Apache Struts 2 is vulnerable to remote code execution

Overview

Apache Struts, versions 2.3.5 - 2.3.31 and 2.5 - 2.5.10, is vulnerable to code injection leading to remote code execution (RCE).

Description

CWE-94: Improper Control of Generation of Code - CVE-2017-5638

An attacker can execute arbitrary OGNL code included in the “Content-Type” header of a file upload.

This vulnerability is actively being exploited.

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Impact

An unauthenticated remote attacker can execute arbitrary commands with the privileges of the user running Apache Struts.

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Solution

Apply an update
Update to Apache Struts 2.3.32 or 2.5.10.1

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If you are unable to update Struts, please see the workaround suggested by Apache here.

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Vendor Information

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Apache Struts Affected

Updated: March 14, 2017

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

Vendor References

• <https://cwiki.apache.org/confluence/display/WW/S2-045&gt;

CVSS Metrics

Group	Score	Vector
Base	10	AV:N/AC:L/Au:N/C:C/I:C/A:C
Temporal	8.7	E:H/RL:OF/RC:C
Environmental	8.7	CDP:N/TD:H/CR:ND/IR:ND/AR:ND

References

• <https://cwiki.apache.org/confluence/display/WW/S2-045&gt;
• <http://blog.talosintelligence.com/2017/03/apache-0-day-exploited.html&gt;
• <https://www.imperva.com/blog/2017/03/cve-2017-5638-new-remote-code-execution-rce-vulnerability-in-apache-struts-2/&gt;
• <http://blog.trendmicro.com/trendlabs-security-intelligence/cve-2017-5638-apache-struts-vulnerability-remote-code-execution/&gt;
• <https://github.com/rapid7/metasploit-framework/issues/8064&gt;
• <https://www.exploit-db.com/exploits/41570/&gt;
• <https://cwe.mitre.org/data/definitions/94.html&gt;

Acknowledgements

This document was written by Trent Novelly.

Other Information

CVE IDs:	CVE-2017-5638
Date Public:	2017-03-06 Date First Published: