2.18.4, 2.20, and 2.21.1 Security Advisory
Monday, Feb 20th, 2006Summary ======= Bugzilla is a Web-based bug-tracking system used by a large number of software projects. The following security issue has been discovered in Bugzilla: * The 'whinedays' and 'mostfreqthreshold' parameters are not correctly validated in editparams.cgi. The first one can lead to SQL injection. * Escaped HTML markup in titles of RSS feeds are incorrectly decoded by some RSS readers and could potentially lead to XSS vulnerabilities. * The login form on the home page, in conjuction with very specific configuration settings and a specially formed URL, may redirect you outside the Bugzilla installation, allowing the login name and password to be stolen. All affected installations are encouraged to upgrade as soon as possible. Vulnerability Details ===================== Class: SQL injection Versions: 2.17.1 and above Description: The 'whinedays' parameter, editable from editparams.cgi, is not validated before being saved. This can lead to SQL injection in the whineatnews.pl script. This injection requires administrative privileges. The validation for the 'mostfreqthreshold' parameter is also missing, but this is not exploitable. References: https://bugzilla.mozilla.org/show_bug.cgi?id=312498 Class: Cross Site Scripting Versions: 2.20rc1 - 2.20, 2.21.1 Description: Some RSS readers incorrectly decode escaped HTML markup in feed titles and this could be used to inject some scripts. Although this is not a Bugzilla bug, we prefer to shift to Atom feeds, where the RFC is unambiguous about HTML markup in feed titles. References: https://bugzilla.mozilla.org/show_bug.cgi?id=313441 Class: Sensitive Data Exposure Versions: 2.19.3 and above Description: When the Bugzilla login page is at a subdirectory of the web server and the subdirectory name is a resolvable host on the victim's local network, it is possible to craft a URL that, when used to login to Bugzilla, would send the user's credentials to this host. These conditions make this flaw very difficult to exploit. References: https://bugzilla.mozilla.org/show_bug.cgi?id=325079 Vulnerability Solutions ======================= The fix for this issue is included in the releases. Upgrading to a release with the relevant fix will protect your installation from possible exploits of this issue. If you are unable to upgrade but would like to patch just the security vulnerability, there are patches available for the issue at the "References" URL. Full release downloads, patches to upgrade Bugzilla from previous versions, and git upgrade instructions are available at: https://www.bugzilla.org/download/ Credits ======= The Bugzilla team wish to thank the following people for their assistance in locating, advising us of, and assisting us to fix this issue: Issue 1 Reporter: Frédéric Buclin Issue 1 Fixed by: Frédéric Buclin, Teemu Mannermaa Issue 2 Reporter: Phil Ringnalda Issue 2 Fixed by: Phil Ringnalda, Frédéric Buclin, Myk Melez Issue 3 Reporter: Frédéric Buclin Issue 3 Fixed by: Frédéric Buclin General information about the Bugzilla bug-tracking system can be found at: https://www.bugzilla.org/ Comments and follow-ups can be directed to the mozilla.support.bugzilla newsgroup or the support-bugzilla mailing list. https://www.bugzilla.org/support/ has directions for accessing these forums.