Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 27 Feb 2014 14:14:59 +0100
From: Damien Cauquil <d.cauquil@...dream.com>
To: cve-assign@...re.org
CC: oss-security@...ts.openwall.com
Subject: Re: CVE request: PLOGGER 1.0RC1 multiple vulnerabilities

> Can you explain the race condition? For example: without the true
> image file, would the product extract the .php file but then delete it
> very soon afterward?

The zip file must at least contains a non-empty image file with a name
including a valid extension, and of course the exploit php file. Once
the zip uploaded, the web application tells the user it has found one or
many images, and asks for a validation. If this validation step is not
performed, all the unzipped files remain and the php file can be called
directly with a web browser.


Le 27/02/2014 14:07, cve-assign@...re.org a écrit :
>> We found two vulnerabilities in PLOGGER version 1.0RC1, including:
> 
> 
>> 1. Authenticated Arbitrary file upload vulnerability affecting PLOGGER
>> version 1.0RC1
> 
>> This vulnerability allows an authenticated user to upload an arbitrary
>> PHP file on the remote web server in an accessible path, by sending a
>> specifically crafted zip file.
> 
>> session.post('http://' + HOST + "/plog-admin/plog-upload.php",
> 
>> ## Add true image file to block the race condition (mandatory not
>> null)
> 
> Use CVE-2014-2223.
> 
> Can you explain the race condition? For example: without the true
> image file, would the product extract the .php file but then delete it
> very soon afterward?
> 
> 
> 
>> 2. CAPTCHA bypass vulnerability
> 
>> A theme called "Lucid" provided in PLOGGER version 1.0RC1 implements a
>> weak CAPTCHA prone to a replay attack. By abusing this vulnerability,
>> an unauthenticated user may be able to post a huge number of comments.
> 
>> The script generating the CAPTCHA image inserts a code in the current
>> user session, but this value is not unset while processing the form,
>> thus allowing an attacker to submit multiple times the form with
>> always the same captcha and associated code.
> 
>> The vulnerable code is located in plog-comment.php, line 106.
> 
> Use CVE-2014-2224.
> 
> 

-- 
Damien Cauquil
Directeur Recherche & Développement
CHFI | CEH | ECSA | CEI

Sysdream
108 avenue Gabriel Péri
93400 Saint Ouen
Tel: +33 (0) 1 78 76 58 21
www.sysdream.com


Download attachment "signature.asc" of type "application/pgp-signature" (279 bytes)

Powered by blists - more mailing lists

Your e-mail address:

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.