______________________________________________________________________________ SuSE Security Announcement Package: webalizer Announcement-ID: SuSE-SA:2001:040 Date: Tuesday, Nov 06th, 2001 12.00 MET Affected SuSE versions: 7.1, 7.2, 7.3 Vulnerability Type: remote privilege escalation (cross-site scripting) Severity (1-10): 5 SuSE default package: no Other affected systems: all linux-like systems using this version of webalizer Content of this advisory: 1) security vulnerability resolved: webalizer problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information) ______________________________________________________________________________ 1) problem description, brief discussion, solution, upgrade information The webalizer is a widely used tool for analyzing web server logs and produce statistics in HTML format. An exploitable bug was found in webalizer which allows a remote attacker to execute commands on other client machines or revealing sensitive information by placing HTML tags in the right place. This is possible due to missing sanity checks on untrusted data - hostnames and search keywords in this case - that are received by webalizer. This kind of attack is also known as "Cross-Site Scripting Vulnerability". Additionally the untrusted data will be written to files on the server running webalizer; this may lead to further problems when using this data as input for third-party software/scripts. There is no known temporary fix, so please update your system with the new RPMs from our FTP server. Download the update package from locations described below and install the package with the command: rpm -Uhv file.rpm The md5sum for each file is in the line below. You can verify the integrity of the rpm files using the command: rpm --checksig --nogpg file.rpm independently from the md5 signatures below. i386 Intel Platform: SuSE-7.3 ftp://ftp.suse.com/pub/suse/i386/update/7.3/n2/webalizer-2.01.06-140.i386.rpm 3525fd6ab9c27be34edad9bef05ff061 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/webalizer-2.01.06-140.src.rpm 898d975f34991a02f02da603b6bcd529 SuSE-7.2 ftp://ftp.suse.com/pub/suse/i386/update/7.2/n2/webalizer-2.01.06-139.i386.rpm 593a7f033158f57bac47cf2fa9cb83bc source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/webalizer-2.01.06-139.src.rpm 70ceb86a0373070a06f6d39ec0bc4377 SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/webalizer-2.01.06-139.i386.rpm 74288622703dec120b18c0fbb5003917 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/webalizer-2.01.06-139.src.rpm 213f7a394052dc193be05a882768054a Sparc Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/n2/webalizer-2.01.06-54.sparc.rpm 5aa3b7511d704415498fbec3bfc2ccd5 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/webalizer-2.01.06-54.src.rpm 792efab485712286fc848234b1aa249d AXP Alpha Platform: SuSE-7.1 ftp://ftp.suse.com/pub/suse/axp/update/7.1/n2/webalizer-2.01.06-49.alpha.rpm aa93070e8358b1cfd91b7fabffbfa985 source rpm: ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/webalizer-2.01.06-49.src.rpm 2065dd78c3f8147a94f97994fb37e6ce PPC Power PC Platform: SuSE-7.3 ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n2/webalizer-2.01.06-72.ppc.rpm cc28460b1d6fac8f87cc4658fae45d3e source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/webalizer-2.01.06-72.src.rpm 7d7cec18f488f97187338723b0151426 SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n2/webalizer-2.01.06-70.ppc.rpm 3630f538b0445ee462b73475b488b146 source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/webalizer-2.01.06-70.src.rpm 4c998066d5eb545bb1551e246f2724c1 ______________________________________________________________________________ 2) Pending vulnerabilities in SuSE Distributions and Workarounds: - openssh After stabilizing the openssh package, updates for the distributions 6.4-7.2 are currently being prepared. The update packages fix a security problem related to the recently discovered problems with source ip based access restrictions in a user's ~/.ssh/authorized_keys2 file. The packages will appear shortly on our ftp servers. Please note that packages for the distributions 6.3 and up including 7.0 containing cryptographic software are located on the German ftp server ftp.suse.de, all other packages can be found on ftp.suse.com at the usual location. We will issue a dedicated Security announcement for the openssh package. - nvi Takeshi Uno found a format tag vulnerability in all versions of nvi. The bug will be fixed in future version of SuSE Linux. - Please watch out for more announcements that are currently in our queue. ______________________________________________________________________________ 3) standard appendix: SuSE runs two security mailing lists to which any interested party may subscribe: [email protected] - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to <[email protected]>. [email protected] - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to <[email protected]>. For general information or the frequently asked questions (faq) send mail to: <[email protected]> or <[email protected]> respectively. =============================================== SuSE's security contact is <[email protected]>. =============================================== ______________________________________________________________________________ The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory.