Secunia Security Advisory - Gu1 has discovered a weakness in X.Org, which can be exploited by malicious people with physical access to bypass certain security restrictions.
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TITLE:
X.Org Grab-Breaking Keybinding Security Bypass Weakness
SECUNIA ADVISORY ID:
SA47566
VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/47566/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=47566
RELEASE DATE:
2012-01-19
DISCUSS ADVISORY:
http://secunia.com/advisories/47566/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
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* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)
http://secunia.com/advisories/47566/
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https://ca.secunia.com/?page=viewadvisory&vuln_id=47566
ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
Gu1 has discovered a weakness in X.Org, which can be exploited by
malicious people with physical access to bypass certain security
restrictions.
The weakness is caused due to xserver providing a grab-breaking
hotkey functionality, which is bound by default in xkeyboard-config.
This can be exploited to e.g. bypass the lock mechanism provided by
certain screen savers by pressing a certain key combination.
SOLUTION:
Do not rely on the screen locking mechanism provided by screen
savers.
PROVIDED AND/OR DISCOVERED BY:
Gu1
ORIGINAL ADVISORY:
http://gu1.aeroxteam.fr/2012/01/19/bypass-screensaver-locker-program-xorg-111-and-up/
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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