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Category:   Application (Security)  >   Sudo Vendors:   sudo.ws
Sudo Race Condition in Processing Command Pathnames Lets Local Users Execute Arbitrary Commands
SecurityTracker Alert ID:  1014241
SecurityTracker URL:  http://securitytracker.com/id/1014241
CVE Reference:   CVE-2005-1993   (Links to External Site)
Updated:  Jun 29 2005
Original Entry Date:  Jun 20 2005
Impact:   Execution of arbitrary code via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 1.3.1 up to and including 1.6.8p8
Description:   A vulnerability was reported in sudo. A local user can execute arbitrary commands.

In a certain configuration, a local user can exploit a race condition to execute arbitrary commands on the target system. If there is a sudoers 'ALL' entry that follows the local user's sudoers entry, then the flaw can be exploited.

The vendor credits Charles Morris with reporting this vulnerability.

Impact:   A local user can execute arbitrary commands in certain cases.
Solution:   The vendor has issued a fixed version (1.6.8p9), available at:

http://www.sudo.ws/sudo/download.html

Vendor URL:  www.sudo.ws/sudo/alerts/path_race.html (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jun 21 2005 (OpenBSD Issues Fix) Sudo Race Condition in Processing Command Pathnames Lets Local Users Execute Arbitrary Commands
OpenBSD has released a fix.
Jun 29 2005 (Red Hat Issues Fix) Sudo Race Condition in Processing Command Pathnames Lets Local Users Execute Arbitrary Commands
Red Hat has released a fix.
Nov 30 2005 (Apple Issues Fix for OS X) Sudo Race Condition in Processing Command Pathnames Lets Local Users Execute Arbitrary Commands
Apple has released a fix.



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