April 2005 - openSUSE Security - openSUSE Mailing Lists

Self DOS with xosview?
by David Huecking 07 May '05

07 May '05

Hello! I run xosview on some machines to be informed about their status. Now with SuSE Linux 9.2 x86 I've go the prob that from time to time xosview does eat all memory available on the machine running the X-server to display the xosview-windows (my workstation). At the same time it may happen that from remote-machine A the xosview works correct, from remote-machine B it does not and from local machine it also does not work. Some time later when I switched my workstation off and on again all xosviews are running smoothly... Though it happens only from time to time it seems like some kind of race condition?! I did a strace of a error xosview session: [...] mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001b000 read(4, "Personalities : [raid1] \nmd1 : a"..., 8192) = 195 read(4, "", 7168) = 0 close(4) = 0 munmap(0x4001b000, 4096) = 0 mmap2(NULL, 943079424, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40357000 mmap2(NULL, 943079424, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x786bb000 The last mmap2-call seems to be the bad one. As I understand the mmap2-call it does allocate 943079424 bytes of memory (would be around 900MB). On a correctly running xosview session the program goes into the loop to grab the informations from /proc after the munmap(): [...] mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001b000 read(4, " CPU0 \n 0: 234"..., 8192) = 490 read(4, "", 7168) = 0 close(4) = 0 munmap(0x4001b000, 4096) = 0 open("/proc/mdstat", O_RDONLY) = 4 fstat64(4, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001b000 read(4, "Personalities : [raid1] \nmd1 : a"..., 8192) = 196 read(4, "", 7168) = 0 close(4) = 0 munmap(0x4001b000, 4096) = 0 write(3, "\20\1\t\0\33\0`\5XDCCC_LINEAR_RGB_CORRECT"..., 36) = 36 read(3, 0xbfffea70, 32) = -1 EAGAIN (Resource temporarily unavailable) [...] I do remember this behaviour from a SuSE 9.0 based system where I switched to a self-compiled Kernel 2.6 (9.0 was with 2.4...). But there was a patch for xosview available because the structure of /proc changed from 2.4 to 2.6. To customize xosview I added the following to my .Xresources ! =========================================================================== ! XOsview ! =========================================================================== xosview*netBandwidth: 10000000 ! for 100Mbit/s Ethernet (could be 12500000) !xosview*netBandwidth: 5000000 xosview*netGraph: True xosview*cpuGraph: False !True xosview*loadGraph: True xosview*disk: True xosview*diskBandwidth: 20000000 xosview*RAID: True But even if I comment out the last line (RAID /proc/mdstat) or even every line, so that the resource are standard it does not work... Anyone an idea what I could do/ test further? TIA. -- Eat, sleep and go running, David Huecking. Encrypted eMail welcome! GnuPG/ PGP-Key: 0x57809216. Fingerprint: 3DF2 CBE0 DFAA 4164 02C2 4E2A E005 8DF7 5780 9216

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Strange links, /usr/bin/[ ?
by pelibali 04 May '05

04 May '05

Hi, On my SUSE 9.1 I found two quite strange links as /dev/shm/Desktop/~Desktop -> /dev/shm/Desktop/ /var/lib/ntp/var/lib/~ntp -> ../.. I have no idea, what is the meaning to have the above stuff. Anyone could explain it please?! By the way I have an interesting '/usr/bin/[' file as well; is this strange name just an accident or it supposed to be like this? And why then this uncommon name? (The file belongs to the coreutils package and is present also in SUSE 9.2: http://www.novell.com/products/linuxpackages/professional/coreutils.html Thanks, Pelibali

9 23

Illegal user?
by NSK 03 May '05

03 May '05

from /var/log/messages I see msgs like sshd[31200]: Illegal user agata sshd[31202]: Illegal user alejandro sshd[31204]: Illegal user alice sshd[31206]: Illegal user alka All from the same IP address in South Korea. What should I do? -- NSK http://portal.wikinerds.org

6 5

Security updates SL Prof.
by Andreas Hergesell 30 Apr '05

30 Apr '05

Hi List, I am wondering if Novell still offers (all) security-updates for SuSE Linux? On Novell's Website [1] i found that Security Patches have "Limited availability". What does this mean? Thanks Andreas [1]http://www.novell.com/products/linuxprofessional/comparative.html

2 1

Problems with gpg-agent
by Rikard Johnels 30 Apr '05

30 Apr '05

Hi all! I am on a SuSE 9.2 system tring to set up Kmail to use encryption as descriped on http://kmail.kde.org/kmail-pgpmime-howto.html I installed a standard KDE system via Yast, and added apt after that. Then i dist-upgraded the whole system to get KDE 3.4 among other things. But now as i am trying to get gpg-agent to run as expected, but it doesn't seem to want to export the GPG_AGENT_INFO as prescribed. sparhawk:/home/rikjoh # rpm -q gpg2 gpg2-1.9.10-3.2 sparhawk:/home/rikjoh # gpg-agent -v --daemon gpg-agent[32048]: Secure memory is not locked into core gpg-agent[32048]: NOTE: this is a development version! gpg-agent[32048]: listening on socket `/tmp/gpg-8Wz2dm/S.gpg-agent' GPG_AGENT_INFO=/tmp/gpg-8Wz2dm/S.gpg-agent:32049:1; export GPG_AGENT_INFO; rikjoh@sparhawk:~> echo $GPG_AGENT_INFO rikjoh@sparhawk:~> gpg-agent -? gpg-agent (GnuPG) 1.9.10 Copyright (C) 2004 Free Software Foundation, Inc. This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions. See the file COPYING for details. < lines cut> And as the $GPG_AGENT_INFO contains nil, programs that rely on it malfunctions. Any clues? -- /Rikard " Sharing knowledge is the most fundamental act of friendship. Because it is a way you can give something without loosing something." -R. Stallman --------------------------------------------------------------- Rikard Johnels email : rikjoh(a)norweb.se Web : http://www.rikjoh.com/users/rikjoh Mob : +46 735 05 51 01 PGP : 0x461CEE56 ---------------------------------------------------------------

