TITLE:
Net-Acct Insecure Temporary File Creation Vulnerability

SECUNIA ADVISORY ID:
SA12476

VERIFY ADVISORY:
http://secunia.com/advisories/12476/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Net-Acct 0.x
http://secunia.com/product/3875/

DESCRIPTION:
Stefan Nordhausen has discovered a vulnerability in net-acct, which
can be exploited by malicious, local users to perform certain actions
on a vulnerable system with escalated privileges.

The "write_list()" and "dump_curr_list()" functions create temporary
files insecurely. This can be exploited via symlink attacks to
overwrite or create arbitrary files with the privileges of a user
executing net-acct.

The vulnerability affects version 0.71 and prior.

SOLUTION:
The vendor has issued a patch:
http://exorsus.net/projects/net-acct/net-acct-notempfiles.patch

PROVIDED AND/OR DISCOVERED BY:
Stefan Nordhausen

ORIGINAL ADVISORY:
http://exorsus.net/projects/net-acct/

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About:
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