February 2005 - openSUSE Security - openSUSE Mailing Lists

Security enhancements with Chrooted Apache?
by Kai Pfeiffer 16 Feb '05

16 Feb '05

Hello list, I compiled Apache 2.xx with PHP5 from the sources into a chroot environment. The only executables in this chroot-cage is bash and the apache-daemon. Only the necessary libs are in the cage. The hole chroot-tree is on an iso-image and only the partitiones needed for var and tmp mounted noexec. I want to know if there are any worries about this configuration. e.g. could anybody escape out of this cage, if he cracked apache? Thanx Kai

3 5

SUSE Security Announcement: kernel local privilege escalation (SUSE-SA:2005:003)
by Marcus Meissner 16 Feb '05

16 Feb '05

-----BEGIN PGP SIGNED MESSAGE----- ______________________________________________________________________________ SUSE Security Announcement Package: kernel Announcement-ID: SUSE-SA:2005:003 Date: Friday, Jan 21st 2005 16:00 MET Affected products: 8.1, 8.2, 9.0, 9.1, 9.2 SUSE Linux Enterprise Server 8, 9 SUSE Linux Desktop 1.0 Novell Linux Desktop 9 Vulnerability Type: local privilege escalation Severity (1-10): 7 SUSE default package: yes Cross References: CAN-2004-1235 CAN-2005-0001 Content of this advisory: 1) security vulnerability resolved: - local privilege escalation - local denial of service attacks problem description 2) solution/workaround 3) special instructions and notes 4) package location and checksums 5) pending vulnerabilities, solutions, workarounds: - see summary report 6) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion Several exploitable security problems were identified and fixed in the Linux kernel, the core of every SUSE Linux product. - Due to missing locking in the sys_uselib system call a local attacker can gain root access. This was found by Paul Starzetz and is tracked by the Mitre CVE ID CAN-2004-1235. - Paul Starzetz also found a race condition in SMP page table handling which could lead to a local attacker gaining root access on SMP machines. This is tracked by the Mitre CVE ID CAN-2005-0001. - A local denial of service was found in the auditing subsystem which have lead a local attacker crashing the machine. This was reported and fixed by Redhat. - The sendmsg / cmsg fix from the previous kernel update was faulty on 64bit systems with 32bit compatibility layer and could lead to 32bit applications not working correctly on those 64bit systems. - The smbfs security fixes from a before-previous kernel update were faulty for some file write cases. - A local denial of service with Direct I/O access to NFS file systems could lead a local attacker to crash a machine with NFS mounts. - grsecurity reported a signed integer problem in the SCSI ioctl handling which had a missing boundary check. Due to C language specifics, this evaluation was not correct and there actually is no problem in this code. The signed / unsigned mismatch was fixed nevertheless. - Several more small non security problems were fixed. NOTE: Two days ago we released the Service Pack 1 for the SUSE Linux Enterprise Server 9. This kernel update contains fixes for the SUSE Linux Enterprise Server 9 GA version kernel line. A fix for the Service Pack 1 version line will be available shortly. 2) solution/workaround There is no workaround. Please install the provided update packages. 3) special instructions and notes SPECIAL INSTALL INSTRUCTIONS: ============================== The following paragraphs will guide you through the installation process in a step-by-step fashion. The character sequence "****" marks the beginning of a new paragraph. In some cases, the steps outlined in a particular paragraph may or may not be applicable to your situation. Therefore, please make sure to read through all of the steps below before attempting any of these procedures. All of the commands that need to be executed are required to be run as the superuser (root). Each step relies on the steps before it to complete successfully. **** Step 1: Determine the needed kernel type Please use the following command to find the kernel type that is installed on your system: rpm -qf /boot/vmlinuz Following are the possible kernel types (disregard the version and build number following the name separated by the "-" character) k_deflt # default kernel, good for most systems. k_i386 # kernel for older processors and chip sets k_athlon # kernel made specifically for AMD Athlon(tm) family processors k_psmp # kernel for Pentium-I dual processor systems k_smp # kernel for SMP systems (Pentium-II and above) k_smp4G # kernel for SMP systems which supports a maximum of 4G of RAM kernel-64k-pagesize kernel-bigsmp kernel-default kernel-smp **** Step 2: Download the package for your system Please download the kernel RPM package for your distribution with the name as indicated by Step 1. The list of all kernel rpm packages is appended below. Note: The kernel-source package does not contain a binary kernel in bootable form. Instead, it contains the sources that the binary kernel rpm packages are created from. It can be used by administrators who have decided to build their own kernel. Since the kernel-source.rpm is an installable (compiled) package that contains sources for the linux kernel, it is not the source RPM for the kernel RPM binary packages. The kernel RPM binary packages for the distributions can be found at the locations below ftp://ftp.suse.com/pub/suse/i386/update/. 