The web management portal on the SMC SMCD3G-CCR (aka Comcast Business Gateway) with firmware before 1.4.0.49.2 uses predictable session IDs based on time values, which makes it easier for remote attackers to hijack sessions via a brute-force attack on the userid cookie.
seclists.org/bugtraq/2011/Feb/36
secunia.com/advisories/43199
securityreason.com/securityalert/8068
www.exploit-db.com/exploits/16123/
www.securityfocus.com/archive/1/516205/100/0/threaded
www.securityfocus.com/bid/46215
exchange.xforce.ibmcloud.com/vulnerabilities/65186
www.trustwave.com/spiderlabs/advisories/TWSL2011-002.txt