SafeNet SoftRemote Local Buffer Overflow - Security Advisory - SOS-09-008


Release Date.                  30-Oct-2009
Vendor Notification Date.      20-Jul-2009
Product.                       SafeNet SoftRemote
Platform.                      Microsoft Windows
Affected versions.             10.8.5 (Build 2), 10.3.5 (Build 6)
                               verified and possibly others.
                               Other vendors which have OEM'd the
                               client.
Severity Rating.               High
Impact.                        System access
Attack Vector.                 Local
Solution Status.               Fixed in 10.8.9 (unverified)
CVE reference.                 Not currently assigned

Details.
SafeNet SoftRemote is an IPsec VPN client that sets up a secure
channel for data transport. The application is a popular VPN client
which has been OEM'd by many other companies. As a result this
vulnerability affects a number of products and vendors. SafeNet
SoftRemote is vulnerable to a local stack based buffer overflow
which can lead to the compromise of a vulnerable system.

The vulnerability is caused due to a boundary error when processing
certain sections of spd (policy) files. Passing an overly long
string to either "TREENAME" or "GROUPNAME" will trigger the
overflow. Successful exploitation results in the execution of
arbitrary code.

Solution.
Fixed in 10.8.9 (unverified).

Discovered by.
Brett Gervasoni from SOS Labs.

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The latest version of this advisory can be found at:
http://www.senseofsecurity.com.au/advisories/SOS-09-008

A video demonstrating this exploit can be found at:
http://www.senseofsecurity.com.au/movies/SOS-09-008-safenet.mp4

Other Sense of Security advisories can be found at:
http://www.senseofsecurity.com.au/research/it-security-advisories.php