TITLE:
Nessus "adduser" Race Condition Vulnerability

SECUNIA ADVISORY ID:
SA12127

VERIFY ADVISORY:
http://secunia.com/advisories/12127/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Nessus 2.x
http://secunia.com/product/1397/

DESCRIPTION:
Cyrille Barthelemy has reported a vulnerability in Nessus,
potentially allowing malicious users to escalate their privileges.

The problem is caused by a race condition in "nessus-adduser" if the
user hasn't specified the environment variable "TMPDIR".

This has been reported to affect version 2.0.11. Prior versions may
also be affected.

SOLUTION:
This has been fixed in version 2.0.12.
http://www.nessus.org/nessus_2_0.html

PROVIDED AND/OR DISCOVERED BY:
Cyrille Barthelemy

ORIGINAL ADVISORY:
http://www.nessus.org/nessus_2_0.html

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