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TITLE:
Sudo Arbitrary Command Execution Vulnerability

SECUNIA ADVISORY ID:
SA15744

VERIFY ADVISORY:
http://secunia.com/advisories/15744/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
Local system

SOFTWARE:
Sudo 1.x
http://secunia.com/product/3929/

DESCRIPTION:
A vulnerability has been reported in sudo, which can be exploited by
malicious, local users to execute arbitrary commands.

The vulnerability is caused due to a race condition in the pathname
validation that can occur if a "sudoers" entry containing the "ALL"
pseudo-command follows a user's "sudoers" entry.

Successful exploitation allows the user to execute arbitrary
commands, but requires that the user is allowed to run  commands via
Sudo and is able to create symbolic links in the filesystem.

The vulnerability has been reported in versions 1.3.1 through
1.6.8p8.

SOLUTION:
Update to version 1.6.8.p9.
ftp://plier.ucar.edu/pub/sudo/sudo-1.6.8p9.tar.gz

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Charles Morris.

ORIGINAL ADVISORY:
http://www.sudo.ws/sudo/alerts/path_race.html

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

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

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