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Date: Tue, 15 Jun 2010 08:07:31 +0800
From: Eugene Teo <eugeneteo@...nel.sg>
To: oss-security@...ts.openwall.com
CC: Alex Legler <a3li@...too.org>
Subject: Re: CVE request: UnrealIRCd 3.2.8.1 source code contained
 a backdoor allowing for remote command execution

On 06/13/2010 01:10 AM, Alex Legler wrote:
> Hi.
>
> Quoting http://www.unrealircd.com/txt/unrealsecadvisory.20100612.txt:
>
> "We found out that the Unreal3.2.8.1.tar.gz file on our mirrors has been
> replaced quite a while ago with a version with a backdoor (trojan) in
> it. This backdoor allows a person to execute ANY command with the
> privileges of the user running the ircd. The backdoor can be executed
> regardless of any user restrictions (so even if you have passworded
> server or hub that doesn't allow any users in)."
>
> Basically, a system() call was injected into the source code, disguised
> as a debug/log macro.

Also see, http://seclists.org/dailydave/2010/q2/56

Eugene
-- 
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }

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