A vulnerability has been reported in SCO UnixWare, which can be exploited by malicious, local users to gain escalated privileges.

The vulnerability is caused due to the "pkgadd" command not properly filtering a certain environment variable. This can be exploited to add user accounts or gain escalated privileges by overwriting system files via directory traversal sequences (e.g. "../").

This is related to:
SA29370

Successful exploitation allows gaining root privileges, but requires that the attacker can execute arbitrary shell commands.

The vulnerability is reported in SCO UnixWare 7.1.3 and 7.1.4. Other versions may also be affected.

Solution
Apply patches.
Further details available in Customer Area

Provided and/or discovered by
Discovered by an anonymous person and reported via iDefense Labs.

Changelog
Further details available in Customer Area

Original Advisory
iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=676

SCO:
http://www.sco.com/support/update/download/release.php?rid=324
ftp://ftp.sco.com/pub/unixware7/714/security/p534589b/p534589b.txt
ftp://ftp.sco.com/pub/unixware7/713/security/p534589b_713/p534589b.txt

Other references
Further details available in Customer Area

Alternate/detailed remediation
Further details available in Customer Area

Deep Links
Links available in Customer Area