fkie_cve-2021-45079
Vulnerability from fkie_nvd
Published
2022-01-31 08:15
Modified
2024-11-21 06:31
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Summary
In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication.
References
cve@mitre.orghttps://www.strongswan.org/blog/2022/01/24/strongswan-vulnerability-%28cve-2021-45079%29.html
af854a3a-2127-422b-91ae-364da2661108https://www.strongswan.org/blog/2022/01/24/strongswan-vulnerability-%28cve-2021-45079%29.html
Impacted products
Vendor Product Version
strongswan strongswan *
debian debian_linux 9.0
debian debian_linux 10.0
debian debian_linux 11.0
fedoraproject extra_packages_for_enterprise_linux 7.0
fedoraproject extra_packages_for_enterprise_linux 8.0
fedoraproject extra_packages_for_enterprise_linux 9.0
fedoraproject fedora 34
fedoraproject fedora 35
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
canonical ubuntu_linux 18.04
canonical ubuntu_linux 20.04
canonical ubuntu_linux 21.10


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication."
    },
    {
      "lang": "es",
      "value": "En strongSwan versiones anteriores a 5.9.5, un respondedor malicioso puede enviar un mensaje EAP-Success demasiado pronto sin autenticar realmente al cliente y (en el caso de los m\u00e9todos EAP con autenticaci\u00f3n mutua y autenticaci\u00f3n s\u00f3lo EAP para IKEv2) incluso sin autenticaci\u00f3n del servidor"
    }
  ],
  "id": "CVE-2021-45079",
  "lastModified": "2024-11-21T06:31:54.450",
  "metrics": {
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
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          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P",
          "version": "2.0"
        },
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        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-01-31T08:15:07.307",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://www.strongswan.org/blog/2022/01/24/strongswan-vulnerability-%28cve-2021-45079%29.html"
    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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