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Secunia Security Advisory 44266

Secunia Security Advisory 44266
Posted Apr 25, 2011
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A security issue has been reported in PolicyKit, which can be exploited by malicious, local users to gain escalated privileges.

tags | advisory, local
SHA-256 | 89ace8e28963655a02cbb7c7a2c86e8d5bd96e0d6136a7696c01875a361fe383

Secunia Security Advisory 44266

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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
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

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:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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