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SUSE Security Announcement: Mozilla Firefox, Mozilla various security problems (SUSE-SA:2005:028)
by Marcus Meissner 29 Apr '05

29 Apr '05

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: Mozilla. Mozilla Firefox Announcement-ID: SUSE-SA:2005:028 Date: Wed, 27 Apr 2005 15:00:00 +0000 Affected products: 8.2, 9.0, 9.1, 9.2, 9.3 SUSE Linux Desktop 1.0 SUSE Linux Enterprise Server 8, 9 Novell Linux Desktop 9 Vulnerability Type: remote code execution Severity (1-10): 7 SUSE default package: yes Cross References: CAN-2005-0989 MFSA 2005-33 CAN-2005-0752 MFSA 2005-34 CAN-2005-1153 MFSA 2005-35 CAN-2005-1154 MFSA 2005-36 CAN-2005-1155 MFSA 2005-37 CAN-2005-1156 CAN-2005-1157 MFSA 2005-38 CAN-2005-1158 MFSA 2005-39 CAN-2005-1159 MFSA 2005-40 CAN-2005-1160 MFSA 2005-41 Content of this advisory: 1) security vulnerability resolved: various security problems in Mozilla based browsers problem description 2) solution/workaround 3) special instructions and notes 4) package location and checksums 5) pending vulnerabilities, solutions, workarounds: See SUSE Security Summary Report. 6) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion Several problems have been fixed with the security update releases of the Mozilla Firefox 1.0.3 web browser and the Mozilla Suite 1.7.7. This security update contains those security fixes. The Firefox packages have been directly upgraded to the version 1.0.3, for the Mozilla Suite packages the fixes up to version 1.7.7 have been back ported. Updates are currently provided for: Mozilla Firefox: SUSE Linux 9.0 up to 9.3, Novell Linux Desktop 9 Mozilla Suite: SUSE Linux 9.2 and 9.3 Fixes of the Mozilla Suite for older products (SUSE Linux 8.2 - 9.1, SUSE Linux Enterprise Server 8 and 9, SUSE Linux Desktop 1.0) are being worked on. Following security issues have been fixed: - MFSA 2005-33,CAN-2005-0989: A flaw in the Javascript regular expression handling of Mozilla based browser can lead to disclosure of browser memory, potentially exposing private data from web pages viewed or passwords or similar data sent to other web pages. This flaw could also crash the browser. - MFSA 2005-34,CAN-2005-0752: With manual Plugin install it was possible for the Plugin to execute javascript code with the installing users privileges. - MFSA 2005-35,CAN-2005-1153: Showing blocked javascript: pop up uses wrong privilege context, this could be used for a privilege escalation (installing malicious plugins). - MFSA 2005-36,CAN-2005-1154: Cross-site scripting through global scope pollution, this could lead to an attacker being able to run code in foreign websites context, potentially sniffing information or performing actions in that context. - MFSA 2005-37,CAN-2005-1155,"firelinking": Code execution through javascript: favicons, which could be used for a privilege escalation. - MFSA 2005-38,CAN-2005-1157,CAN-2005-1156,"firesearching": Search Plugin cross-site scripting. - MFSA 2005-39,CAN-2005-1158: Arbitrary code execution from Firefox sidebar panel II. - MFSA 2005-40,CAN-2005-1159: Missing Install object instance checks. - MFSA 2005-41,CAN-2005-1160: Privilege escalation via DOM property overrides. 2) solution/workaround None, please install the updated packages. 3) special instructions and notes None. 4) package location and checksums Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web. x86 Platform: SUSE Linux 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/MozillaFirefox-1.0.3-1… fe494d595b165e3d801d8480ba42d934 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/MozillaFirefox-transla… e8b3034594b1d3ff940899e4b7fd556a ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/mozilla-1.7.5-17.2.i58… 38227c087af417ea098e764d978625f9 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/mozilla-calendar-1.7.5… 0622920dc7c7346e8f3ed97a35043a5b ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/mozilla-devel-1.7.5-17… 81e5a8a3dfccd675f27d1b9aa1074def ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/mozilla-dom-inspector-… d7445e7ac5d68b84df66836d36bd8e9e ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/mozilla-irc-1.7.5-17.2… 2b5d35f8957bfe8bf36d1d710df16b64 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/mozilla-mail-1.7.5-17.… 943b850051ec81b65a8ecfb46d2dd186 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/mozilla-spellchecker-1… c1531d820fce14c2da544096c542548e ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/mozilla-venkman-1.7.5-… 59421c602e482226aa3b25c342717dbd ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/mozilla-32bit-9.3-7.… b44ebfe412ee2d6e4b866659219f449b SUSE Linux 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/MozillaFirefox-1.0.3-1… 736eeae09a23b0378ca294ebaa3c7c63 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/mozilla-1.7.2-17.9.i58… 82c250f9783d6c21fd98a330ebeb267d ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/mozilla-calendar-1.7.2… a0bf81303a3d8dce9eb46af6f31ee518 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/mozilla-devel-1.7.2-17… 0d1bd3e050a9d0f64f2afe27195d7aa9 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/mozilla-dom-inspector-… 38bf1250cd483a0dc66b276d9640d51e ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/mozilla-irc-1.7.2-17.9… 0452b6dacd213ad2a4a20dda13a080f0 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/mozilla-mail-1.7.2-17.… af54b9760cbd16d8a0e14fe789592ca0 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/mozilla-spellchecker-1… 220d35ce4aca302c76d282e0aa1fe860 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/mozilla-venkman-1.7.2-… 3b8b41a0d4df73413f6b02d7f3014ce1 SUSE Linux 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/MozillaFirefox-1.0.3-0… 633d3e33bdfbccb3ea8665f85bb89a00 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/MozillaFirefox-1.0.3-0.… 272a238439a4a2e756815a3b7e79c19f SUSE Linux 9.0: ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/MozillaFirebird-1.0.3-… 1c5e3de27a07f3266e6061f655c88cd8 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/MozillaFirebird-1.0.3-3… 9561937bac554affcb5a11115c2125b1 x86-64 Platform: SUSE Linux 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/mozilla-1.7.5-17.2.x… db99d96f3a7425f9619ce04a32762638 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/mozilla-calendar-1.7… fc0018d422f160a0ccade5bf2c0d43f7 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/mozilla-devel-1.7.5-… 8ecfeacdb888abdad99c97f8607c928c ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/mozilla-dom-inspecto… 2e3b67a03688f057a86baa97ea38715c ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/mozilla-irc-1.7.5-17… e74894451ca70e367cd517ef8288aa3c ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/mozilla-mail-1.7.5-1… d03ca7840b33d530f9550a6d31d236c9 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/mozilla-spellchecker… 8ddf1317fd9a57e2ca2def64efa8a396 ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/mozilla-venkman-1.7.