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CVE-2021-31805

Published: 12 April 2022

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.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
libstruts1.2-java
Launchpad, Ubuntu, Debian
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Not vulnerable
(debian: specific to 2.x)
xenial Does not exist

bionic Does not exist

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H