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Category:   Application (E-mail Server)  >   Exim Vendors:   Exim.org
Exim Configuration File Capability Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1024859
SecurityTracker URL:  http://securitytracker.com/id/1024859
CVE Reference:   CVE-2010-4345   (Links to External Site)
Date:  Dec 10 2010
Impact:   Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.72 and prior versions
Description:   A vulnerability was reported in Exim. A local user can obtain root privileges on the target system.

A local user with Exim user privileges can create a specially crafted configuration file and then cause Exim to execute directives in the configuration file with root privileges.

Systems built with the ALT_CONFIG_ROOT_ONLY configuration option unset (the default) are affected.

Impact:   A local user can obtain root privileges on the target system.
Solution:   The vendor has issued a proposed patch the (that removes the ability to unset the ALT_CONFIG_ROOT_ONLY configuration option), available at:

http://bugs.exim.org/show_bug.cgi?id=1044

Vendor URL:  www.exim.org/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jan 17 2011 (Red Hat Issues Fix) Exim Configuration File Capability Lets Local Users Gain Elevated Privileges
Red Hat has issued a fix for Red Hat Enterprise Linux 4 and 5.



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