8.1/rpm/i586 8.2/rpm/i586 9.0/rpm/i586 9.1/rpm/i586 9.2/rpm/i586 After downloading the kernel RPM package for your system, you should verify the authenticity of the kernel rpm package using the methods as listed in section 3) of each SUSE Security Announcement. **** Step 3: Installing your kernel rpm package Install the rpm package that you have downloaded in Steps 3 or 4 with the command rpm -Uhv --nodeps --force <K_FILE.RPM> where <K_FILE.RPM> is the name of the rpm package that you downloaded. Warning: After performing this step, your system will likely not be able to boot if the following steps have not been fully followed. If you run SUSE LINUX 8.1 and haven't applied the kernel update (SUSE-SA:2003:034), AND you are using the freeswan package, you also need to update the freeswan rpm as a dependency as offered by YOU (YaST Online Update). The package can be downloaded from ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/ **** Step 4: configuring and creating the initrd The initrd is a ramdisk that is loaded into the memory of your system together with the kernel boot image by the bootloader. The kernel uses the content of this ramdisk to execute commands that must be run before the kernel can mount its actual root filesystem. It is usually used to initialize SCSI drivers or NIC drivers for diskless operation. The variable INITRD_MODULES in /etc/sysconfig/kernel determines which kernel modules will be loaded in the initrd before the kernel has mounted its actual root filesystem. The variable should contain your SCSI adapter (if any) or filesystem driver modules. With the installation of the new kernel, the initrd has to be re-packed with the update kernel modules. Please run the command mk_initrd as root to create a new init ramdisk (initrd) for your system. On SuSE Linux 8.1 and later, this is done automatically when the RPM is installed. **** Step 5: bootloader If you run a SUSE LINUX 8.x, SLES8, or SUSE LINUX 9.x system, there are two options: Depending on your software configuration, you have either the lilo bootloader or the grub bootloader installed and initialized on your system. The grub bootloader does not require any further actions to be performed after the new kernel images have been moved in place by the rpm Update command. If you have a lilo bootloader installed and initialized, then the lilo program must be run as root. Use the command grep LOADER_TYPE /etc/sysconfig/bootloader to find out which boot loader is configured. If it is lilo, then you must run the lilo command as root. If grub is listed, then your system does not require any bootloader initialization. Warning: An improperly installed bootloader may render your system unbootable. **** Step 6: reboot If all of the steps above have been successfully completed on your system, then the new kernel including the kernel modules and the initrd should be ready to boot. The system needs to be rebooted for the changes to become active. Please make sure that all steps have completed, then reboot using the command shutdown -r now or init 6 Your system should now shut down and reboot with the new kernel. 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 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/kernel-source-2.6.8-24… e335f4e401034f79bce9bcef3b6c19e0 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/kernel-bigsmp-2.6.8-24… 848b85f02abd3d2877b04f10aa875689 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/kernel-smp-2.6.8-24.11… f103cd395e9d6e4418cb8cf91c09147d ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/kernel-default-2.6.8-2… 374dc207a2b3e81e04cdad2e3d6c0333 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/kernel-um-2.6.8-24.11.… 379085daf7dc1e1df0ce5c246c26caf4 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/kernel-source-2.6.8-24.… bbfdc289c2d1f1a73ac6fa759ecfaf87 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/kernel-bigsmp-2.6.8-24.… c999bd4ff601c34edc6322fc43caf1a5 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/kernel-smp-2.6.8-24.11.… 9539d6093144fbbd066681f61c9aa07d ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/kernel-default-2.6.8-24… eeeebf4ea4942f6093b56f7a3d7a7de3 ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/kernel-um-2.6.8-24.11.n… 93953b908c54f19d4d30816b4eae2dc9 SUSE Linux 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-source-2.6.5-7.… b84574947de5c47a2bcca43525e1fc4d ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-bigsmp-2.6.5-7.… 5346f03accd80530ef1dd870a069dc11 ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-smp-2.6.5-7.111… dba08e4e49dbf1f32988152956448ab3 ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-default-2.6.5-7… 231eb3350db6a02b621731790f3b6d37 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/kernel-source-2.6.5-7.1… 8cd984fa2f4607ff75b0ff79a82090e0 ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/kernel-bigsmp-2.6.5-7.1… a64279aae3382a1647f594e59ea321fe ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/kernel-smp-2.6.5-7.111.… 653925384a7e887fb59b58a432a86968 ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/kernel-default-2.6.5-7.… f01bbb3541bb8197c36757c9ac554ba9 SUSE Linux 9.0: ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/kernel-source-2.4.21-2… c577564f2588a0f23b2bdf6c53622c88 ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/k_deflt-2.4.21-273.i58… e1826b653a6dc121bc09af292469ca60 ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/k_athlon-2.4.21-273.i5… 4f6f2c3181e9ffa3665b078b56263b5f ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/k_smp-2.4.21-273.i586.