Description
Cisco PIX Private Link 4.1.6 and earlier does not properly process certain commands in the configuration file, which reduces the effective key length of the DES key to 48 bits instead of 56 bits, which makes it easier for an attacker to find the proper key via a brute force attack.
References
- I-056 third-party-advisory government-resource
- cisco-pix-parse-error(1579) vdb-entry
- 19980616 PIX Private Link Key Processing and Cryptography Issues vendor-advisory