A weakness, a security issue, and multiple vulnerabilities have been reported in RT (Request Tracker), which can be exploited by malicious, local users to manipulate certain data, by malicious users to bypass certain security restrictions and conduct script insertion attacks, and by malicious people to gain knowledge of potentially sensitive information and conduct HTTP response splitting attacks.
1) The application improperly restricts access related to the DeleteTicket and any custom lifecycle transition rights, which can be exploited to manipulate otherwise restricted ticket data.
Successful exploitation of this vulnerability requires ModifyTicket privileges.
2) The application creates certain files within the /tmp directory with predictable names in an insecure way, which can be exploited to overwrite arbitrary files with the access rights of the user running the application via symlink attacks.
3) Certain input passed via attachment filenames is not properly sanitised before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site if malicious data is viewed.
4) Certain input passed via URLs within ticket content is not properly sanitised before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site if malicious data is viewed.
Successful exploitation of this vulnerability requires that the "MakeClicky" feature is configured.
5) Certain input is not properly sanitised before being used to display Content-Disposition headers. This can be exploited to include arbitrary Content-Disposition headers in a response sent to the user.
6) The application insecurely handles the re-use of sessions, which can be exploited to e.g. disclose certain user preferences or caches.
Successful exploitation of this vulnerability requires the use of the file-based session store Apache::Session::File (default for Oracle).
Note: Additionally a weakness exists, which can be exploited by users with permissions to see administration pages to call arbitrary Mason components.
Please see the vendor's advisory for a list of affected versions.
Solution: Update to version 3.8.17 or 4.0.13.
Provided and/or discovered by: 1-4) Reported by the vendor.
5) The vendor credits Dominic Hargreaves.
6) The vendor credits Jenny Martin.
Original Advisory: http://lists.bestpractical.com/pipermail/rt-announce/2013-May/000226.html
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Subject: RT Multiple Vulnerabilities
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