… 93d0f1ac7d07d8965fd995755ced96d8 ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/k_smp4G-2.4.21-273.i58… dc55afa79f48b332802fcf8c957f4fb1 ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/k_um-2.4.21-273.i586.r… aafbe34c9623ed1558cba1334d9cefb2 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/kernel-source-2.4.21-27… 23d2ec2beb60fe87971679ffcd7aa43b ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/k_deflt-2.4.21-273.src.… d4570f75c0706913ab28ab591669a09f ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/k_athlon-2.4.21-273.src… 5c9f06dab451c493ea3805c7c25b5e0e ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/k_smp-2.4.21-273.src.rpm 4f9d9932f848a81681d97b2121b95cfc ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/k_smp4G-2.4.21-273.src.… 595c9d12751dc3ed7911a0c839aa3798 ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/k_um-2.4.21-273.src.rpm 3d2030e1fe01309363a62269544d4ecf SUSE Linux 8.2: ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/kernel-source-2.4.20.S… 5929f89029262db0f26f7839cae0144c ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/k_deflt-2.4.20-129.i58… 1287e9445cf09947056f8330fad24417 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/k_athlon-2.4.20-129.i5… 9e69c44a2d13d57388272f1991e2c549 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/k_smp-2.4.20-129.i586.… 345fdb85a6e39f15cd37cecafc8af4c5 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/k_psmp-2.4.20-129.i586… 0964a18c464c9fd905b8c1efa2cd5ba1 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/kernel-source-2.4.20.Su… 38e1780995f9b8463bb80d8337e9447a ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/k_deflt-2.4.20-129.src.… 449c13bd8b922c45233df240bb4b02ad ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/k_athlon-2.4.20-129.src… 05ab0427675e9aba88460e016dbbd601 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/k_smp-2.4.20-129.src.rpm 86c6b0ae5616e0a72396fb19b3fbf172 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/k_psmp-2.4.20-129.src.r… eb488e7c3169936131ff6bac76862fb4 SUSE Linux 8.1: ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/kernel-source-2.4.21-2… d2c2fae409431dc9380b1e230359ed56 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/k_deflt-2.4.21-273.i58… 503e57660b3b5f6c1eadf60a54e90508 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/k_athlon-2.4.21-273.i5… 2c5a8cb80db649a50fc64a6a37dd0230 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/k_smp-2.4.21-273.i586.… 14b2e9a7783986b9293f0561729a5216 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/k_psmp-2.4.21-273.i586… 36930ea9a97e420b67137143bc3fbd06 source rpm(s): ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/kernel-source-2.4.21-27… 70862f0bae01c0003b3cd48c9161c137 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/k_deflt-2.4.21-273.src.… ef2e870d10237d85d3be66a12371cfe2 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/k_athlon-2.4.21-273.src… 87551521c8e569351d47d9c0e097550b ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/k_smp-2.4.21-273.src.rpm 5062c220dd0ebe012e9f2f71137458ea ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/k_psmp-2.4.21-273.src.r… f6e881395e1d069e2dee910cdb311964 x86-64 Platform: SUSE Linux 9.2: ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/x86_64/kernel-source-2.6.… d8d5dfd431c9b989195f94d3d3c1ea64 ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/x86_64/kernel-smp-2.6.8-2… 3a16e2109a1dbf177500430213e45b69 ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/x86_64/kernel-default-2.6… 51213878a7116455b9443688d0b39aa0 source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/src/kernel-source-2.6.8-2… bbfdc289c2d1f1a73ac6fa759ecfaf87 ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/src/kernel-smp-2.6.8-24.1… 9539d6093144fbbd066681f61c9aa07d ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/src/kernel-default-2.6.8-… eeeebf4ea4942f6093b56f7a3d7a7de3 SUSE Linux 9.1: ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/kernel-source-2.6.… 44996d9e1da1df537cb1b2100553d2af ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/kernel-smp-2.6.5-7… 11ad693478569dd691d237679328bd1b ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/kernel-default-2.6… deaeb48a6815587535b1adddf68131ef source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/kernel-source-2.6.5-7… fdef7eaed76e07a85ebbba9323b64f8d ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/kernel-smp-2.6.5-7.11… 3605a6f50f0d799c73849cb382d786ac ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/kernel-default-2.6.5-… d0410d0e5c32cd44bae3da7b42cac23a SUSE Linux 9.0: ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/kernel-source-2.4.… ed6c099957a83fc87abd74e3549e9799 ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/k_deflt-2.4.21-273… 18226b51d911e09cd83657c99dd4506f ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/k_smp-2.4.21-273.x… 0489274cc30666eeec2be0127a669530 source rpm(s): ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/kernel-source-2.4.21-… 792149722a14f021aa095ec4fcc33976 ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/k_deflt-2.4.21-273.sr… 9279c9a0613473a71057e76ab4b5a0e5 ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/k_smp-2.4.21-273.src.… 3bbd006852b9b8aab8a2868d922451d5 ______________________________________________________________________________ 5) pending vulnerabilities in SUSE Distributions and Workarounds: Please refer to our 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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Filter ActiveX
by Rasp, Robert 16 Feb '05

