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CVE-2026-81689

Estado: AnalizadaAlta (8.7)—

openssl_encrypt versions before 1.4.9 derive the remote-pepper wrap key using unsalted HKDF-SHA256 or bare SHA-256 of the password, allowing identical keys across all users and files. Attackers with access to wrapped pepper blobs can precompute a single dictionary table and perform fleet-wide offline password guessing at hardware speed to recover user passwords.

CVSS

Probabilidad de explotación (EPSS)

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:N/PR:N permite explotación remota sin privilegios (T1190). El vector VC:H revela datos confidenciales; CWE-916 (débil derivación criptográfica) y 'dictionary table' confirman ataque offline a contraseñas (T1110.004: password cracking). El acceso a 'wrapped pepper blobs' expone secretos almacenado

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

User Account ManagementPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkVulnerability ScanningPassword Policies

Tecnologías afectadas (1)

Jahlives — Openssl Encrypt

CWE

Referencias

JSON original (NVD)

Mostrar
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