Re: Various router DoS
Hey,
Same guy that "released" the norton start/stopkeylogger ..
http://www.hm2k.org/news/1141413208.html the comments provide some more info
On 4 Mar 2006 05:42:11 -0000, ryanmeyer14@xxxxxxxxxxxx
<ryanmeyer14@xxxxxxxxxxxx> wrote:
> It appears that various routers are prone to an IRC-only DoS attack.
> Particularly Netgear and Linksys routers have been shown vulnerable.
>
> If a client behind one of the vulnerable routers connects to an IRC server on
> port 6667 (and only 6667, does not DoS with other ports) and a user posts the
> following string in either a channel, private message, ctcp, notice, etc..
> the router will drop the connection. The string is as follows:
>
> DCC SEND anylongrandomstringhere
>
> It is most commonly being seen as
>
> DCC SEND "string" 0 0 0
>
> but that appears to be unneccessary. The string does need to be 15+ chars in
> length.
>
> Further, it appears the routers that are vulnerable to this are running
> vxworks as their embedded OS. Older linux Linksys routers appear to be immune.
>