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Category:   Application (Generic)  >   Sudo Vendors:   Miller, Todd C.
(OpenBSD Issues Fix) Sudo Supplemental Group Privilege Error Lets Certain Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1021742
SecurityTracker URL:  http://securitytracker.com/id/1021742
CVE Reference:   CVE-2009-0034   (Links to External Site)
Date:  Feb 23 2009
Impact:   Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.6.9 - 1.6.9p19
Description:   A vulnerability was reported in Sudo. A local user can obtain elevated privileges on the target system in certain cases.

The software does not properly process supplemental group entries in the 'sudoers' configuration file. A local user that is permitted to run commands as any user of a group that the local user is also a member of can run certain commands with root privileges.

Harald Koenig reported this vulnerability.

Impact:   A local user can obtain root privileges on the target system in certain cases.
Solution:   OpenBSD has issued the following patches:

ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.4/common/011_sudo.patch
ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.3/common/011_sudo.patch

Vendor URL:  www.sudo.ws/sudo/alerts/group_vector.html (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (OpenBSD)
Underlying OS Comments:  4.3, 4.4

Message History:   This archive entry is a follow-up to the message listed below.
Feb 5 2009 Sudo Supplemental Group Privilege Error Lets Certain Local Users Gain Elevated Privileges



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