… 34ec54027c3460430b8d92b516a440fd source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/mozilla-1.7.5-17.2.src.… 34898b0c34ba91ea11121ac11644dcf7 SUSE Linux 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/MozillaFirefox-1.0.3… e2a2c8793ded2bb3900ab9594bf860a7 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/mozilla-1.7.2-17.9.x… a435cb5e2dcc27248cf61c44e08fda23 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/mozilla-calendar-1.7… 27d6d3dc54c25efff8d2369a68f80116 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/mozilla-devel-1.7.2-… 12340bf83bd14e332d30d0b4f3ae3833 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/mozilla-dom-inspecto… 3965d0520de2abcddea7732fda1aa24a ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/mozilla-irc-1.7.2-17… 5eda1256f790f6ef93497b905e316496 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/mozilla-mail-1.7.2-1… 5107c689a3cb8c27b5e257a4cf64a6cc ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/mozilla-spellchecker… aff79f3b35a26eef5ba540aea8722bed ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/mozilla-venkman-1.7.… 89e0849e1bb2d8ab0164c7538d5d67fc source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/MozillaFirefox-1.0.3-1.… 38f5439c03baf379d3ec972bee6be113 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/mozilla-1.7.2-17.9.src.… 2b17a94896e81fafc197a22f4cedc892 SUSE Linux 9.1: ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/MozillaFirefox-1.0… 7abc1803a8086e9d298ff4e17e757325 source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/MozillaFirefox-1.0.3-… 3d1e05785b0e84e19caf7f03d29e4dd2 SUSE Linux 9.0: ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/MozillaFirebird-1.… d3e7925e57a397f08ce736d7e5c76432 source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/MozillaFirebird-1.0.3… e0f87b8aedf4679fc2c3d70ea5404717 ______________________________________________________________________________ 5) Pending vulnerabilities in SUSE Distributions and Workarounds: See SUSE Security Summary Report. ______________________________________________________________________________ 6) standard appendix: authenticity verification, additional information - Package authenticity verification: SUSE update packages are available on many mirror ftp servers all over the world. While this service is being considered valuable and important to the free and open source software community, many users wish to be sure about the origin of the package and its content before installing the package. There are two verification methods that can be used independently from each other to prove the authenticity of a downloaded file or rpm package: 1) md5sums as provided in the (cryptographically signed) announcement. 2) using the internal gpg signatures of the rpm package. 1) execute the command md5sum <name-of-the-file.rpm> after you downloaded the file from a SUSE ftp server or its mirrors. Then, compare the resulting md5sum with the one that is listed in the announcement. Since the announcement containing the checksums is cryptographically signed (usually using the key security(a)suse.de) the checksums show proof of the authenticity of the package. We disrecommend to subscribe to security lists which cause the email message containing the announcement to be modified so that the signature does not match after transport through the mailing list software. Downsides: You must be able to verify the authenticity of the announcement in the first place. If RPM packages are being rebuilt and a new version of a package is published on the ftp server, all md5 sums for the files are useless. 2) rpm package signatures provide an easy way to verify the authenticity of an rpm package. Use the command rpm -v --checksig <file.rpm> to verify the signature of the package, where <file.rpm> is the filename of the rpm package that you have downloaded. Of course, package authenticity verification can only target an un-installed rpm package file. Prerequisites: a) gpg is installed b) The package is signed using a certain key. The public part of this key must be installed by the gpg program in the directory ~/.gnupg/ under the user's home directory who performs the signature verification (usually root). You can import the key that is used by SUSE in rpm packages for SUSE Linux by saving this announcement to a file ("announcement.txt") and running the command (do "su -" to be root): gpg --batch; gpg < announcement.txt | gpg --import SUSE Linux distributions version 7.1 and thereafter install the key "build(a)suse.de" upon installation or upgrade, provided that the package gpg is installed. The file containing the public key is placed at the top-level directory of the first CD (pubring.gpg) and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de . - SUSE runs two security mailing lists to which any interested party may subscribe: suse-security(a)suse.com - general/linux/SUSE security discussion. All SUSE security announcements are sent to this list. To subscribe, send an email to <suse-security-subscribe(a)suse.com>. suse-security-announce(a)suse.com - SUSE's announce-only mailing list. Only SUSE's security announcements are sent to this list. To subscribe, send an email to <suse-security-announce-subscribe(a)suse.com>. For general information or the frequently asked questions (faq) send mail to: <suse-security-info(a)suse.com> or <suse-security-faq(a)suse.com> respectively. ===================================================================== SUSE's security contact is <security(a)suse.com> or <security(a)suse.de>. The <security(a)suse.de> public key is listed below. ===================================================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. In particular, it is desired that the clear-text signature shows proof of the authenticity of the text. SUSE Linux AG makes no warranties of any kind whatsoever with respect to the information contained in this security advisory. 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3 2

