#VU90113 Cross-site scripting in Apache Struts - CVE-2011-1772

Vulnerability identifier: #VU90113

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear]

CVE-ID: CVE-2011-1772

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Apache Struts
Server applications / Frameworks for developing and running applications

Vendor: Apache Foundation

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and inject arbitrary web script or HTML via vectors involving (1) an action name, (2) the action attribute of an s:submit element, or (3) the method attribute of an s:submit element.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..

Vulnerable software versions

Apache Struts: before 2.2.3, 2.2.3

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External links
https://jvn.jp/en/jp/JVN25435092/index.html
https://jvndb.jvn.jp/jvndb/JVNDB-2011-000106
https://secureappdev.blogspot.com/2011/05/apache-struts-2-xwork-webwork-reflected.html
https://secureappdev.blogspot.com/2011/05/Struts_2_XWork_WebWork_XSS_in_error_pages.html
https://struts.apache.org/2.2.3/docs/version-notes-223.html
https://struts.apache.org/2.x/docs/s2-006.html
https://www.securityfocus.com/bid/47784
https://www.ventuneac.net/security-advisories/MVSA-11-006
https://www.vupen.com/english/advisories/2011/1198
https://issues.apache.org/jira/browse/WW-3579

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.