16 Feb '05

Hello, I'm looking for a filter witch is able to filter ActiveX, Java, Javascript and VB-Script. Most important is ActiveX to be filtered for me. If the rest is not possible, no problem. It must be able to configure pages where it is allowed to get ActiveX. Something like http://sites.inka.de/bigred/devel/squid-filter.html <http://sites.inka.de/bigred/devel/squid-filter.html> will be great. The Problem wit Squid-Filter is, that I'm not able to compile it :-( The Patch works and aclocal works too. "autoconf and "automake" fails with strange Errors.... "make" stops with an Error in "modules.c"... I hope somebody can help me Robert

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RE: [suse-security] PPTP Server on Suse Pro 9.1
by Célio Rodrigues 15 Feb '05

15 Feb '05

Hello again, I found that by mistake i have listed the ppp0 interface twice, one on the internal interface list and another in the external interface list....my BIG mistake...maybe SuSe will change the script in the future to detect duplicate declarations ;). Thanks to you all who have replied, Celio On Tue, 15 Feb 2005 20:02:26 +0100, Stefaan Margot wrote > Celio > > Try adding an entry proxyarp in /etc/ppp/options.pptp and try again. > Just put the word /etc/ppp/options.pptp in there > > S. > > -----Oorspronkelijk bericht----- > Van: Célio Rodrigues [mailto:rodriguescelio@netcabo.pt] > Verzonden: dinsdag 15 februari 2005 13:25 > Aan: suse-security(a)suse.com > Onderwerp: [suse-security] PPTP Server on Suse Pro 9.1 > > Hello All, > > I have setup the PPTP Server on Suse 9.1, after the connection is > established i can not > connect to other machines on the internal network > > this is the settings for localip and remoteip on the pptpd.conf > > localip 192.168.123.201-205 > remoteip 192.168.123.206-210 > > my internal network is 192.168.123/24 > > The connection appeard on ppp0 and i have setup this interface as internal > in SuseFirewall. > > Does anyone have experience with this? or have a working setup? > > Best Regards, > Celio > > -- > Celio Rodrigues > rodriguescelio(a)netcabo.pt > > -- > 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 -- Celio Rodrigues rodriguescelio(a)netcabo.pt

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Re: [suse-security] PPTP Server on Suse Pro 9.1
by Célio Rodrigues 15 Feb '05

