February 2004 - openSUSE Security - openSUSE Mailing Lists

Re: Kernel k_deflt-2.4.21-144.i586.rpm initrd-Problem...
by Security 29 Feb '04

29 Feb '04

Ok, I downdated the system to the original Kernel to be found on cd. Then I tried to install the kernel downloaded at ftp://ftp.gwdg.de/pub/suse/i386/update/9.0/rpm/i586/k_deflt-2.4.21-192.i586.rpm But I still have the same problem. When I do mybox:~ # rpm -Uhv k_deflt-2.4.21-192.i586.rpm Preparing... ########################################### [100%] 1:k_deflt ########################################### [100%] Changing symlink /boot/vmlinuz from vmlinuz-2.4.21-99-default to vmlinuz-2.4.21-192-default Changing symlink /boot/initrd from initrd-2.4.21-99-default to initrd-2.4.21-192-default Root device: /dev/hda6 (mounted on / as ext2) No initrd required Using grub, re-install of bootloader not required. And no initrd is there in /boot. And another mkinitrd outputs Root device: /dev/hda6 (mounted on / as ext2) No initrd required I don't have another box which would need the default kernel so I can't figure out wether it's the default kernel package or my box. Does anybody have the the same problem? Could someone please help me? Thanx. Kind regards Marius Heidenstecker

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RE: [suse-security] Freedom for everyone
by Rainer_Link＠trendmicro.de 29 Feb '04

29 Feb '04

>>> From: <draht(a)suse.de> >>> Request >>spam? spoofed mail? test? secret message? :) ><human-virus-scanner>That's Bagle.E</human-virus-scanner> Uhm, to be more precise: seems to be send from Bagle.E best regards, Rainer Link

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RE: [suse-security] Freedom for everyone
by Rainer_Link＠trendmicro.de 29 Feb '04

29 Feb '04

-----Original Message----- From: Andreas Bittner [mailto:abittner@stud.fh-heilbronn.de] Sent: Sun 2/29/2004 7:47 PM To: suse-security(a)suse.com Cc: Subject: Re: [suse-security] Freedom for everyone >> From: <draht(a)suse.de> >> Request >spam? spoofed mail? test? secret message? :) <human-virus-scanner>That's Bagle.E</human-virus-scanner> best regards, Rainer Link

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Freedom for everyone
by draht＠suse.de 29 Feb '04

29 Feb '04

Request

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Is it possible to restrict a users access to only a few shell commands.
by Bo Jacobsen 29 Feb '04

29 Feb '04

I need to restrict specific users access to only a few shell commands. Some users maybe only need commands like ls, cat, ping, sudo and su, and I like to make sure that NO other commands are avaliable to them. Is this possible ?. I have thought about using chroot, but if the user uses su, he need to be able to have access to all the commands the new user has. Is there a super simple and maybe more secure shell then bash ?. ------------------------------------------------- Med venlig hilsen Bo Jacobsen SystemHouse Vesterbrogade 149, 1620 København V Tlf: 70 21 18 70 Fax: 33 25 05 71 e-mail: Bo(a)SystemHouse.dk

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Re: [suse-security] Kernal patch
by John Andersen 28 Feb '04

28 Feb '04

On Saturday 28 February 2004 05:36, Keith Roberts wrote: > On Fri, 27 Feb 2004, John Andersen wrote: > > To: suse-security(a)suse.com > > From: John Andersen <jsa(a)pen.homeip.net> > > Subject: [suse-security] Kernal patch > > > > That patch was auto-applied by YOU on one of my production servers > > (a dual PII with a software raid on a dual IDE card and which boots from > > a SCSI drive (aic7xxx). > > > > It was NOT safe. It would NOT boot, it kept getting dma timeouts > > and lost interrupts on one of the ide drives (which were part of > > the raid 1 array, not the boot drive). > > I had terrible problems with Linux Software RAID1 using the > md kernel driver, under 8.1. > > I had 2 WD800JB drives as a RAID1 array on hdb & hdc. > > hda was another WD800JB with the SuSE 8.1 system on it. > > hdd was the CD-ROM drive. > > I used to get funny dma timeout messages in > /var/log/boot.msg. > > Seek error ... > > This only happened on the WD800JB connected to hdc. > > The other two WD drives did not get this. Sorry to hear about this Keith. In my case, my software raid 1 has been rock solid stable since SuSE 7.2, thru two upgrades. My only trick has been quality drives, and installing the system on other disks, just useing the raid for company business data. I've often contemplated going to one of those ide raid cards so that Linux sees it as a single device, but have held off because 1) I have the processing power to handle it as the CPU(s) are never busy, and 2) IINBDFI (if its not broke don't fix it), and 3) as my CUP power grows with new platforms the raid performance grows as well where-as the hardware raid remains at the speed it was born with. This same raid has been running for 4 years. But again, the topic of the thread was a bad kernel update not bad hardware. Moving back to the prior kernel has FIXED everything. -- _____________________________________ John Andersen

