CVE-2010-2756: Medium severity Bugzilla vulnerability
Search.pm in Bugzilla 2.19.1 through 3.2.7, 3.3.1 through 3.4.7, 3.5.1 through 3.6.1, and 3.7 through 3.7.2 allows remote attackers to determine the group memberships of arbitrary users via vectors involving the Search interface, boolean charts, and group-based pronouns.
Other sources
Upstream Bugzilla has released 3.4.8 and 3.6.2 to address four security flaws [1]:
Vulnerability Details =====================
Class: Remote Information Disclosure Versions: 2.19.1 to 3.2.7, 3.3.1 to 3.4.7, 3.5.1 to 3.6.1, 3.7 to 3.7.2 Fixed In: 3.2.8, 3.4.8, 3.6.2, 3.7.3 Description: An unprivileged user is normally not allowed to view other users' group membership. But boolean charts let the user use group-based pronouns, indirectly disclosing group membership. This security fix restricts the use of pronouns to groups the user belongs to. References: https://bugzilla.mozilla.org/showbug.cgi?id=417048 CVE Number: CVE-2010-2756
Class: Notification Bypass Versions: 2.22rc1 to 3.2.7, 3.3.1 to 3.4.7, 3.5.1 to 3.6.1, 3.7 to 3.7.2 Fixed In: 3.2.8, 3.4.8, 3.6.2, 3.7.3 Description: Normally, when a user is impersonated, he receives an email informing him that he is being impersonated, containing the identity of the impersonator. However, it was possible to impersonate a user without this notification being sent. References: https://bugzilla.mozilla.org/showbug.cgi?id=450013 CVE Number: CVE-2010-2757
Class: Remote Information Disclosure Versions: 2.17.1 to 3.2.7, 3.3.1 to 3.4.7, 3.5.1 to 3.6.1, 3.7 to 3.7.2 Fixed In: 3.2.8, 3.4.8, 3.6.2, 3.7.3 Description: An error message thrown by the "Reports" and "Duplicates" page confirmed the non-existence of products, thus allowing users to guess confidential product names. (Note that the "Duplicates" page was not vulnerable in Bugzilla 3.6rc1 and above though.) References: https://bugzilla.mozilla.org/showbug.cgi?id=577139 https://bugzilla.mozilla.org/showbug.cgi?id=519835 CVE Number: CVE-2010-2758
Class: Denial of Service Versions: 2.23.1 to 3.2.7, 3.3.1 to 3.4.7, 3.5.1 to 3.6.1, 3.7 to 3.7.2 Fixed In: 3.2.8, 3.4.8, 3.6.2, 3.7.3 Description: If a comment contained the phrases "bug X" or "attachment X", where X was an integer larger than the maximum 32-bit signed integer size, PostgreSQL would throw an error, and any page containing that comment would not be viewable. On most Bugzillas, any user can enter a comment on any bug, so any user could have used this to deny access to one or all bugs. Bugzillas running on databases other than PostgreSQL are not affected. References: https://bugzilla.mozilla.org/showbug.cgi?id=583690 CVE Number: CVE-2010-2759
[1] http://www.bugzilla.org/security/3.2.7/
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2010-2756?
CVE-2010-2756 has a moderate severity rating as it allows unauthorized users to exploit group membership visibility.
How do I fix CVE-2010-2756?
To fix CVE-2010-2756, upgrade to a patched version of Bugzilla that addresses this vulnerability.
Which versions of Bugzilla are affected by CVE-2010-2756?
CVE-2010-2756 affects Bugzilla versions 2.19.1 through 3.2.7 and various 3.x versions up to 3.7.2.
What impact does CVE-2010-2756 have on user privacy?
CVE-2010-2756 can lead to potential privacy breaches by allowing attackers to discover the group memberships of users.
Are there any known exploits for CVE-2010-2756?
While specific exploits for CVE-2010-2756 have not been publicly detailed, the vulnerability's nature allows for remote information disclosure.