(PT-2012-59) Positive Technologies Security Advisory
XML External Entity Injection in Zend Framework

Vulnerable software

Zend Framework
Version: 1.12.0; 1.1.13 and earlier

Application link: 
http://framework.zend.com/

Severity level

Severity level: Medium 
Impact: XML External Entity Injection (XXE)
Access Vector: Remote

CVSS v2: 
Base Score: 6.4 
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:P)

CVE: not assigned

Software description

Zend Framework is a object-oriented library of components used to develop web application on PHP.

Vulnerability description

The specialists of the Positive Research center have detected a XXE Injection vulnerability in Zend Framework.
XXE Injection is possible during import of RSS documents in Zend Framework. An attacker is able to read an arbitrary file on the target system.

How to fix

Update your software up to the latest version.

Advisory status

13.12.2012 - Vendor is notified
13.12.2012 - Vendor gets vulnerability details
17.12.2012 - Vendor releases fixed version and details
05.02.2013 - Public disclosure

Credits

The vulnerability has discovered by Yury Dyachenko, Positive Research Center (Positive Technologies Company)

References

http://en.securitylab.ru/lab/PT-2012-59
http://framework.zend.com/security/advisory/ZF2012-05

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.