Vulnerability identifier: #VU2803

Vulnerability risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-1182

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

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

Vendor: Apache Foundation

Description
The vulnerability allows a remote attacker to perform cross-site scripting attack or cause DoS condition on the target system.

The weakness exists due to improper restrictions of the Validation configuration by ActionServlet.java in Apache Struts. A remote attacker can send a specially crafted input, trick the victim into opening it and conduct cross-site scripting (XSS) attacks or cause the application to crash.

Successful exploitation of the vulnerability may result in denial of service.

Mitigation
Update to version 1.3.10.

Vulnerable software versions

Apache Struts:

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External links
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

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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.