CVE-1999-1100 Information

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.

Reference

http://ciac.llnl.gov/ciac/bulletins/i-056.shtml http://www.cisco.com/warp/public/770/pixkey-pub.shtml https://exchange.xforce.ibmcloud.com/vulnerabilities/1579