CVE-2020-16846
An issue was discovered in SaltStack Salt through 3002. Sending crafted web requests to the Salt API, with the SSH client enabled, can result in shell injection.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
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
💥 Exploits públicos
Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.
- Módulo de Metasploit (exploit fiable y al alcance de cualquiera) · SaltStack Salt REST API Arbitrary Command Execution
- Plantilla de Nuclei (detección automática y masiva) · SaltStack <=3002 - Shell Injection
- Prueba de concepto en GitHub (no verificada) · Lista de pruebas de concepto en GitHub
⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.
🎯 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 access95 % - Impacto principal
T1059Command and Scripting Interpreterexecution95 %
Inyección de shell (CWE-78) en API de Salt accesible remotamente sin autenticación (AV:N/PR:N/UI:N). Permite ejecución de comandos arbitrarios (T1059) y potencial acceso no autorizado (T1078).
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 (4)
CWE
- CWE-78
- CWE-78
Referencias
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00029.html
- http://packetstormsecurity.com/files/160039/SaltStack-Salt-REST-API-Arbitrary-Command-Execution.html
- https://github.com/saltstack/salt/releases
- https://lists.debian.org/debian-lts-announce/2020/12/msg00007.html
- https://lists.debian.org/debian-lts-announce/2022/01/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TPOGB2F6XUAIGFDTOCQDNB2VIXFXHWMA/
- https://security.gentoo.org/glsa/202011-13
- https://www.debian.org/security/2021/dsa-4837
- https://www.saltstack.com/blog/on-november-3-2020-saltstack-publicly-disclosed-three-new-cves/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1379/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1380/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1381/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1382/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1383/
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00029.html
- http://packetstormsecurity.com/files/160039/SaltStack-Salt-REST-API-Arbitrary-Command-Execution.html
- https://github.com/saltstack/salt/releases
- https://lists.debian.org/debian-lts-announce/2020/12/msg00007.html
- https://lists.debian.org/debian-lts-announce/2022/01/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TPOGB2F6XUAIGFDTOCQDNB2VIXFXHWMA/
- https://security.gentoo.org/glsa/202011-13
- https://www.debian.org/security/2021/dsa-4837
- https://www.saltstack.com/blog/on-november-3-2020-saltstack-publicly-disclosed-three-new-cves/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1379/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1380/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1381/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1382/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1383/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-16846
JSON original (NVD)
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