Firewall problem
by Gudmundur Arnljotsson 28 Apr '05

28 Apr '05

Hi list I hope someone can help me out of the trouble (problem has become trouble) I’m in after promoting using Linux server (SuSE standard server 8). My problem is allowing multiple pptp connection from my local LAN clients to same Win server out there somewhere. My current setup does work for 1 connection Google search gave me 2 options. 1 patch the kernel and compile (bad idea because it has to be repeated for all SuSE kernel updates). 2 Let the server create pptp connection and use some advance routing using some program from sourceforge, but this fails because of some non upgradeable lib in SLSS8 (how would you anyway start and terminate it remotely) So I went for patching my kernel with latest pom and iptables. This is what I did: Patch the kernel with pptp_conntrack_nat (KERNEL_DIR and iptables dir correct) make mrproper make clonconfig make xconfig and install the patches as modules make dep && make bzImage && make modules && make modules_install && make install make all install for new iptables (into /usr/sbin not /usr/local/sbin which was default for iptables) No errors so far and ip_nat_proto_gre and ip_nat_pptp are not loaded (they would brake my poptop server according to Google), but ip_conntrack_proto_gre and ip_conntrack_pptp are. But now I get this error “kernel: ip_conntrack_pptp: error during exp_gre” and I still can only create 1 connection (this error is only when the new modules are loaded) Help file in pom say’s: The GRE connection is marked as RELATED to the TCP session on port 1723, so all you need is something like iptables -j ACCEPT -m state --state RELATED,ESTABLISHED iptables -j ACCEPT -d my_pptp_server -p tcp --dport 1723 -m state --state NEW I have tried to put this in the custom script but get errors (iptables command missing or something like that). I have tried to get help from netfilter list but no luck (think they run away when SuSE is mentioned), but anyway I don’t want to become an expert on iptables for one issue (still have my ordinary work to do). Please help me, otherwise the Microsoft guys have proven me wrong and I have to swap over to Redmond (or was it Redneck) My setup is INTERNET--NAT ROUTER--SuSE--local LAN Default setup as domain, email server etc, all patches up to date -- regards Gudmundur Arnljotsson B.Sc Independent Scales Ltd 100a Hayton Road P.O. Box 8098 Christchurch New Zealand Tel Office: +64 03 341 1324 Mobile: +64 021 475 581

1 0

var/log/messages question
by NSK 28 Apr '05

28 Apr '05

Hi What does the following means in /var/log/messages ? su: (to nobody) root on none last message repeated 2 times last message repeated 2 times -- NSK http://portal.wikinerds.org

2 1

SuSEfirewall2 / iptables log analyzer? How does iptables - SNMP work?
by Markus Feilner 28 Apr '05

28 Apr '05

Hello List, which analyzer for iptables or SuSEfirewall do you use? IPTables log analyzer from http://www.gege.org/iptables/ seems to be of 2002, On http://www.iptablesrocks.org/guide/analyze.php they recommend http://www.iptablesrocks.org/downloads/iptables_logger_v0.4.tar.gz, but that needs a sql database, too - which i don't want to have on my firewall. So, sorry, there are two questions: 1) DO you know a small loganalyzer for iptables? 2) Could someone point me how to combine snmp and iptables? I have some firewalls with a nagios server, some standalone... Thanks! -- --------------------------- Bitte beachten Sie unsere neuen Adressdaten! Vielen Dank. --------------------------- Feilner IT Linux & GIS Linux Solutions, Training, Seminare und Workshops - auch Inhouse Beraiterweg 4 93047 Regensburg fon +49 941 9465243 fax +49 941 9465244 mobil + +49 170 3027092 mail mfeilner(a)feilner-it.net web http://www.feilner-it.net

3 2

Shutting down my computer from KDE doesn't work - have I been compromised?
by Rodney Ricks 28 Apr '05