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Re: [suse-security] Apache log "CONNECT a.b.c.d:25" "200" (fwd)
by Keith Roberts 28 Feb '04

28 Feb '04

> ok, I found this in my personal archive, > and the link is even still vaild: > > Bug #19113 > HTTP status 200 returned on HTTP CONNECT when mod_proxy not in use > http://bugs.php.net/bug.php?id=19113 > > > Lars Ellenberg Thankyou Lars for your help! I have looked at the bug report, and applied the following 'patch' to httpd.conf, after my DocRoot Directory container. This is followed by another Directory listing to deny access to the rest of my srv docs. I only want to allow access to the root directory, so others can get my site homepage by just entering the domain name of the machine. snip xxxxx <Directory "/"> DirectoryIndex karsites.hml Options None AllowOverride None Order Deny,Allow Allow from all </Directory> # remove the CONNECT bug # http://bugs.php.net/bug.php?id=19113 <Location /> <Limit CONNECT> Order deny,allow Deny from all </Limit> </Location> snip xxxxx # end of httpd.conf However, when I do karsites:/home/keith # telnet localhost 80 Trying ::1... telnet: connect to address ::1: Connection refused Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. CONNECT 127.0.0.1:80 HTTP/1.0 Without the fix to limit CONNECT, I get the raw source code from my DirectoryIndex page, karsites.hml With the patch applied to httpd.conf I get the following: HTTP/1.1 403 Forbidden Date: Sat, 28 Feb 2004 15:07:07 GMT Server: Apache/1.3.26 (Linux/SuSE) Connection: close Content-Type: text/html; charset=iso-8859-1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <HTML><HEAD> <TITLE>403 Forbidden</TITLE> </HEAD><BODY> <H1>Forbidden</H1> You don't have permission to access / on this server.<P> <HR> <ADDRESS>Apache/1.3.26 Server at <A HREF="mailto:keith@my-server.co.uk">my-server.co.uk</A> Port 80</ADDRESS> </BODY></HTML> Connection closed by foreign host. karsites:/home/keith # Which is just the source code for the Apache generated error message. The access_log now records the correct details - 127.0.0.1 - - [28/Feb/2004:15:34:27 +0000] "CONNECT 127.0.0.1:80 HTTP/1.0" 403 311 NB is it possible for an attacker to ftp to my machine, and use the above technique to download the source code of my web applications? Kind Regards - Keith Roberts

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Secure postfix against spammers
by Sneferu 28 Feb '04

28 Feb '04

Hi all, I have a suse I use as email server and I have noticed that it is used for sending spam. I am new to this so can you please point me to a tutorial/manual on how to secure it against this kind of problems? Thank you. --------------------------------------------------------------- Cauta-ti perechea pe http://dating.acasa.ro

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Kernel k_deflt-2.4.21-144.i586.rpm initrd-Problem...
by Security 28 Feb '04

28 Feb '04

Hi list, I'm new to linux. And I have a problem concerning the Kernel Patch. I just updated 2 SUSE Linux 9.0 Pro boxes with YOU which worked fine. They needed the athlon-Kernel. Then I was about to update another box which needed the default kernel. The download and installation of the RPMs worked fine, too. When I rebooted GRUB was loaded and made the output that initrd wasn''t found and Error 15 occured. Linux was of course unable to boot. I tried to do the kernel update manually with rpm -Uhv k_deflt-2.4.21-144.i586.rpm and got the output: Root device: /dev/hda6 (mounted on / as ext2) No initrd required Using grub, re-install of bootloader not required. When I go into /boot there is an initrd-file which is marked red and links to a initrd-2.4.21-144-default which isn't found. When I try to mkinitrd I get the same output as above (no initrd required). Could somebody help me please? I hope this is posted right here in the security issues... Thanx-a-lot Marius

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Kernal patch
by John Andersen 28 Feb '04

