CVE-2021-31805

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.

Published: Apr 12, 2022
Updated: May 9, 2024
CVE: CVE-2021-31805
GHSA: GHSA-v8j6-6c2r-r27c
Severity: Critical
Exploit:

CVSS v3:

Severity: Critical
Score: 9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

Severity: High
Score: 7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P

CWEs:

CWE-917

OWASP TOP 10:

A1 - Injection

Affected Software
References

Software	From	Fixed in
apache / struts	2.0.0	2.5.29.x
org.apache.struts / struts2-core	2.0.0	2.5.30

http://www.openwall.com/lists/oss-security/2022/04/12/6
https://cwiki.apache.org/confluence/display/WW/S2-062
https://security.netapp.com/advisory/ntap-20220420-0001/
https://www.oracle.com/security-alerts/cpujul2022.html

Vulnerability Database

CVE-2021-31805

Deep Security Visibility Without the Complexity