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TITLE:
PolicyKit "pkexec" Race Condition Privilege Escalation Security Issue

SECUNIA ADVISORY ID:
SA44266

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/44266/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=44266

RELEASE DATE:
2011-04-25

DISCUSS ADVISORY:
http://secunia.com/advisories/44266/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/44266/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
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https://ca.secunia.com/?page=viewadvisory&vuln_id=44266

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been reported in PolicyKit, which can be
exploited by malicious, local users to gain escalated privileges.

The security issue is caused due to a race condition when determining
the privileges of the parent process, which can be exploited to gain
escalated privileges by e.g. invoking a suid root application from
the parent process.

The security issue is reported in version 0.101. Other versions may
also be affected.

SOLUTION:
Fixed in the GIT repository.

Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Neel Mehta, Google.

ORIGINAL ADVISORY:
Red Hat Bug #692922:
https://bugzilla.redhat.com/show_bug.cgi?id=692922

GIT Commits:
http://cgit.freedesktop.org/PolicyKit/commit/?id=dd848a42a64a3b22a0cc60f6657b56ce9b6010ae
http://cgit.freedesktop.org/PolicyKit/commit/?id=129b6223a19e7fb2753f8cad7957ac5402394076
http://cgit.freedesktop.org/PolicyKit/commit/?id=c23d74447c7615dc74dae259f0fc3688ec988867
http://cgit.freedesktop.org/PolicyKit/commit/?id=3b12cfac29dddd27f1f166a7574d8374cc1dccf2

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
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