28 Feb '04

On or about Wed 18 Feb 2004 23:18:41 Thomas Biege <thomas(a)suse.de> announced here (on this list) that there was a kernal patch available and this patch specifically mentioned this source for SuSE 8.1 > ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/k_psmp-2.4.21-189.i586… That patch was auto-applied by YOU on one of my production servers (a dual PII with a software raid on a dual IDE card and which boots from a SCSI drive (aic7xxx). At the time I reported that the patch idendified itself as for an athlon, and I wondered if it was safe to boot that machine with this kernel 189. Yesterday, I got around to finding out. It was NOT safe. It would NOT boot, it kept getting dma timeouts and lost interrupts on one of the ide drives (which were part of the raid 1 array, not the boot drive). I also discovered that booting with the DVD from the boxed set offers no way automated to downgrade the kernel. I was able to boot in rescue mode, mount the /root drive (scsi) and copy the rpms for the older kernel to that drive. Then by physically removing all other drives/controllers except the scsi root drive, I was able to get it to boot and manually install the older kernal rpms for 2.4.19-4GB-SMP. (After pounding on grub for each boot to tell him which drives things were located upon, and manually rebuilding /boot, and a great deal of other hacking). This took the better part of a whole day but I lost no data in the end. Needless to say I'm in no hurry to upgrade to 189 again. There was no hardware error, the 189 kernel simply did not work with this combination, or it was indeed an athlon kernal as it reported itself to be. Would an athlon kernel even boot on a dual Pii machine? Someone reported here that the "athlon thingie" was fixed in the 8.1 smp kernels a day or two later. Was that "thingie" merly cosmetic as was aledged? Are thare other problems with this 189 kernel for 8.1 that have come to light since the announcement? -- _____________________________________ John Andersen

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access via SSH
by Richard Farla 28 Feb '04

28 Feb '04

Greetings, After upgrade from 8.0 to 8.2 I have problems accessing my system with SSH. >From the box to another system theire is no problem, but from other linux-boxes or windows (using Putty) I cannot access it anymore. The firewall is on, also services allowed is SSH and I also tell firewall to accept tru port 22. I read a lot of info and went tru some conf files but I do not know where the problems is located exactly Richard

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Re: [suse-security] Strange entry in Apache log
by Keith Roberts 27 Feb '04

27 Feb '04

Hi Arjen. On Fri, 27 Feb 2004, Arjen Runsink wrote: > This has nothing to do with your smtp port > > They scanned for open proxies and tried if your apache would allow to proxy. > The trick is that even smtp connections can be proxied over a web proxy. > > Just make sure this is not possible with your apache > so check error_log for confirmation this failed. Whoops! that got deleted about 15 mins ago! I have just check my httpd.conf file and the proxy_module is not loaded. # LoadModule digest_module /usr/lib/apache/mod_digest.so # LoadModule proxy_module /usr/lib/apache/libproxy.so # LoadModule cern_meta_module /usr/lib/apache/mod_cern_meta.so # AddModule mod_digest.c # AddModule mod_proxy.c # AddModule mod_cern_meta.c I take it it is OK not having mod_proxy installed. Thankyou for the explaination. Kind Regards - Keith Roberts

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Strange entry in Apache log
by Keith Roberts 27 Feb '04

27 Feb '04

Hi everyone. Can anyone tell what the following apache logs are? The last line looks like they managed to connect to port 25. Or did someone get my machine to connect to another servers port 25? 220.163.27.187 - - [27/Feb/2004:16:00:48 +0000] "\x04\x01" 200 0 "-" "-" 220.163.27.187 - - [27/Feb/2004:16:01:40 +0000] "\x05\x01" 200 0 "-" "-" 220.163.27.187 - - [27/Feb/2004:16:01:51 +0000] "CONNECT 207.217.125.22:25 HTTP/1.1" 200 5664 "-" "-" I have just been to grc.com, and my SMTP port is stealthed. Here is a listing of netstat keith@myserver:~> netstat -lt Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 *:printer *:* LISTEN tcp 0 0 *:www-http *:* LISTEN tcp 0 0 *:afs3-fileserver *:* LISTEN tcp 0 0 localhost:smtp *:* LISTEN Anyone have any ideas? Kind Regards - Keith Roberts

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SUSE Security Announcement: xf86/XFree86 (SuSE-SA:2004:006)
by thomas＠suse.de 27 Feb '04