15 Feb '05

Hello again, Thanks for your prompt reply, i have done what you have recommended, i can see now that the default gateway remains de same as before the connection takes place, i can ping the internal server ip address, but i can not ping an internal address on my lan...this is the message i got from the SuseFirewall. Feb 15 16:38:55 susempro kernel: SFW2-FWDext-DROP-DEFLT IN=ppp0 OUT=eth0 SRC=192.168.123.207 DST=192.168.123.2 LEN=60 TOS=0x00 PREC=0x00 TTL=127 ID=19348 PROT O=ICMP TYPE=8 CODE=0 ID=768 SEQ=2560 I have tried several diferent setting in SuseFirewall but i am unable to get trought. Best regards, Célio On Tue, 15 Feb 2005 15:43:04 +0100, ali wrote > hi, > please chek the opthion (use default gateway on remote network). > in your vpn TCP/IP properties and unactive that option. > > Regards > Ali > > On 15/2/2005, "CÃ©lio Rodrigues" <rodriguescelio(a)netcabo.pt> wrote: > > >Hello All, > > > > I have setup the PPTP Server on Suse 9.1, after the connection is established i can not > >connect to other machines on the internal network > > > >this is the settings for localip and remoteip on the pptpd.conf > > > >localip 192.168.123.201-205 > >remoteip 192.168.123.206-210 > > > >my internal network is 192.168.123/24 > > > >The connection appeard on ppp0 and i have setup this interface as internal in SuseFirewall. > > > >Does anyone have experience with this? or have a working setup? > > > >Best Regards, > >Celio > > > >-- > >Celio Rodrigues > >rodriguescelio(a)netcabo.pt > > > > > >-- > >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 -- Celio Rodrigues rodriguescelio(a)netcabo.pt

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RE: [suse-security] PPTP Server on Suse Pro 9.1
by Célio Rodrigues 15 Feb '05

15 Feb '05

Thanks for your reply, i am almost 100% shure that the problem is related with the firewall configuration, maybe i need to add some custom rules to it, you can see the FW-LOG on one of my previous message. This is my pptpd.conf(just removed the commented lines): ***start speed 115200 option /etc/ppp/options.pptp debug localip 192.168.123.201-205 remoteip 192.168.123.206-210 pidfile /var/run/pptpd.pid ****end this my options.pptp: ***start name server refuse-pap refuse-chap refuse-mschap require-mschap-v2 require-mppe-128 ms-dns 192.168.123.15 ms-wins 192.168.123.15 proxyarp debug dump lock nobsdcomp ***end My best regards, Celio On Tue, 15 Feb 2005 20:02:26 +0100, Stefaan Margot wrote > Celio > > Try adding an entry proxyarp in /etc/ppp/options.pptp and try again. > Just put the word /etc/ppp/options.pptp in there > > S. > > -----Oorspronkelijk bericht----- > Van: Célio Rodrigues [mailto:rodriguescelio@netcabo.pt] > Verzonden: dinsdag 15 februari 2005 13:25 > Aan: suse-security(a)suse.com > Onderwerp: [suse-security] PPTP Server on Suse Pro 9.1 > > Hello All, > > I have setup the PPTP Server on Suse 9.1, after the connection is > established i can not > connect to other machines on the internal network > > this is the settings for localip and remoteip on the pptpd.conf > > localip 192.168.123.201-205 > remoteip 192.168.123.206-210 > > my internal network is 192.168.123/24 > > The connection appeard on ppp0 and i have setup this interface as internal > in SuseFirewall. > > Does anyone have experience with this? or have a working setup? > > Best Regards, > Celio > > -- > Celio Rodrigues > rodriguescelio(a)netcabo.pt > > -- > 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 -- Celio Rodrigues rodriguescelio(a)netcabo.pt