28 Apr '05

I'm running Suse 9.2 Professional and using KDE. I'm behind two firewalls, the outer one is hardware-based, the inner one running PF, Snort and Squid on OpenBSD 3.4. When trying to log out of the computer and shut down, I click on the Suse menu button and click Logout. Then, I click the button to shut down the system. This used to work fine. Lately, I've had to start doing it two times to get the system to actually shut down. Now it seems to stay up more often than it shuts down, and after the first time, I can't even get to the system shutdown button anymore. When that happens, I've been using the shutdown command in the shell to bring the system down. I should note that I have had some situations where my root partition hit 100% full, but I think this shutdown failure may have started happening before root was filled up. Hey, I just started running MythTV, and tv shows take up a lot of disk space! :-) It sounds like my system may have been compromised, or am I jumping to conclusions? If I have been compromised, does anybody know which exploit this is likely to be, or have any recovery advice? Thanks in advance, Rodney

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RE: [suse-security] unsubscrive
by Matt T. Duval 27 Apr '05

27 Apr '05

Spell check. Thank you, Matt Duval Sr. Network Engineer HealthTrans www.healthtrans.com "Transforming Healthcare, One Transaction At A Time" (720) 493-8252 6061 South Willow Drive Suite 125 Greenwood Village, CO 80111 -----Original Message----- From: Eric Lalande [mailto:eric@lalande.com] Sent: Wednesday, April 27, 2005 1:31 PM To: suse-security(a)suse.com Subject: [suse-security] unsubscrive unsubscribe >-----Original Message----- >From: Theo v. Werkhoven [mailto:twe-suse.sec@ferrets4me.xs4all.nl] >Sent: Wednesday, April 27, 2005 02:07 PM >To: suse-security(a)suse.com >Subject: Re: [suse-security] SuSEconfig and read-only proc in 9.2 > >On Sun, 24 Apr 2005, Joe made the net somewhat safer by saying: > >> On Sonntag, 24. April 2005 17:43 Theo v. Werkhoven wrote: >> > On Sat, 23 Apr 2005, Joe made the net somewhat safer by saying: >> > > On Samstag, 23. April 2005 03:38 Joe Knall wrote: >> > >> > [..] >> > >> > > > Unmounting /var/spool/postfix/proc does apparently not >> > > > affect anything. >> > > > >> > > > Is there a deeper meaning in it in the end? >> > > >> > > This question is still open. Is there anybody in the know? >> > > Thanks for your comments >> > >> > Don't enable chroot for Postfix, unless you know what you're >> > doing. >> > >> > Theo >> >> Well, that may be correct. Would you mind providing me any >> enlightning link or so to let me really make the net somewhat >> safer? > >The topic regularly comes up in the Postfix mailinglist. >There's a script in the Postfix documentation directory to setup >chroot without the special SuSE tricks. >/usr/share/doc/packages/postfix/examples/chroot-setup/LINUX2 > >> Btw, my chrooted apaches, mysql and squid all work well without a >> proc filesystem within their jails, but those are selfmade. With >> postfix I just a feature included in delivery. And that's one of >> the reasons why I still ask for the meaning behind this config of >> postfix or what ever may be behind it. > >I can't guess the reasons behind SuSE's implementation of the chroot >environment for Postfix, I do know that Postfix's author tells >people that chroot isn't an end to all security problems and it can >be more trouble than it's worth. > >Theo >-- >Theo v. Werkhoven Registered Linux user# 99872 http://counter.li.org >ICBM 52 13 26N , 4 29 47E. + ICQ: 277217131 >SUSE 9.2 + Jabber: muadib(a)jabber.xs4all.nl >Kernel 2.6.8 + See headers for PGP/GPG info. >Claimer: any email I receive will become my property. Disclaimers do not apply. > >-- >Check the headers for your unsubscription address >For additional commands, e-mail: suse-security-help(a)suse.com >Security-related bug reports go to security(a)suse.de, not here > >

1 0

SuSEconfig and read-only proc in 9.2
by Joe Knall 27 Apr '05

27 Apr '05

Hi all, every time after yast ran suseconfig /proc is additionally mounted *read-only* as /var/spool/postfix/proc. My question is how to get rid of this feature. Yes, this may be slightly off topic here, but at least it prevents me from running online-update (yast) and iptables things (write in proc) cronbased without umounting a filesystem first - seems to be nonsense. It concerns all of my boxes running 9.2 with postfix chrooted by yast. Unmounting /var/spool/postfix/proc does apparently not affect anything. Is there a deeper meaning in it in the end? Thanks for any even deeper insight! Joe

