fkie_cve-2025-49832
Vulnerability from fkie_nvd
Published
2025-08-01 18:15
Modified
2025-08-04 15:06
Summary
Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in `asterisk/res/res_stir_shaken /verification.c` that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versions 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 and 22.5.1.
Impacted products
Vendor Product Version



{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in `asterisk/res/res_stir_shaken /verification.c` that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versions 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 and 22.5.1."
    },
    {
      "lang": "es",
      "value": "Asterisk es un kit de herramientas de telefon\u00eda y centralitas privadas de c\u00f3digo abierto. En las versiones hasta la 18.26.2 (incluida), entre las 20.00.0 y 20.15.0, 20.7-cert6, 21.00.0 y 22.00.0 a 22.5.0, existe una condici\u00f3n de denegaci\u00f3n de servicio (DoS) remota y un posible RCE en `asterisk/res/res_stir_shaken /verification.c` que puede explotarse cuando un atacante puede configurar un encabezado de identidad arbitrario, o si STIR/SHAKEN est\u00e1 habilitado, con la verificaci\u00f3n configurada en el perfil SIP asociado al endpoint atacado. Esto se ha corregido en las versiones 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 y 22.5.1."
    }
  ],
  "id": "CVE-2025-49832",
  "lastModified": "2025-08-04T15:06:15.833",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-08-01T18:15:52.667",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-mrq5-74j5-f5cr"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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