27 Feb '04

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: xf86/XFree86 Announcement-ID: SuSE-SA:2004:006 Date: Monday, Feb. 23th 2004 16:30 MET Affected products: 8.0, 8.1, 8.2, 9.0 SuSE Linux Database Server, SuSE eMail Server III, 3.1 SuSE Linux Enterprise Server 7, 8 SuSE Linux Firewall on CD/Admin host SuSE Linux Connectivity Server SuSE Linux Office Server Vulnerability Type: local privilege escalation Severity (1-10): 5 SUSE default package: yes Cross References: CAN-2004-0083 CAN-2004-0084 CAN-2004-0106 Content of this advisory: 1) security vulnerability resolved: - several local buffer overflows in fontfile code problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: - mutt - mod_python - mailman - metamail - libxml2 - lbreakout - pwlib 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information XFree86 is an open-source X Window System implementation that acts as a client-server-based API between different hardware components like display, mouse, keyboard and so on. Several buffer overflows were found in the fontfile code that handles a user-supplied "fonts.alias" file. The file is processed with root privileges and therefore a successful exploitation of these bugs leads to local root access. There is no known workaround. Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, to apply the update use the command "rpm -Fhv file.rpm". Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web. Intel i386 Platform: SuSE-9.0: ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/XFree86-4.3.0.1-46.i58… dcaadc2b9438995c9a3ac6e4fc7bf181 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/XFree86-4.3.0.1-46.i58… f094861c9a0fbb5f27d168b680fe1a5b source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/XFree86-4.3.0.1-46.src.… 824c6173693342a033f75c503592e7e0 SuSE-8.2: ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/XFree86-4.3.0-120.i586… f1f01280e6e8a5a2f091a04c5836a51d patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/XFree86-4.3.0-120.i586… 16ba90ef0ad607d1547cda7734b28750 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/XFree86-4.3.0-120.src.r… 4100735436d4c8801c6add673fceb29e SuSE-8.1: ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/xf86-4.2.0-257.i586.rpm 9ed1fc5ec83a42a85315391387610e6b patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/xf86-4.2.0-257.i586.pa… 9652732385f8670ea9d36151378b7428 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/xf86-4.2.0-257.src.rpm e1d73191d2aabe3a6dda677e6fd716bc SuSE-8.0: ftp://ftp.suse.com/pub/suse/i386/update/8.0/x1/xf86-4.2.0-257.i386.rpm 9b69aac017a0ac9905e3fc4e9594d435 patch rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/x1/xf86-4.2.0-257.i386.patch.rpm 3076136bcdf20132f343768e4a71c7a2 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/xf86-4.2.0-257.src.rpm 1775eef155f4afdc9a3a08ff31a38607 Opteron x86_64 Platform: SuSE-9.0: ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/XFree86-4.3.0.1-52… 1714cb2eb566fab0e29277db9f9d2572 patch rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/XFree86-4.3.0.1-52… 930944efc868b28d87a69a9543206546 source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/XFree86-4.3.0.1-52.sr… ee67773fcad341912b617d397991ed32 ______________________________________________________________________________ 2) Pending vulnerabilities in SUSE Distributions and Workarounds: - mutt The popular email client mutt is vulnerable to a remote denial-of-service attack and maybe remote command execution. The bug can be triggered by malformed messages that overflow an internal buffer. New packages are available on our FTP servers.. - mod_python A remote denial-of-service attack can be triggered against the Apache web server by sending a specific query string that is processed by mod_python. New packages will be available soon. - mutt The popular email client mutt is vulnerable to a remote denial-of-service attack and maybe remote command execution. The bug can be triggered by malformed messages that overflow an internal buffer. New packages are available on our FTP servers.. - mailman A remote denial-of-service attack can be triggered in mailman 2.0.x (CAN-2003-0991). New packages will be available soon. - metamail This update fixes two buffer overflows and two format string bugs that can be exploited remotely in conjunction with other tools to gain access to a system with the privileges of the user running New packages will be available soon. - libxml2 A buffer overflow in the URI parsing cde is fixed. This bug can lead to remote access to a system using libxml2. New packages will be available soon. - lbreakout A buffer overflow in lbreakout can be exploited locally to gain access to group 'game'. This just affects SuSE Linux 8.1. New packages will be available soon. - pwlib This update addresses several security vulnerabilities that may be exploited remotely via applications that link with pwlib, like GnomeMeeting or alike. New packages will be available soon. ______________________________________________________________________________ 3) 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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SuSE Firewall2 ? same as pro9 firewall2?
by Mike Partyka 27 Feb '04

