CVE-2018-11776
Apache Software Foundation Apache Struts
Published 22 Aug 2018 · updated 17 Jun 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, with a remediation deadline of 3 May 2022 for US federal agencies.
Required action: Apply updates per vendor instructions.
Description
Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when alwaysSelectFullNamespace is true (either by user or a plugin like Convention Plugin) and then: results are used with no namespace and in same time, its upper package have no or wildcard namespace and similar to results, same possibility when using url tag which doesn't have value and action set and in same time, its upper package have no or wildcard namespace.
References
- packetstormsecurity.com/files/172830/Apache-Struts-Remote-Code-Execution.html · Third Party Advisory, VDB Entry
- www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-005.txt · Broken Link, Mailing List, Third Party Advisory
- www.oracle.com/technetwork/security-advisory/alert-cve-2018-11776-5072787.html · Patch, Third Party Advisory
- www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html · Patch, Third Party Advisory
- www.securityfocus.com/bid/105125 · Broken Link, Third Party Advisory, VDB Entry
- www.securitytracker.com/id/1041547 · Broken Link, Third Party Advisory, VDB Entry
- www.securitytracker.com/id/1041888 · Broken Link, Third Party Advisory, VDB Entry
- cwiki.apache.org/confluence/display/WW/S2-057 · Issue Tracking, Third Party Advisory
- github.com/hook-s3c/CVE-2018-11776-Python-PoC · Exploit, Third Party Advisory
- lgtm.com/blog/apache_struts_CVE-2018-11776 · Exploit, Third Party Advisory
- lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c%40%3Cannounce.apache.org%3E · Mailing List
- psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0012 · Third Party Advisory
- security.netapp.com/advisory/ntap-20180822-0001/ · Third Party Advisory
- security.netapp.com/advisory/ntap-20181018-0002/ · Third Party Advisory
- www.exploit-db.com/exploits/45260/ · Exploit, Third Party Advisory, VDB Entry
- www.exploit-db.com/exploits/45262/ · Exploit, Third Party Advisory, VDB Entry
- www.exploit-db.com/exploits/45367/ · Exploit, Third Party Advisory, VDB Entry
- www.oracle.com/security-alerts/cpujul2020.html · Third Party Advisory
- www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html · Patch, Third Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-11776 · US Government Resource