CVE-2018-11776
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.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 8.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 100%
- Percentil entre todas las CVEs puntuadas: 100
- Fecha de la puntuación: 29/9/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
CISA KEV — explotada activamente
- Añadida al catálogo: 3/11/2021
- Plazo de remediación: 3/5/2022
- Uso conocido en ransomware: Unknown
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access85 % - Impacto principal
T1059.007JavaScriptexecution90 % - Impacto secundario
T1565.001Stored Data Manipulationimpact70 %
RCE en Struts por fallo de namespace sin autenticación (AV:N, PR:N) vía configuración vulnerable; impacto: ejecución de código Java y potencial manipulación de datos.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (8)
CWE
- NVD-CWE-noinfo
Referencias
- http://packetstormsecurity.com/files/172830/Apache-Struts-Remote-Code-Execution.html
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-005.txt
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2018-11776-5072787.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/105125
- http://www.securitytracker.com/id/1041547
- http://www.securitytracker.com/id/1041888
- https://cwiki.apache.org/confluence/display/WW/S2-057
- https://github.com/hook-s3c/CVE-2018-11776-Python-PoC
- https://lgtm.com/blog/apache_struts_CVE-2018-11776
- https://lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c%40%3Cannounce.apache.org%3E
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0012
- https://security.netapp.com/advisory/ntap-20180822-0001/
- https://security.netapp.com/advisory/ntap-20181018-0002/
- https://www.exploit-db.com/exploits/45260/
- https://www.exploit-db.com/exploits/45262/
- https://www.exploit-db.com/exploits/45367/
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- http://packetstormsecurity.com/files/172830/Apache-Struts-Remote-Code-Execution.html
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-005.txt
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2018-11776-5072787.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/105125
- http://www.securitytracker.com/id/1041547
- http://www.securitytracker.com/id/1041888
- https://cwiki.apache.org/confluence/display/WW/S2-057
- https://github.com/hook-s3c/CVE-2018-11776-Python-PoC
- https://lgtm.com/blog/apache_struts_CVE-2018-11776
- https://lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c%40%3Cannounce.apache.org%3E
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0012
- https://security.netapp.com/advisory/ntap-20180822-0001/
- https://security.netapp.com/advisory/ntap-20181018-0002/
- https://www.exploit-db.com/exploits/45260/
- https://www.exploit-db.com/exploits/45262/
- https://www.exploit-db.com/exploits/45367/
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-11776
JSON original (NVD)
Mostrar
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"value": "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."
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