GitHub Advisoryadvisory · Maven

GHSA-v8j6-6c2r-r27c Expression Language Injection in Apache Struts

CRITICAL Published 2022-04-13 Modified 2022-07-27 Official page ↗
Aliases
CVE-2021-31805
Ecosystem
Maven
Packages
org.apache.struts:struts2-core
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-917
Reviewed
2022-04-22

Affected packages

• Maven org.apache.struts:struts2-core: >= 2.0.0, < 2.5.30 → fixed in 2.5.30

Description

The fix issued for CVE-2020-17530 was incomplete. So from Apache Struts 2.0.0 to 2.5.29, still some of the tag’s attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. Using forced OGNL evaluation on untrusted user input can lead to a Remote Code Execution and security degradation.

Related

Alias · CVE (1)

  • CVE-2021-31805 The fix issued for CVE-2020-17530 was incomplete. vulnerability

Weakness · CWE (1)

  • CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement weakness

References