Vulnerability In Linksys Cable/DSL Router
ispcay writes "Yahoo has published an article on a Linksys vulnerability. An easily exploitable software vulnerability in a common home networking router by Linksys Group could expose thousands of home users to denial of service attacks, according to a security advisory issued by iDefense, a software security company." The article's kinda sparse on details, but does mention that the vulnerability is fixed in the latest firmware release. Upgrade 'em if ya got 'em!
From the e-week article, all you have to do is disable remote admin, which is the default setting, which you should have confirmed anyhow. Duh.
No firmware flashing needed.
political_news.c: warning: comparison is always true due to limited range of data type
The default Linksys in the article has 4 ports, true, but they can actually support 254 clients if you connect them to a switch. Furthermore, the BEFSR11 is a one-port, designed to be connected to a switch or hub, and has proven very popular in labs of anywhere from 10-30 workstations, although it can actually support up to 254 clients. Consequently, there are those out there who may get a sick kick out of kicking schools, non-profit organizations and other institutions offline.
The BEFSR11 is truly cool. $50 gets you a box that barely draws any power and routes requests quite nicely for 254 machines and functions as a DHCP server to boot. Practically maintenance free. Most of mine already have upgraded firmware, but you can bet that I - and several other admins who oversee non-profit and educational sites - will be busy checking firmware versions for a while.