#VU88741 Stack-based buffer overflow in Apache Struts - CVE-2016-4436

Vulnerability identifier: #VU88741

Vulnerability risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2016-4436

CWE-ID: CWE-121

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 execute arbitrary code on the target system.

The vulnerability exists via vectors related to improper action name clean up.. A remote unauthenticated attacker can trigger the vulnerability and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Struts: 2.0.0 - 2.5

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External links
https://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
https://www.securityfocus.com/bid/91280
https://www-01.ibm.com/support/docview.wss?uid=ssg1S1009282
https://www-01.ibm.com/support/docview.wss?uid=swg21987854
https://struts.apache.org/docs/s2-035.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.