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Category:   OS (UNIX)  >   Crontab Vendors:   Sun
Solaris Crontab Injection Bug Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1020151
SecurityTracker URL:  http://securitytracker.com/id/1020151
CVE Reference:   CVE-2008-2538   (Links to External Site)
Updated:  Jun 6 2008
Original Entry Date:  Jun 2 2008
Impact:   Execution of arbitrary code via local system, Modification of user information, Root access via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 8, 9, 10
Description:   A vulnerability was reported in Crontab on Sun Solaris. A local user can obtain root privileges on the target system.

A local user can exploit a race condition in the crontab(1) utility to inject arbitrary cron(1M) jobs into a target user's crontab file, which will then be executed with the privileges of the target user.

Charles Morris of Old Dominion University reported this vulnerability.

Impact:   A local user can obtain cause arbitrary code to be executed with the privileges of the target user, including root privileges.
Solution:   The vendor has issued the following fixes.

SPARC Platform

* Solaris 8 with patch 109007-26 or later
* Solaris 9 with patch 122300-27 or later
* Solaris 10 with patch 137017-02 or later
* OpenSolaris based upon builds snv_93 or later

x86 Platform

* Solaris 8 with patch 109008-26 or later
* Solaris 9 with patch 122301-27 or later
* Solaris 10 with patch 137018-02 or later
* OpenSolaris based upon builds snv_93 or later

The vendor's advisory is available at:

http://sunsolve.sun.com/search/document.do?assetkey=1-66-237864-1

Vendor URL:  sunsolve.sun.com/search/document.do?assetkey=1-66-237864-1 (Links to External Site)
Cause:   Access control error

Message History:   None.


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