27 Feb '04

Could someone please explain a little more about the suse firewall2 product? I purchased SuSE Linux Pro 9.0 and it has a firewall2 with it. Is that the same as the SuSE firewall2 product I've seen advertised on the SuSE website? I see there is also a VPN module that can be purchased is this somewhere with my distribution so I could try it out? If not, any way an evaluation can be gotten? I've looked on their site but there's realy not mich info about the firewall2 product. Thanks in Advance Mike

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Re: [suse-security] SUSE Security Announcement: Linux Kernel (SuSE-SA:2004:005)
by Fred Merritt 27 Feb '04

27 Feb '04

Hi, can anyone at SuSE give us an update as to when the 8.0 kernels will be available. They have been promised a few times for 'tomorrow', but so far nothing has materialised. I believe that it's only a few days now till the exploit is released. TIA, and best regards. . . Fred

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Kernel Patch
by Gero Schmidt-Kärst 26 Feb '04

26 Feb '04

Hi ! I'm going to setup a new Server with SuSE 9.0. Since it had been published there was several Kernel patches. My stupid question is: Do I have to install all of them or is only the last necessary ? Thanks for help GSK

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Re: [suse-security] UML as security layer and for server consolidation
by Paranoiac_User 25 Feb '04

25 Feb '04

> Hello, > > maybe the vserver soulution is better than uml -> > Take a look at: http://www.13thfloor.at/vserver/project/ > > Good Luck Without blaming you too much, but this is a typical "dunno much about your question, but try this instead" anwser, that does not help very much, simply because the same question has to be asked under this new circumstances. You wrote nothing on the security impact/improvements of your suggestion. BTW: The project seems to have some problems: snip ---- As the project is undergoing a change of leadership and re-organisation there are still several other sites maintained by individuals. It is intended that in the future this site will become the central respository of information and coordination. To that end, all current developers and interested individuals are invited to contribute to these pages. ---- snap Michael

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pam_limit.so question
by Philippe Vogel 24 Feb '04

24 Feb '04

Hello! I want to restrict user rights but give users ssh access. The users may use ssh, scp, sftp, but should not alter the server, if someone doesn't know much about scripting and for securing the server to possible kiddies with console-account. I setup following: /etc/security/limits.conf @admin - @users hard priority 17 @users hard maxlogins 2 @users hard core 0 @users hard cpu 10 @users hard data 8196 @users hard fsize 8196 @users hard memlock 2048 @users hard nofile 64 @users hard nproc 8 @users hard rss 8196 @users hard stack 2048 @users hard as 16384 What setting is needed, what settings are O.K. and what makes working impossibles canot be found in the manpage. Is there a possibility to secure the server, that users in group users cannot open socket without a kernel-patch? Any hints? Philippe

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Can a Suse box be a proxy gateway and a DNS server at the same time??
by Joao M.C. Alvega 24 Feb '04

24 Feb '04

Hello, i'm having some problems. Does anyone know if it's possible to make a Bind to work in the same machine as Squid? If so could anyone explain me how? Here bind will work as a DNS Server(master) and not a cache. thank you very munch for any help tha may come!

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SuSE 8.0 kernels approved
by Thomas Biege 24 Feb '04

24 Feb '04

Hi, I approved the 8.0 kernels a few minutes ago. You can expect them within the next half hour on our mirrors. Bye, Thomas -- Thomas Biege <thomas(a)suse.de>, SUSE LINUX AG, Security Support & Auditing -- # If you have the "driftnet" program installed, webcollage can display a # collage of images sniffed off your local ethernet, instead of pulled out # of search engines: in that way, your screensaver can display the images # that your co-workers are downloading! -- xscreensaver source-code

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RE: [suse-security] access via SSH
by sematin＠mtn.co.ug 24 Feb '04

24 Feb '04

> This is > confermed to be open using nmap > scanning localhost (127.0.0.1) > > Looking in /var/log/messages I notice that the boxes that > want to gain access > will be DROPPED by SuSE FW. Perhaps you shouldn't scan on the localhost itself but from a remote machine :-) Noah.

