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Category:   Application (Firewall)  >   Shorewall Vendors:
Shorewall Uses Unsafe Temporary Files That May Allow a Local User to Gain Elevated Privileges
SecurityTracker Alert ID:  1010685
SecurityTracker URL:
CVE Reference:   CVE-2004-0647   (Links to External Site)
Date:  Jul 13 2004
Impact:   Modification of system information, Modification of user information, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Prior to 2.0.3a and 1.4.10f
Description:   A vulnerability was reported in Shorewall in the processing of temporary files and directories. A local user may be able to gain elevated privileges.

The vendor reported that a local user can cause arbitrary files on the target system to be overwritten with root privileges.

The vendor credits Javier Fernandez-Sanguino Pena with discovering this flaw.

Impact:   A local user can cause Shorewall to overwrite arbitrary files with root privileges.
Solution:   The vendor has released fixed versions (2.0.3a and 1.4.10f), available at:

Vendor URL: (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.

 Source Message Contents

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