#VU88746 Permissions, Privileges, and Access Controls in Apache Struts - CVE-2012-4387

Vulnerability identifier: #VU88746

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-4387

CWE-ID: CWE-264

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 a denial of service attack.

The vulnerability exists due to application does not properly impose security restrictions. A remote attacker can cause a denial of service (CPU consumption) via a long parameter name, which is processed as an OGNL expression.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Struts: 2.0.0 - 2.3.4

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External links
https://secunia.com/advisories/50420
https://struts.apache.org/2.x/docs/s2-011.html
https://www.openwall.com/lists/oss-security/2012/09/01/4
https://www.openwall.com/lists/oss-security/2012/09/01/5
https://www.securityfocus.com/bid/55346
https://exchange.xforce.ibmcloud.com/vulnerabilities/78183
https://issues.apache.org/jira/browse/WW-3860

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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.