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CVE-2019-1981

Estado: ModificadaMedia (5.8)—

A vulnerability in the normalization functionality of Cisco Firepower Threat Defense Software, Cisco FirePOWER Services Software for ASA, and Cisco Firepower Management Center Software could allow an unauthenticated, remote attacker to bypass filtering protections. The vulnerability is due to insufficient normalization of a text-based payload. An attacker could exploit this vulnerability by sending traffic that contains specifically obfuscated payloads through an affected device. An exploit could allow the attacker to bypass filtering and deliver malicious payloads to protected systems that would otherwise be blocked.

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 (3)

Cisco — Firepower Services Software FOR ASACisco — Secure Firewall Management CenterCisco — Secure Firewall Threat Defense

CWE

Referencias

JSON original (NVD)

Mostrar
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          "options": [
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              "exploitation": "none"
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            },
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-11-19T17:22:28.026981Z"
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  "published": "2019-11-05T20:15:11.783",
  "references": [
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          "value": "CWE-264"
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  "descriptions": [
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      "lang": "en",
      "value": "A vulnerability in the normalization functionality of Cisco Firepower Threat Defense Software, Cisco FirePOWER Services Software for ASA, and Cisco Firepower Management Center Software could allow an unauthenticated, remote attacker to bypass filtering protections. The vulnerability is due to insufficient normalization of a text-based payload. An attacker could exploit this vulnerability by sending traffic that contains specifically obfuscated payloads through an affected device. An exploit could allow the attacker to bypass filtering and deliver malicious payloads to protected systems that would otherwise be blocked."
    },
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      "lang": "es",
      "value": "Una vulnerabilidad en la funcionalidad de normalización del software Cisco Firepower Threat Defense, el software Cisco FirePOWER Services para ASA y el software Cisco Firepower Management Center, podría permitir a un atacante remoto no autenticado omitir las protecciones de filtrado. La vulnerabilidad es debido a la insuficiente normalización de una carga útil basada en texto. Un atacante podría explotar esta vulnerabilidad mediante el envío de tráfico que contenga cargas útiles especialmente ofuscadas por medio de un dispositivo afectado. Una explotación podría permitir al atacante evitar el filtrado y entregar cargas maliciosas hacia los sistemas protegidos que de otra manera se bloquearían."
    }
  ],
  "lastModified": "2026-08-11T19:37:30.880",
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