1 0

reject outgoing packages...
by Markus Feilner 15 Feb '05

15 Feb '05

Hello List, one of my firewalls (SuSEfirewall2 including openvpn tunnel) is giving the following error message on start/restart: "Starting Firewall Initialization (phase 2 of 3) It's not possible to reject outgoing packets. Expect Timeouts." this seems funny to me, because i did not configure anything to reject outgoing packages. I have the following setup - what did i miss? thanks a lot! [eth2 is outside, eth1 is inside, tun0 is openvpn-tunnel] ----------------------------------------- FW_QUICKMODE="no" FW_DEV_EXT="eth2" FW_DEV_INT="eth1 tun0" FW_DEV_DMZ="" FW_ROUTE="yes" FW_MASQUERADE="no" FW_MASQ_DEV="" FW_MASQ_NETS="" FW_PROTECT_FROM_INTERNAL="yes" FW_AUTOPROTECT_SERVICES="yes" FW_SERVICES_EXT_TCP="ssh" FW_SERVICES_EXT_UDP="<our vpn-port>" FW_SERVICES_EXT_IP="" FW_SERVICES_DMZ_TCP="" FW_SERVICES_DMZ_UDP="" FW_SERVICES_DMZ_IP="" FW_SERVICES_INT_TCP="22 80 8080" FW_SERVICES_INT_UDP="53" FW_SERVICES_INT_IP="" FW_SERVICES_QUICK_TCP="" FW_SERVICES_QUICK_UDP="" FW_SERVICES_QUICK_IP="" FW_TRUSTED_NETS="" FW_ALLOW_INCOMING_HIGHPORTS_TCP="ftp-data" FW_ALLOW_INCOMING_HIGHPORTS_UDP="DNS" FW_SERVICE_AUTODETECT="yes" FW_SERVICE_DNS="yes" FW_SERVICE_DHCLIENT="no" FW_SERVICE_DHCPD="yes" FW_SERVICE_SQUID="no" FW_SERVICE_SAMBA="no" FW_FORWARD="<here are the routing directives for the vpn-connected lans>" FW_LOG_DROP_CRIT="no" FW_LOG_DROP_ALL="yes" FW_LOG_ACCEPT_CRIT="no" FW_LOG_ACCEPT_ALL="no" FW_LOG="--log-level warning --log-tcp-options --log-ip-option --log-prefix SuSE-FW" FW_KERNEL_SECURITY="no" FW_STOP_KEEP_ROUTING_STATE="no" FW_ALLOW_PING_FW="no" FW_ALLOW_PING_DMZ="no" FW_ALLOW_PING_EXT="yes" FW_ALLOW_FW_TRACEROUTE="no" FW_ALLOW_FW_SOURCEQUENCH="yes" FW_ALLOW_FW_BROADCAST="no" FW_IGNORE_FW_BROADCAST="yes" FW_ALLOW_CLASS_ROUTING="no" FW_REJECT="no" FW_HTB_TUNE_DEV="" ---------------------------------- (I have added lots of customrules, which are tested and do work, and the error appears independent from these rules, so left that out.) thanks a lot!! -- 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

2 2

PPTP Server on Suse Pro 9.1
by Célio Rodrigues 15 Feb '05

15 Feb '05

Hello All, I have setup the PPTP Server on Suse 9.1, after the connection is established i can not connect to other machines on the internal network this is the settings for localip and remoteip on the pptpd.conf localip 192.168.123.201-205 remoteip 192.168.123.206-210 my internal network is 192.168.123/24 The connection appeard on ppp0 and i have setup this interface as internal in SuseFirewall. Does anyone have experience with this? or have a working setup? Best Regards, Celio -- Celio Rodrigues rodriguescelio(a)netcabo.pt

1 0

Squid errors after update
by Togan Muftuoglu 15 Feb '05

15 Feb '05

Hi, After installing the Squid update via YOU on the 10th of Feb. I am getting errors like below Feb 12 19:06:20 shark squid[3092]: ctx: enter level 10602: '<lost>' Feb 12 19:06:20 shark squid[3092]: ctx: enter level 10603: '<lost>' Feb 12 19:06:20 shark squid[3092]: ctx: enter level 10604: '<lost>' Any ideas what's going on wrong ? -- Togan Muftuoglu | Unofficial SuSE FAQ Maintainer | Please reply to the list; http://susefaq.sf.net | Please don't put me in TO/CC. Nisi defectum, haud refiecendum

3 3

Re: [suse-security] web server lockdown
by Alex Hargrove 14 Feb '05

14 Feb '05

Cool, just what I was looking for! Also, is it better to install Apache + MySQL from the included SUSE RPMs, or download the respective tarballs and compile from source? Thanks again! >>> "Johannes B. Ullrich" <jullrich(a)euclidian.com> 02/14 9:44 AM >>> take a look at the CISecurity Linux and Apache benchmarks here: http://www.cisecurity.org/ They are a bit centric, but include a lot of good ideas you can transfer to SuSe. couple other related papers: http://www.giac.org/practical/GCUX/Randal_Warner_GCUX.pdf (RHAS 3, but its close enough to Suse... very much 'step by step' style paper) Alex Hargrove wrote: > Hi all- > > I'm wondering if anyone can share a "best practices" for setting up a > dedicated webserver running Apache 2.0 on SUSE Pr0 9.2, like proper > partitioning, lockdown, etc. I noticed an older doc referring to (I > think) SUSE 6.2 or 7 that's floating around out there, but obviously > that's kinda dated... I'm interested in what packages and services > should be installed, and which shouldn't (but are by default) for the > sake of security... stuff like that. > > Thanks! >

2 1