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TITLE:
smcFanControl "main()" Privilege Escalation Vulnerability

SECUNIA ADVISORY ID:
SA32679

VERIFY ADVISORY:
http://secunia.com/advisories/32679/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
smcFanControl 2.x
http://secunia.com/advisories/product/20475/

DESCRIPTION:
KaiJern Lau has reported a vulnerability in smcFanControl, which can
be exploited by malicious, local users to gain escalated privileges.

The vulnerability is caused due to a boundary error in the "main()"
function of the "smc" setuid root binary. This can be exploited to
cause a stack-based buffer overflow via an overly long "-k" option.

Successful exploitation allows the execution of arbitrary code with
escalated privileges.

The vulnerability is reported in version 2.1.2. Prior versions may
also be affected.

SOLUTION:
Update to version 2.1.3.1.
http://www.macupdate.com/info.php/id/23049

PROVIDED AND/OR DISCOVERED BY:
KaiJern Lau, vnsecurity

ORIGINAL ADVISORY:
smcFanControl:
http://www.macupdate.com/info.php/id/23049

KaiJern Lau:
http://blog.xwings.net/?p=127

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