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Category:   Application (File Transfer/Sharing)  >   Samba Vendors:   Samba.org
Samba 'group_mapping.ldb' Has Unsafe Permissions That Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1020770
SecurityTracker URL:  http://securitytracker.com/id/1020770
CVE Reference:   CVE-2008-3789   (Links to External Site)
Date:  Aug 27 2008
Impact:   Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.2.0 - 3.2.2
Description:   A vulnerability was reported in Samba. A local user can obtain elevated privileges on the target system.

The system creates the 'group_mapping.ldb' file with 0666 permissions. A local user can edit the SID mappings in the file and then subsequently connect to the file server with root privileges.

Sascha Herrmann reported this vulnerability.

Impact:   A local user can obtain root privileges on the target file server.
Solution:   The vendor has issued a fix (3.2.3).

Some patches for prior versions are available at:

http://www.samba.org/samba/security/

The vendor's advisory is available at:

http://samba.org/samba/security/CVE-2008-3789.html

Vendor URL:  samba.org/samba/security/CVE-2008-3789.html (Links to External Site)
Cause:   Access control error, Configuration error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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