PT-2013-36: XML External Entity Injection in Wonderware Win-XML Exporter

(PT-2013-36) Positive Technologies Security Advisory
XML External Entity Injection in Wonderware Win-XML Exporter

Vulnerable software

Wonderware Win-XML Exporter
Version: 1522.148.0.0 and earlier

Application link:
http://global.wonderware.com/EN/Pages/default.aspx

Severity level

Severity level: Medium
Impact: Internal Network Resources and File System Access, Denial of Service
Access Vector: Remote

CVSS v2:
Base Score: 6.3
Vector: (AV:L/AC:M/Au:N/C:C/I:N/A:C)

CVE: CVE-2012-4710

Software description

Wonderware Win-XML Exporter converts interface windows from Intouch HMI projects and displays them in Internet Explorer with the help of Wonderware Information Server.

Vulnerability description

Positive Research Center experts have discovered "XML External Entity Injection" vulnerability in Wonderware Win-XML Exporter.

If an attacker manages to make a victim open a project that contains specially crafted XML, Wonderware Win-XML Exporter will automatically send the contents of local or remote resource to the attacker's server. It also makes possible to conduct denial of service attacks.

How to fix

Update your software up to the latest version.

Advisory status

22.11.2012 - Vendor gets vulnerability details
21.03.2013 - Vendor releases fixed version and details
03.04.2013 - Public disclosure

Credits

The vulnerability was discovered by Timur Yunusov, Alexey Osipov, Ilya Karpov, Positive Research Center (Positive Technologies Company)

References

http://en.securitylab.ru/lab/PT-2013-36

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.