http://www.sourcesec.com/2008/11/09/hacking-the-routers-soho-router-security/
With embedded devices permeating today’s home networks, they have begun to attract a higher level of scrutiny from the security community than in previous years. In particular, the members of GNUCitizen have been relentlessly testing routers and wireless access points. Their discovery of multiple vulnerabilities in the BT Home Hub router affected a wide range of home networks in the UK [1], and their Router Hacking Challenge prompted a flurry of vulnerability reports against a variety of popular home routers, including the venerable Linksys WRT54G [2]. Specific vulnerabilities in home routers range from traditional Web attacks, such as XSS and CSRF, to authentication bypass attacks and buffer overflows; it is assumed that the reader has at least a passing knowledge of the attacks described in this paper.