A vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Novell software which utilize the Novell Client Trust. Authentication is not required to exploit this vulnerability.
Vulnerable Systems:
* Novell BorderManager version 3.8
The specific flaw exists in the Novell Client Trust application, clntrust.exe, which listens by default on UDP port 3024 on Novell client machines. During a validation request, the Client Trust process copies a user-supplied Novell tree name until a wide-character backslash or a NULL is encountered. If neither is found within the data, the process will copy excess data which later overflows a static buffer during a call to wsprintfA.
Disclosure Timeline:
2007.07.17 - Vulnerability reported to vendor
- Digital Vaccine released to TippingPoint customers
2007.10.25 - Coordinated public release of advisory