4.0.14, 4.2.10, 4.4.5, and 4.5.5 Security AdvisoryMonday Oct 6th, 2014
Summary ======= Bugzilla is a Web-based bug-tracking system used by a large number of software projects. The following security issues have been discovered in Bugzilla: * The 'realname' parameter is not correctly filtered on user account creation, which could lead to user data override. * Several places were found in the Bugzilla code where cross-site scripting attacks could be used to access sensitive information. * Private comments can be shown to flagmail recipients who aren't in the insider group * Specially formatted values in a CSV search results export could be used in spreadsheet software to attack a user's computer. All affected installations are encouraged to upgrade as soon as possible. Vulnerability Details ===================== Class: Unauthorized Account Creation Versions: 2.23.3 to 4.0.14, 4.1.1 to 4.2.10, 4.3.1 to 4.4.5, 4.5.1 to 4.5.5 Fixed In: 4.0.15, 4.2.11, 4.4.6, 4.5.6 Description: An attacker creating a new Bugzilla account can override certain parameters when finalizing the account creation that can lead to the user being created with a different email address than originally requested. The overridden login name could be automatically added to groups based on the group's regular expression setting. References: https://bugzilla.mozilla.org/show_bug.cgi?id=1074812 CVE Number: CVE-2014-1572 Class: Cross-Site Scripting Versions: 2.17.1 to 4.0.14, 4.1.1 to 4.2.10, 4.3.1 to 4.4.5, 4.5.1 to 4.5.5 Fixed In: 4.0.15, 4.2.11, 4.4.6, 4.5.6 Description: During an audit of the Bugzilla code base, several places were found where cross-site scripting exploits could occur which could allow an attacker to access sensitive information. References: https://bugzilla.mozilla.org/show_bug.cgi?id=1075578 CVE Number: CVE-2014-1573 Class: Information Leak Versions: 2.17.1 to 4.0.14, 4.1.1 to 4.2.10, 4.3.1 to 4.4.5, 4.5.1 to 4.5.5 Fixed In: 4.0.15, 4.2.11, 4.4.6, 4.5.6 Description: If a new comment was marked private to the insider group, and a flag was set in the same transaction, the comment would be visible to flag recipients even if they were not in the insider group. References: https://bugzilla.mozilla.org/show_bug.cgi?id=1064140 CVE Number: CVE-2014-1571 Class: Social Engineering Versions: 2.17.1 to 4.0.14, 4.1.1 to 4.2.10, 4.3.1 to 4.4.5, 4.5.1 to 4.5.5 Fixed In: 4.0.15, 4.2.11, 4.4.6, 4.5.6 Description: Search results can be exported as a CSV file which can then be imported into external spreadsheet programs. Specially formatted field values can be interpreted as formulas which can be executed and used to attack a user's computer. References: https://bugzilla.mozilla.org/show_bug.cgi?id=1054702 Vulnerability Solutions ======================= The fixes for these issues are included in the 4.0.15, 4.2.11, 4.4.6, and 4.5.6 releases. Upgrading to a release with the relevant fixes will protect your installation from possible exploits of these issues. If you are unable to upgrade but would like to patch just these individual security vulnerabilities, there are patches available for the issues at the "References" URL for each vulnerability. Full release downloads, patches to upgrade Bugzilla from previous versions, and CVS/bzr upgrade instructions are available at: https://www.bugzilla.org/download/ Credits ======= The Bugzilla team wish to thank the following people/organizations for their assistance in locating, advising us of, and assisting us in fixing these issues: Issue 1 reported by: Netanel Rubin of Check Point Vulnerability Research Issue 2 reported by: Frédéric Buclin Issue 3 reported by: Byron Jones Issue 4 reported by: James Kettle Fixed by: Frédéric Buclin, Simon Green, Matt Tyson, David Lawrence, Byron Jones 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.