4 8

unsubscrive
by Eric Lalande 27 Apr '05

27 Apr '05

unsubscribe >-----Original Message----- >From: Theo v. Werkhoven [mailto:twe-suse.sec@ferrets4me.xs4all.nl] >Sent: Wednesday, April 27, 2005 02:07 PM >To: suse-security(a)suse.com >Subject: Re: [suse-security] SuSEconfig and read-only proc in 9.2 > >On Sun, 24 Apr 2005, Joe made the net somewhat safer by saying: > >> On Sonntag, 24. April 2005 17:43 Theo v. Werkhoven wrote: >> > On Sat, 23 Apr 2005, Joe made the net somewhat safer by saying: >> > > On Samstag, 23. April 2005 03:38 Joe Knall wrote: >> > >> > [..] >> > >> > > > Unmounting /var/spool/postfix/proc does apparently not >> > > > affect anything. >> > > > >> > > > Is there a deeper meaning in it in the end? >> > > >> > > This question is still open. Is there anybody in the know? >> > > Thanks for your comments >> > >> > Don't enable chroot for Postfix, unless you know what you're >> > doing. >> > >> > Theo >> >> Well, that may be correct. Would you mind providing me any >> enlightning link or so to let me really make the net somewhat >> safer? > >The topic regularly comes up in the Postfix mailinglist. >There's a script in the Postfix documentation directory to setup >chroot without the special SuSE tricks. >/usr/share/doc/packages/postfix/examples/chroot-setup/LINUX2 > >> Btw, my chrooted apaches, mysql and squid all work well without a >> proc filesystem within their jails, but those are selfmade. With >> postfix I just a feature included in delivery. And that's one of >> the reasons why I still ask for the meaning behind this config of >> postfix or what ever may be behind it. > >I can't guess the reasons behind SuSE's implementation of the chroot >environment for Postfix, I do know that Postfix's author tells >people that chroot isn't an end to all security problems and it can >be more trouble than it's worth. > >Theo >-- >Theo v. Werkhoven Registered Linux user# 99872 http://counter.li.org >ICBM 52 13 26N , 4 29 47E. + ICQ: 277217131 >SUSE 9.2 + Jabber: muadib(a)jabber.xs4all.nl >Kernel 2.6.8 + See headers for PGP/GPG info. >Claimer: any email I receive will become my property. Disclaimers do not apply. > >-- >Check the headers for your unsubscription address >For additional commands, e-mail: suse-security-help(a)suse.com >Security-related bug reports go to security(a)suse.de, not here > >

1 0

RE: [suse-security] Securely wiping external usb hard drive
by Baenen Eric P Contr AFRL/HEC 27 Apr '05

27 Apr '05

BCWipe worked perfectly! And ironically it turns out we have a site license for bcwipe - it just never dawned on me that there was a Unix/Linux version - my group has always just used the boot floppy version (which doesn't support usb drives). The rpm installed without issue under SUSE 9.2 and a simple "bcwipe -bvmd /dev/sda" - 7 passes later (probably about six hours or so) and the drive was nicely wiped. Thank you very much for the pointer. As always - list members have been most helpful. Eric Eric Baenen Program Manager - Scientific Network Environments General Dynamics - Advanced Information Systems Phone: 937-255-8180 FAX: 937-255-8845 2255 H Street (AFRL/HEC) Area B Bldg 248 Rm 108 Wright Patterson AFB, OH 45433 -----Original Message----- From: Craig Rodenberg [mailto:crodenberg@sbcglobal.net] Sent: Tuesday, April 26, 2005 10:30 AM To: suse-security(a)suse.com Cc: Baenen Eric P Contr AFRL/HEC Subject: Re: [suse-security] Securely wiping external usb hard drive Hello Eric, Jetico BCWipe will destroy data on SuSE. Heck, they even provide RPM's. http://www.jetico.com I have verified the effectiveness of BCwipe on SuSE (reiserfs and ext3), RedHat(ext3 anf JFS) and Slackware (ext2) against EnCase Enterprise edition, Forensic Tool Kit and Recovery Pro in our labs. During "whole disk" linux erasures, BCwipe performed flawlessly. If you are looking to satisfy OPSEC or COMSEC standards for wiping a Linux drive, BCwipe will meet your needs. There are other wiping programs available('srm' at sf.net comes to mind..), but so far none of them have satisfied my Security Engineers like BCwipe for destroying sensitive or controversial data. Hope that helps. Craig Rodenberg, GIAC Director, Information Security MyTek Managed Security Services www.mytek.net

1 0

Fw: [suse-security] Hard Drive Error
by Philip B Cook 27 Apr '05

27 Apr '05

> I have stripped down the machine, disconnected and reconnected the hard > drives. > I have re-installed LINUX (though not yet allowed YOU to get any updates) > using the same LVM disk partition arrangement, but re-formatted all the > partitions. > I am presently restoring the data to the LVM. > I will let you know if the problem recurs. > > If this still fails then I will switch to an alternative mobo ie change the > ide controller chip.. before finally sending the Primary Slave disk back to > the supplier (it is only 10 months old). > I have now filled the disk with data, and it is performing without problem. I will keep an eye on it for a while. Maybe the re-format helped ? One other thought, am I correct in thinking that having used an LVM I am forced to use LILO rather than GRUB. There are usually special instructions on a Kernel update that require manual intervention when using LILO. Could YOU have installed a new kernel, without the special handling for LILO ? I have previously left YOU to operate as a CRON job and auto-update each night. So far I have not allowed any ONLINE UPDATES to the system as I test it. My system is now a basic SUSE Prof 9.1 straight from the CDs, with no updates. Any thoughts? Philip

2 1

RE: [suse-security] Securely wiping external usb hard drive
by Baenen Eric P Contr AFRL/HEC 27 Apr '05

