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TITLE:
systemd Session Logout File Deletion Weakness

SECUNIA ADVISORY ID:
SA48331

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48331/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48331

RELEASE DATE:
2012-03-19

DISCUSS ADVISORY:
http://secunia.com/advisories/48331/#comments

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

http://secunia.com/advisories/48331/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=48331

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 weakness has been reported in systemd, which can be exploited by
malicious, local users to manipulate certain data.

The weakness is caused due to a race condition in the systemd-logind
component when removing certain records during user's logout and can
be exploited to delete an arbitrary file via a symlink.

The weakness is reported in version 44 and prior.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
Reported by Michal Schmidt, Red Hat

ORIGINAL ADVISORY:
http://seclists.org/oss-sec/2012/q1/672

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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