bugtraq - Re: b2 cafelog 0.6.1 remote command execution.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date: Mon, 2 Jun 2003 10:59:10 -0400 (EDT)
From: Cheng-Jih Chen <cjc@....org>
To: mike little <mike@...1.com>
Subject: Re: b2 cafelog 0.6.1 remote command execution.

On Fri, 30 May 2003, mike little wrote:

> Secondly, has anyone tried this? The fact is that b2config.php defines 
> $b2inc with no test before hand. So that, whilst for the duration of the 
> parsing of b2config.php, $b2inc could indeed be set to some value from 
> the outside world. It is immediately overwritten with no check with the 
> value set by the user (or left from the defalut installation).
> In order to effectively use the setting of b2inc for malicious purposes 
> you would have to have enough access to edit b2config.php.

The problem is that the default location for gm-2-b2.php is in
the b2-tools directory.  The include("b2config.php") statement may
then miss the primary b2 directory and fail to pick up b2config.php.
If register_globals is on, then the attacker can set the b2inc variable
from the URL.