fkie_cve-2017-8495
Vulnerability from fkie_nvd
Published
2017-07-11 21:29
Modified
2025-04-20 01:37
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to bypass Extended Protection for Authentication when Kerberos fails to prevent tampering with the SNAME field during ticket exchange, aka "Kerberos SNAME Security Feature Bypass Vulnerability" or Orpheus' Lyre.
References
secure@microsoft.comhttp://www.securityfocus.com/bid/99424Third Party Advisory, VDB Entry
secure@microsoft.comhttp://www.securitytracker.com/id/1038862Third Party Advisory, VDB Entry
secure@microsoft.comhttps://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8495Patch, Vendor Advisory
secure@microsoft.comhttps://www.orpheus-lyre.info/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/99424Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1038862Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8495Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.orpheus-lyre.info/Third Party Advisory
Impacted products
Vendor Product Version
microsoft windows_10 -
microsoft windows_10 1511
microsoft windows_10 1607
microsoft windows_10 1703
microsoft windows_7 *
microsoft windows_8.1 *
microsoft windows_rt_8.1 *
microsoft windows_server_2008 *
microsoft windows_server_2008 r2
microsoft windows_server_2012 *
microsoft windows_server_2012 r2
microsoft windows_server_2016 *


To clipboard 

{
  "configurations": [
    {
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        {
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              "matchCriteriaId": "21540673-614A-4D40-8BD7-3F07723803B0",
              "vulnerable": true
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          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to bypass Extended Protection for Authentication when Kerberos fails to prevent tampering with the SNAME field during ticket exchange, aka \"Kerberos SNAME Security Feature Bypass Vulnerability\" or Orpheus\u0027 Lyre."
    },
    {
      "lang": "es",
      "value": "Microsoft Windows 7 SP1, Windows Server 2008 SP2 y R2 SP1, Windows 8.1 y Windows RT 8.1, Windows Server 2012 y R2, Windows 10 versiones Gold, 1511, 1607 y 1703, y Windows Server 2016, permiten a un atacante omitir la Protecci\u00f3n Ampliada para la Autenticaci\u00f3n cuando Kerberos no puede evitar la manipulaci\u00f3n del campo SNAME durante el intercambio de tickets, tambi\u00e9n se conoce como  \"Kerberos SNAME Security Feature Bypass Vulnerability\" o Orpheus\u0027 Lyre."
    }
  ],
  "id": "CVE-2017-8495",
  "lastModified": "2025-04-20T01:37:25.860",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
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        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-07-11T21:29:00.593",
  "references": [
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      "source": "secure@microsoft.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/99424"
    },
    {
      "source": "secure@microsoft.com",
      "tags": [
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      "url": "http://www.securitytracker.com/id/1038862"
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      "tags": [
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      "url": "https://www.orpheus-lyre.info/"
    },
    {
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    {
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      "tags": [
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      "tags": [
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      "url": "https://www.orpheus-lyre.info/"
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  ],
  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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