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Online_update
by Ness, Todd 24 Feb '04

24 Feb '04

I am trying to make a patch to install an update on my set of suse 8.1 machines from my local update server. I have made a build-key for myself, I have added it to /usr/lib/rpm/gnupg/pubring.gpg I have signed the patch file and the rpm with this build key. When I run online update I get this error... jdsai:~ # online_update -s Types of patches to be installed: security recommended Product: Java Desktop Version: 2003 Architecture: i386 Language: de URL: nfs://192.168.1.104/tftpboot/updates Path: ./i386/update/Java-Desktop/2003/patches Error retrieving patches: ERROR(InstSrc:error) Here is my patch file: jdsai:/tmp # cat /root/COE-vc-patch.asc -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ## ## Patch description of patch coe version checker Kind: security Shortdescription.english: EDS COE Version check Longdescription.english: Provides the ability to check what base version and patched version the machine is at. Size: 5101 UpdateOnlyInstalled: false Postscript: Packages: ## ## -----> coe-version-check <----- ## Filename: coe-version-check.rpm Series: noarch Label: coe-version-check Size: 5101 6536 RpmGroup: System/Packages Copyright: EDS Version: 1.0.0b Requires: gtk sh-utils fileutils rpmlib -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQFANqpqMDPDHXXSOZARAqmAAKCIf5IK8IpbzBmHWOw+mY0bB3/AUgCggRDO tJjmyYWG8ByloXDsN4oByAc= =rBm0 -----END PGP SIGNATURE----- If I strip off the suse build signature and resign with my signature those patch files work fine. Does anybody have any clues? Todd Ness EDS - Platform Infrastructure Engineering Phone:+1-303-255-4530 mobile : 303-263-2589 pager mail: nessts(a)vtext.com

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RE: [suse-security] Can a Suse box be a proxy gateway and a DNSserver at the same time??
by sematin＠mtn.co.ug 24 Feb '04

24 Feb '04

What setting are you changing? What makes you think that it is this setting that affects the said services? Incidentally dns takes very little resources both in terms of memory and processor so that shouldn't be a big consideration at this point. You can run multiple services all on the same box like mail, squid, dns, http etc. Noah. > -----Original Message----- > From: Joao M.C. Alvega [mailto:JSuse@netcabo.pt] > Sent: 24 February 2004 22:05 > To: suse-security(a)suse.com > Subject: Re: [suse-security] Can a Suse box be a proxy > gateway and a DNSserver at the same time?? > > > The problem is this, for me to have the Dns working i need to > change a setting in /etc/sysconfig/network/sysconfig from > "yes" to "no" and that makes squid work or dns Server not > both at the same time! and yes 1 Ghz in my small network is i > think that's enought! because thet setting allows the > resolv.conf file to be writen or not. i'm new at linux so > ther are something that i dont undertstand very well! > > On Mon, 2004-02-23 at 18:43, Dana Hudes wrote: > > They're different programs responding on different ports to > different > > protocols. If you have enough processor power and RAM, I > see no reason why > > not. > > On Tue, 24 Feb 2004, Joao M.C. Alvega wrote: > > > > > Hello, i'm having some problems. > > > Does anyone know if it's possible to make a Bind to work > in the same > > > machine as Squid? If so could anyone explain me how? Here > bind will > > > work as a DNS Server(master) and not a cache. > > > > > > thank you very munch for any help tha may come! > > > > > > > > > > > > -- > 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

SuSEfirewall2 Anti SPOOFING
by Stephen Prendergast 24 Feb '04

24 Feb '04

Guys I've got myself a little confused over some issues I'm having on this and despite reading Togan's primer don't seem to be winning. ADSL router -10.10.99.1 | DHCP , DNS | eth1 10.10.99.5 | ssh | eth0 10.10.200.254 | squid, squidguard, internal http | rest of Lan SuSEfirewall2 FW_ALLOW_INCOMING_HIGHPORTS_TCP="no" FW_ALLOW_INCOMING_HIGHPORTS_UDP="DNS domain" Logs I get the following when the firewall has been started and the browsers hang - squid trying for dns resolution I suspect Feb 24 17:57:37 localhost kernel: SuSE-FW-DROP-ANTI-SPOOF IN=eth1 OUT= MAC=00:80:ad:8e:f9:64:00:d0:41:0e:92:1f:08:00 SRC=10.10.99.1 DST=10.10.99.5 LEN=148 TOS=0x00 PREC=0x00 TTL=64 ID=51956 PROTO=UDP SPT=53 DPT=1052 LEN=128 Squid is setup to use the nameserver from resolv.conf as 10.10.99.1 as provided by dhcp. Does this indicate I should provide a local dns rather than pass through the firewall ? Cheers, all help warmly appreciated. -- Stephen Prendergast SP Software Ltd 07 570 1452 021 466 247

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