Title: Caldera Open Unix UIDAdmin Scheme Option Buffer Overflow Vulnerability
Severity: HIGH
Description:
Open Unix is the commercially available Unix derivative available from Caldera International. It was originally UnixWare avialable from Santa Cruz Operations.
The 'uidadmin' system utility, a component of the SCO ID mapping facilities, is shipped by default with Open Unix and installed setuid root. 'uidadmin' contains a locally exploitable buffer overflow vulnerability in it's handling of commandline arguments.
If the '-S' parameter is argumented with a long string, a buffer overflow occurs. This may result in the corruption of a function stack frame or other sensitive areas of memory.
It may be possible for attackers to exploit this condition to execute shellcode with effective root privileges.
Affected Products:
- Caldera OpenUnix 8.0.0
- Caldera UnixWare 0.0.07
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