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CVE-2020-11945

Estado: ModificadaCrítica (9.8)—

An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials).

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).

Tecnologías afectadas (5)

Canonical — Ubuntu LinuxDebian — Debian LinuxFedoraproject — FedoraOpensuse — LeapSquid-cache — Squid

CWE

Referencias

JSON original (NVD)

Mostrar
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      "description": [
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          "lang": "en",
          "value": "CWE-190"
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  "descriptions": [
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      "lang": "en",
      "value": "An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter (a short integer). Remote code execution may occur if the pooled token credentials are freed (instead of replayed as valid credentials)."
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      "lang": "es",
      "value": "Se detectó un problema en Squid versiones anteriores a 5.0.2. Un atacante remoto puede reproducir un nonce Digest Autenticación rastreado para conseguir acceso a recursos que de otra manera están restringidos. Esto ocurre porque el atacante puede desbordar el contador de referencia nonce (un entero corto). Una ejecución de código remota puede presentarse si las credenciales de token agrupadas son liberadas (en lugar de reproducirse como credenciales validas)."
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  "lastModified": "2026-06-17T02:51:06.457",
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