CVE-2017-7921: fallo crítico en Hikvision Cameras
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
100Vexday Risk Score
Corrige ahora. Ella está bajo explotación confirmada por CISA y tiene exploit funcional público.
ssvc Actcvss 9.8epss 100%
de la publicación al arma1087 días
Publicada en NVD6 may
1ª PoC+1087d
metasploit+140d
CISA KEV+3225d
Acción exigida por CISAplazo federal: 2026-03-26
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
En resumen
Cámaras de seguridad Hikvision fabricadas entre 2014 y 2016 tienen una falla de autenticación que permite a atacantes eludir las defensas y acceder al dispositivo sin permiso, pudiendo ver o controlar la cámara.
Detalle técnico
Una vulnerabilidad de autenticación inadecuada afecta múltiples series de cámaras IP Hikvision (DS-2CD2xx2F-I, DS-2CD2xx0F-I, DS-2CD2xx2FWD, DS-2CD4x2xFWD, DS-2CD4xx5, DS-2DFx y DS-2CD63xx) en versiones de firmware de 5.2.0 hasta 5.4.5, permitiendo que atacantes eludan mecanismos de autenticación sin credenciales válidas. Esto habilita escalación de privilegios y acceso no autorizado a funciones del dispositivo y datos de video grabado.
Resumen generado y traducido por IA a partir de la descripción oficial.
El análisis completo de esta CVE está disponible en portugués →
An Improper Authentication issue was discovered in Hikvision DS-2CD2xx2F-I Series V5.2.0 build 140721 to V5.4.0 build 160530, DS-2CD2xx0F-I Series V5.2.0 build 140721 to V5.4.0 Build 160401, DS-2CD2xx2FWD Series V5.3.1 build 150410 to V5.4.4 Build 161125, DS-2CD4x2xFWD Series V5.2.0 build 140721 to V5.4.0 Build 160414, DS-2CD4xx5 Series V5.2.0 build 140721 to V5.4.0 Build 160421, DS-2DFx Series V5.2.0 build 140805 to V5.4.5 Build 160928, and DS-2CD63xx Series V5.0.9 build 140305 to V5.3.5 Build 160106 devices. The improper authentication vulnerability occurs when an application does not adequately or correctly authenticate users. This may allow a malicious user to escalate his or her privileges on the system and gain access to sensitive information.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
n/a · Hikvision CamerasPoCs públicas encontradas — 53
githubgithub.com/chrisjd20/hikvision_CVE-2017-7921_auth_bypass_config_decryptor★ 116githubgithub.com/JrDw0/CVE-2017-7921-EXP★ 102githubgithub.com/K3ysTr0K3R/CVE-2017-7921-EXPLOIT★ 46githubgithub.com/BurnyMcDull/CVE-2017-7921★ 36githubgithub.com/voidsshadows/Hikvision-City-Hunter★ 19githubgithub.com/MisakaMikato/cve-2017-7921-golang★ 12githubgithub.com/201646613/CVE-2017-7921★ 6githubgithub.com/kooroshsanaei/HikVision-CVE-2017-7921★ 6githubgithub.com/Wyl-cmd/CVE-2017-7921-Research-Toolkit★ 5githubgithub.com/aengussong/hikvision_probe★ 3githubgithub.com/krypton612/hikivision★ 2githubgithub.com/KelvinWin10/CVE-2017-7921-rewrite★ 1githubgithub.com/saaydmr/hikvision-exploiter★ 1githubgithub.com/0xf3d0rq/CVE-2017-7921★ 1githubgithub.com/inj3ction/CVE-2017-7921-EXP★ 0githubgithub.com/p4tq/hikvision_CVE-2017-7921_auth_bypass_config_decryptor★ 0githubgithub.com/AnonkiGroup/AnonHik★ 0githubgithub.com/b3pwn3d/CVE-2017-7921★ 0githubgithub.com/GabrielAvls/CVE-2017-7921★ 0githubgithub.com/lastvocher/Hikvision-CVE-2017-7921-decryptor★ 0githubgithub.com/mverschu/CVE-2017-7921★ 0vulncheckvulncheck.com/xdb/c81107631dddno verificadovulncheckvulncheck.com/xdb/0053c8347551no verificadovulncheckvulncheck.com/xdb/a916dbfd7e71no verificadovulncheckvulncheck.com/xdb/329a3cf59e4ano verificadovulncheckvulncheck.com/xdb/e07fd3559fccno verificadovulncheckvulncheck.com/xdb/070707da105bno verificadovulncheckvulncheck.com/xdb/36583e0cb34fno verificadovulncheckvulncheck.com/xdb/2ae43fbea053no verificadovulncheckvulncheck.com/xdb/26aff008accano verificadovulncheckvulncheck.com/xdb/eec829707014no verificadovulncheckvulncheck.com/xdb/32a34f6533d8no verificadovulncheckvulncheck.com/xdb/6d33c53d16c9no verificadovulncheckvulncheck.com/xdb/bfc9c8fef307no verificadovulncheckvulncheck.com/xdb/87f825631bf7no verificadovulncheckvulncheck.com/xdb/4cd7c6e28839no verificadovulncheckvulncheck.com/xdb/891f8c5baa5cno verificadovulncheckvulncheck.com/xdb/6f4dd8bf1b5ano verificadovulncheckvulncheck.com/xdb/0bf7b1d4ce0eno verificadovulncheckvulncheck.com/xdb/af9ec4e77da5no verificadovulncheckvulncheck.com/xdb/d54d5776a319no verificadovulncheckvulncheck.com/xdb/c3185223e959no verificadovulncheckvulncheck.com/xdb/d68843daf860no verificadovulncheckvulncheck.com/xdb/d79e9541cde2no verificadovulncheckvulncheck.com/xdb/c0c4085f9bfcno verificadovulncheckvulncheck.com/xdb/3d1112f04ef6no verificadovulncheckvulncheck.com/xdb/3ba708cf75e3no verificadovulncheckvulncheck.com/xdb/fa74de3a21d2no verificadovulncheckvulncheck.com/xdb/ef959f6bd8eano verificadovulncheckvulncheck.com/xdb/b44e7fbc0ce1no verificadovulncheckvulncheck.com/xdb/0f35ff80fe69no verificadovulncheckvulncheck.com/xdb/bb9f0ce3ce8dno verificadovulncheckvulncheck.com/xdb/36a31ca48ed8no verificado⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
Referencias
https://ghostbin.com/paste/q2vq2https://ics-cert.us-cert.gov/advisories/ICSA-17-124-01https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-7921https://www.hikvision.com/cn/support/CybersecurityCenter/SecurityNotices/20170314/https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification--privilege-escalating-vulnerability-in-cer/https://www.hikvision.com/us-en/support/document-center/special-notices/privilege-escalating-vulnerability-in-certain-hikvision-ip-cameras/http://www.hikvision.com/us/about_10805.htmlhttp://www.securityfocus.com/bid/98313