2.16.5, 2.17.7 Security Advisory July 10, 2004 Summary ======= Bugzilla is a Web-based bug-tracking system, used by a large number of software projects. This advisory covers security bugs that have recently been discovered and fixed in the Bugzilla code: In the stable 2.16 releases, one instance of arbitrary SQL injection exploitable only by a privileged user, several instances of insufficient data validation and/or escaping, and two instances of unprivileged access to names of restricted products. We know of no occasion where any of these vulnerabilities have been exploited. All Bugzilla installations are advised to upgrade to the latest stable version of Bugzilla, 2.16.6, which was released today. Development snapshots prior to version 2.18rc1 are also affected, so if you are using a development snapshot, you should obtain a newer one (2.18rc1) or use CVS to update. Vulnerability Details ===================== Issue 1 ------- Class: Database Password Compromise Versions: 2.17.1 through 2.17.7 (2.16-based releases are not affected) Description: If the SQL server is halted but the webserver is left running, older versions of DBI display an error message to the remote user which contains the database password. While a properly- configured database would still only be accessible by a local user using that password, all installations are advised to change the password after upgrading. Reference: http://bugzilla.mozilla.org/show_bug.cgi?id=227191 Issue 2 ------- Class: Privilege escalation Versions: 2.17.1 through 2.17.7 (2.16-based releases are not affected) Description: A user with privileges to grant membership to one or more individual groups (i.e. usually an administrator) can trick the administrative controls into granting membership in groups other than the ones he has privileges for. Reference: http://bugzilla.mozilla.org/show_bug.cgi?id=233486 Issue 3 ------- Class: Information Leak Versions: All versions prior to 2.16.6 and 2.18rc1 Description: If Bugzilla is configured to hide entire products from some users, both duplicates.cgi and the form for mass-editing a list of bugs in buglist.cgi can disclose the names of those hidden products to such users. References: http://bugzilla.mozilla.org/show_bug.cgi?id=234825 http://bugzilla.mozilla.org/show_bug.cgi?id=234855 Issue 4 ------- Class: Cross-site scripting vulnerability Versions: All versions prior to 2.16.6 and 2.18rc1 Description: Several administration CGIs echo invalid data back to the user without escaping it. Reference: http://bugzilla.mozilla.org/show_bug.cgi?id=235265 Issue 5 ------- Class: User Password embedded in URL Versions: 2.17.5 through 2.17.7 (2.16-based releases are not affected) Description: The user's password can be embedded as part of an image URL, and thus visible in the web server logs, if the user is prompted to log in while attempting to view a chart. Reference: http://bugzilla.mozilla.org/show_bug.cgi?id=235510 Issue 6 ------- Class: Remote SQL injection vulnerability Versions: All versions prior to 2.16.6 and 2.18rc1 Description: A user with privileges to grant membership to any group (i.e. usually an administrator) can trick editusers.cgi into executing arbitrary SQL. Reference: http://bugzilla.mozilla.org/show_bug.cgi?id=244272 Vulnerability Solutions ======================= The fixes for all of the security bugs mentioned in this advisory are included in the 2.16.6 and 2.18rc1 releases. Upgrading to these releases will protect installations from possible exploits of these issues. Full release downloads, patches to upgrade Bugzilla to 2.16.6 from previous 2.16.x versions, and CVS upgrade instructions are available at: http://www.bugzilla.org/download.html Specific patches for each of the individual issues can be found on the corresponding bug reports for each issue, at the URL given in the reference for that issue in the list above. Credits ======= The Bugzilla team wish to thank the following people for their assistance in locating, advising us of, and assisting us to fix these situations: Vlad Dascalu Laran Evans Jouni Heikniemi Felix Hieronymi Byron Jones Gervase Markham Dave Miller Gabriel Millerd Joel Peshkin Christian Reis General information about the Bugzilla bug-tracking system can be found at http://www.bugzilla.org/ Comments and follow-ups can be directed to the netscape.public.mozilla.webtools newsgroup or the mozilla-webtools mailing list; http://www.bugzilla.org/discussion.html has directions for accessing these forums. -30-