Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 27 Mar 2008 18:54:07 -0400 (EDT)
From: "Steven M. Christey" <>
Subject: Re: was: SA29489 CenterIM URL handling flaw

On Tue, 25 Mar 2008, Nico Golde wrote:

> Hi,
> * Nico Golde <> [2008-03-25 16:25]:
> > * Lubomir Kundrak <> [2008-03-24 15:08]:
> > > Ad SA29489 [1] "CenterIM URL Parsing Command Execution Vulnerability"
> > >
> > > CenterIM does completely nothing with received URLs. Maybe the
> > > unfortuate "exploit writer" was using XFCE Terminal [2], or a terminal
> > > emulator with a similar problem.
> >
> > That's partly true. While centerim has no special URL
> > handler to handle incoming urls it does provide the ability
> > to list urls in a message by pressing F2. If you press enter
> > on one of these urls it tries to open it in an external
> > browser and executes the other commands as well.

This is the kind of situation that CVE adopted the "user-assisted" term
for: the user assists the attacker in his/her own demise.

> > You see the commands in the URL however so I think the
> > impact of this is like sending someone a message with
> > "please type rm -rf ~ in your shell" so the secunia rating
> > is a bit beyond the actual impact.

Is the URL still encoded at the time it is viewed?  if so, then I don't
expect a typical user to notice this equivalent of "rm -rf *":


and that's part of the "smell test" for user-assisted issues.

Current CVE desc below.

- Steve

Name: CVE-2008-1467
Status: Candidate
Reference: MILW0RM:5283
Reference: URL:
Reference: BID:28362
Reference: URL:
Reference: FRSIRT:ADV-2008-0956
Reference: URL:
Reference: SECUNIA:29489
Reference: URL:


CenterIM 4.22.3 and earlier allows user-assisted remote attackers to
execute arbitrary commands via shell metacharacters in a URI, related
to "received URLs in the message window."  NOTE: this issue has been
disputed due to the user-assisted nature, since the URL must be
selected and launched by the victim.

Powered by blists - more mailing lists

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.