27 Apr '05

There is nothing particularly sensitive on the drive - unless you count the annual personnel reviews of my team - other than that it's just apt/rpm/deb archives and install disk iso's for several Linux distros in use here. However the US military does require secure wiping of all hard drives before transfer, turn in, etc... just in case. You never know what someone might find useful or interesting... the term used is OPSEC (Operations Security). Windoze programs like bcwipe and eraser (http://www.dirfile.com/eraser.htm) can do the job to military specs - I was just hoping to find a SUSE based solution so I don't have to track down a windoze system I can use for a while. I'm not sure if it's the drive or the laptop but so far "dd if=/dev/urandom of=/dev/sda" has been running for about 8 hours - first pass. I may just have to fall back to a windoze solution - bcwipe only takes a few hours to make 7 passes of varying patterns. This was somewhat of an evaluation/experiment - I don't think we'll be using this make/model of external drive any more. Thanks, Eric Eric Baenen Program Manager - Scientific Network Environments General Dynamics - Advanced Information Systems Phone: 937-255-8180 FAX: 937-255-8845 2255 H Street (AFRL/HEC) Area B Bldg 248 Rm 108 Wright Patterson AFB, OH 45433 -----Original Message----- From: Mike Tierney [mailto:miket@marketview.co.nz] Sent: Monday, April 25, 2005 5:35 PM To: 'Baenen Eric P Contr AFRL/HEC'; 'Suse-Security List (E-mail)' Subject: RE: [suse-security] Securely wiping external usb hard drive Given that you work for the Military, I'd recommend that you have a talk to your local IT people about what they recommend. No doubt they'd have quite stringent rules and regulations for disposing of storage devices that held sensitive information. That's if you are using this drive to transfer information between work and home! In which case I'd hope it was all encrypted as well! However if it's just your own personal hard-drive (that's never held sensitive Air Force information) then running "dd i=/dev/urandom o=/dev/sda" a few times would probably do it. Having said that, I read once that hi-tech hardware data recovery devices can still retrieve "old" information from a hard-drive from its lingering magnetic imprint even AFTER its been wiped over with new data. But those devices are probably only routinely employed by foreign governments, competitors engaging in industrial esponiage and of course data retrievel specialists :)

5 4

RE: [suse-security] Securely wiping external usb hard drive
by Jarosław Nozderko 27 Apr '05

27 Apr '05

Another 'wipe' tool: http://abaababa.ouvaton.org/wipe/ Regards, Jarek > -----Wiadomość oryginalna----- > Od: Richard Ems [mailto:suse-security@mtg-marinetechnik.de] > Wysłano: 26 kwietnia 2005 17:37 > Do: suse-security(a)suse.com > Temat: Re: [suse-security] Securely wiping external usb hard drive > > What about wipe? > > wipe-2.2.0-21 on SuSE 9.2 > > NAME > wipe - secure file deletion utility > > > SYNOPSIS > wipe > > [-ucwsiIhfFdDnNvVzZrRtTkKaA] [-B(count)] [-S(size)] > [-C(size)] [-o[size] -O] [-l[0-2]] [-x[1-32] -X] [-p(1-32)] > [-b(0-255)] [files] > > > DEFAULT > wipe -ZdntVAkO -S512 -C4096 -l1 -x8 -p1 > > > DESCRIPTION > Wipe is a secure file wiping utility. There are some low > level issues that must be taken into consideration. One of > these is that there must be some sort of write barrier > between passes. Wipe uses fdatasync(2) (or fsync(2)) as a > write barrier, or if fsync(2) isn't available, the file is > opened with the O_DSYNC or O_SYNC flag. For wipe to be effec‐ > tive, each pass must be completely written. To ensure this, > the drive must support some form of a write barrier, write > cache flush, or write cache disabling. SCSI supports ordered > command tags, has a force media access bit for commands, and > write cache can be disable on mode page 8. IDE/ATA drives > support write cache flushes and write cache disabling. Unfor‐ > tunetly, not all drives actually disable write cache when > asked to. Those drives are broken. Write caching should > always be disabled, unless your system is battery backed and > always powers down cleanly > > > -- > Richard Ems > Tel: +49 40 65803 312 > Fax: +49 40 65803 392 > Richard.Ems(a)mtg-marinetechnik.de > > MTG Marinetechnik GmbH - Wandsbeker Koenigstr. 62 - D 22041 Hamburg > > GF Dipl.-Ing. Ullrich Keil > Handelsregister: Abt. B Nr. 11 500 - Amtsgericht Hamburg Abt. 66 > USt.-IdNr.: DE 1186 70571 > > > -- > Check the headers for your unsubscription address For > additional commands, e-mail: suse-security-help(a)suse.com > Security-related bug reports go to security(a)suse.de, not here > >

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pppd timeout options
by Miguel ALBUQUERQUE 26 Apr '05

26 Apr '05

Hi all, I'm trying to find that obscure option in pptpd that will keep an even idle connection alive forever...any ideas ? Thanks ______________________________________________________________ «¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»«¤»¥«¤»§«¤»¥«¤» ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ CODALIS SA www.codalis.ch 17, rue de la Fontenette, CAROUGE TEL : +41 22 827 30 30 FAX : +41 22 827 30 33 ______________________________________________________________ «¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»§«¤»¥«¤»«¤»¥«¤»§«¤»¥«¤» ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

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Securely wiping external usb hard drive
by Baenen Eric P Contr AFRL/HEC 26 Apr '05

26 Apr '05

List members, I'm running SUSE 9.2 Pro... can anyone recommend an app or technique for securely wiping the contents on an external usb hard drive with a single 120GB reiserfs partition? - unfortunately because of the case design - cracking the case and removing the drive so it can be connected directly to an IDE controller is not an option - fdisk'ing the drive, just wiping the partition table, reformating, etc. are not sufficient - I need an option that will make the drive's current contents reasonably unrecoverable - it's been suggested that I repeatedly do "dd i=/dev/urandom o=/dev/sda && dd i=/dev/zero o=/dev/sda" - and I will do this if necessary - but would rather not take the days that this is likely to take - it's also been suggested to use 'shred' - however, in the man pages for shred is says that because of the redundancies and protections built into the Reiser filesystem - that shed will not truely and securely wipe the files - there is a reasonable chance of recovery after shreddig files on Reiser Thanks, Eric Eric Baenen Program Manager - Scientific Network Environments General Dynamics - Advanced Information Systems Phone: 937-255-8180 FAX: 937-255-8845 2255 H Street (AFRL/HEC) Area B Bldg 248 Rm 108 Wright Patterson AFB, OH 45433

