Title: Bugzilla process_bug.cgi Duplicate Bug Disclosure Vulnerability
Severity: MODERATE
Description:
Bugzilla is a free, open source bug tracking and reporting appplication. It allows users to submit bugs, offers a forum for discussing bugs, keeps track of the status of bugs, and can restrict who has access to bug information.
A vulnerability in 'process_bug.cgi' makes it possible to bypass the access controls for bugs that are designated as restricted by Bugzilla. To exploit this issue, a restricted bug must be open to people on the cclist. If a user adds a bug and then designates it as a duplicate of the existing restricted bug then they will be added to the cclist of the existing bug. This allows the user to bypass the group-based access controls enforced by Bugzilla.
Affected Products:
- Mozilla Bugzilla 2.10.0
- Mozilla Bugzilla 2.12.0
- Mozilla Bugzilla 2.4.0
- Mozilla Bugzilla 2.6.0
- Mozilla Bugzilla 2.8.0
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