#VU89696 Input validation error in Apache Struts - CVE-2013-2251

Vulnerability identifier: #VU89696

Vulnerability risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2013-2251

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

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

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and execute arbitrary OGNL expressions via a parameter with a crafted (1) action:, (2) redirect:, or (3) redirectAction: prefix.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Struts: 2.0.0 - 2.3.15

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External links
https://archiva.apache.org/security.html
https://cxsecurity.com/issue/WLB-2014010087
https://osvdb.org/98445
https://packetstormsecurity.com/files/159629/Apache-Struts-2-Remote-Code-Execution.html
https://seclists.org/fulldisclosure/2013/Oct/96
https://seclists.org/oss-sec/2014/q1/89
https://struts.apache.org/release/2.3.x/docs/s2-016.html
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20131023-struts2
https://www.fujitsu.com/global/support/software/security/products-f/interstage-bpm-analytics-201301e.html
https://www.oracle.com/technetwork/topics/security/cpujan2014-1972949.html
https://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
https://www.securityfocus.com/bid/61189
https://www.securityfocus.com/bid/64758
https://www.securitytracker.com/id/1029184
https://www.securitytracker.com/id/1032916
https://exchange.xforce.ibmcloud.com/vulnerabilities/90392

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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?

Yes. This vulnerability is being exploited in the wild.