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CUPS / LPR Access Control
by Bill Miller Jr 25 Apr '05

25 Apr '05

Hello, I am trying to find where LPR / CUPS do their access control to enable the wwwrun user to print documents. As this deals with access control I believe this is the correct place to ask this question. A little background on what I am trying to accomplish. I am designing a strictly internal web based data collection and reporting system. I have a PHP script that on certain conditions will print a file to a printer. In testing I am doing su -c 'cat testdoc | lpr -Pprinter' - normal_user which works fine and su -c 'cat testdoc | lpr -Pprinter' - wwwrun which does not work at all. Looking through cups admin at http://127.0.0.1:631/ shows all the print jobs for normal users and none of the print jobs for wwwrun. Thank You. Bill Miller jrmiller(a)cbnlottery.com

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ipsec with openswan (suse 9.2) daily restart necessary?
by Markus Feilner 25 Apr '05

25 Apr '05

Hi List, I have several systems running various VPN software, and some are suse 9.2 with ipsec of openswan. from time to time ipsec crashes, the only obvious error line in /var/log/messages is something like: "| called while no event expired" If i add a line to my crontab that restarts ipsec daily, everything works fine. Is that necessary or a misconfiguration? I can provide more details as needed. thanks! -- Mit freundlichen Grüßen Markus Feilner --------------------------- Bitte beachten Sie unsere neuen Adressdaten! Vielen Dank. --------------------------- Feilner IT Linux & GIS Linux Solutions, Training, Seminare und Workshops - auch Inhouse Beraiterweg 4 93047 Regensburg fon +49 941 9465243 fax +49 941 9465244 mobil + +49 170 3027092 mail mfeilner(a)feilner-it.net web http://www.feilner-it.net

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Hard Drive Error
by Philip B Cook 23 Apr '05

23 Apr '05

Apologies guys, I know this is the wrong list, but am unsure which list to use. I only subscribe at present to SUSE Security. Please point me in the right area. I am generating the following errors .. hdb: dma_init: status=0x51 {DriveReady SeekComplete Error} hdb: dma_init: error=0x84 {DriveStatusError BadCRC} ide: failed opcode was : unknown I get about 7 or 8 of these when transfering sustained data from the linux machine to a Windows machine using SAMBA. After these errors the linux machine freezes completely forcing a hard RESET to clear it. I have two physical hard drives hda, hdb (both 120MB Western Digital drives) configured using LVM. The LVM contains my \home directories, which contain the files I am trying to transfer. The system has run for over a year without problems. I have run the DOS based WD diagnostics on the drive and it reports no errors. Any thing you can suggest. Philip

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x86_64 Security Updates For OpenOffice.org?
by Bernie Hoefer 22 Apr '05

22 Apr '05

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm confused by the the recent absence of OpenOffice.org security updates for SuSE 9.1 on the x86_64 platform. For those who don't know, the x86_64 port of SuSE 9.1 has some packages that, apparently, are not 64-bit clean and thus could not be compiled for the x86_64. Thus, the install media, as well as SuSE's FTP site have this kind of directory structure: .../x86_64/update/9.1/rpm/i586 .../x86_64/update/9.1/rpm/noarch .../x86_64/update/9.1/rpm/src .../x86_64/update/9.1/rpm/x86_64 This recent OpenOffice.org security announcement[1] lists vulnerabilities that affect all architectures, but updates for SuSE 9.1 are only available in the .../i386/update/9.1/rpm/i586 ^^^^ directory. Is this just an oversight, or should us x86_64 users be looking in both .../x86_64/.../i586 and .../i386/.../i586 for updates? [1] <http://www.novell.com/linux/security/advisories/2005_25_openoffice_org.html> - -- Bernie Hoefer PGP e-mail is welcome! Get my 1024 bit signature key from: <http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x446A6F93>. "The more I know, the more I realize how much I do not understand." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFCaD/mckGmqURqb5MRAk1WAKCXSiMIEXfAN5Lj9K3DTXBM9dKPOgCdFiiW 4Y0bUQl9bKPKCCfYpwMz9Mk= =Y3ld -----END PGP SIGNATURE-----

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RE: [suse-security] 2-Factor Authentication
by Ness, Todd 21 Apr '05

21 Apr '05

You can use Secure Computing SafeWord Premier access as your server piece and use radius on the Linux client. -----Original Message----- From: Jack Sparrow [mailto:jack_sparrow81@yahoo.com] Sent: Thursday, April 21, 2005 6:31 AM To: suse-security(a)suse.com Subject: [suse-security] 2-Factor Authentication Hi Folks, I'm wondering whether there are any smartcards or USB toekens that can be used to perform 2-factor authentication on Linux. There are many such products out there, but they do not support Linux. I would appreciate if someone could help me to get pointers/information to/about such products. Thanks in advance. Regards, - Jack __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- Check the headers for your unsubscription address For additional commands, e-mail: suse-security-help(a)suse.com Security-related bug reports go to security(a)suse.de, not here

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2-Factor Authentication
by Jack Sparrow 21 Apr '05

21 Apr '05

Hi Folks, I'm wondering whether there are any smartcards or USB toekens that can be used to perform 2-factor authentication on Linux. There are many such products out there, but they do not support Linux. I would appreciate if someone could help me to get pointers/information to/about such products. Thanks in advance. Regards, - Jack __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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