PT-2016-3206 · Apache · Apache Struts

Published 2016-04-12 · Updated 2022-05-14 · CVE-2016-4461

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Apache Struts versions 2.x through 2.3.28

Description The issue allows remote attackers to execute arbitrary code via a %{} sequence in a tag attribute, also known as forced double OGNL evaluation. This is due to insufficient input validation. The vulnerability can be exploited by a remote attacker to execute arbitrary code using the %{} sequence in a tag attribute.

Recommendations For Apache Struts versions 2.x through 2.3.28, update to version 2.3.29 or later to resolve the issue. As a temporary workaround, consider restricting the use of tag attributes that may contain the %{} sequence to minimize the risk of exploitation.

Fix

RCE

Special Elements Injection

Weakness Enumeration

CWE-20

CWE-74

Related Identifiers

BDU:2017-02491

CVE-2016-4461

GHSA-864W-R5QJ-H6FJ

Affected Products

Apache Struts

References · 8

• https://osv.dev/vulnerability/CVE-2016-4461 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-4461 · Security Note
• https://struts.apache.org/docs/s2-036.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-02491 · Security Note
• https://osv.dev/vulnerability/GHSA-864w-r5qj-h6fj · Vendor Advisory
• https://github.com/apache/struts · Note
• https://security.netapp.com/advisory/ntap-20180629-0004 · Note
• http://securityfocus.com/bid/91277 · Note