FKIE_CVE-2015-7358

Vulnerability from fkie_nvd - Published: 2017-10-03 01:29 - Updated: 2025-04-20 01:37
Severity ?
7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
The IsDriveLetterAvailable method in Driver/Ntdriver.c in TrueCrypt 7.0, VeraCrypt before 1.15, and CipherShed, when running on Windows, does not properly validate drive letter symbolic links, which allows local users to mount an encrypted volume over an existing drive letter and gain privileges via an entry in the /GLOBAL?? directory.
References
cve@mitre.orghttp://packetstormsecurity.com/files/133878/Truecrypt-7-Derived-Code-Windows-Drive-Letter-Symbolic-Link-Creation-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2015/09/22/7Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2015/09/24/3Issue Tracking, Mailing List, Third Party Advisory
cve@mitre.orghttps://code.google.com/p/google-security-research/issues/detail?id=538Third Party Advisory
cve@mitre.orghttps://veracrypt.codeplex.com/wikipage?title=Release%20NotesRelease Notes, Vendor Advisory
cve@mitre.orghttps://www.exploit-db.com/exploits/38403/Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/133878/Truecrypt-7-Derived-Code-Windows-Drive-Letter-Symbolic-Link-Creation-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2015/09/22/7Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2015/09/24/3Issue Tracking, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://code.google.com/p/google-security-research/issues/detail?id=538Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://veracrypt.codeplex.com/wikipage?title=Release%20NotesRelease Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/38403/Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
ciphershed ciphershed *
idrix veracrypt *
truecrypt truecrypt 7.0
microsoft windows *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ciphershed:ciphershed:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3D960C67-AE15-4CA6-8421-AAD0AEB18E29",
              "versionEndIncluding": "0.7.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:idrix:veracrypt:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "95F04B78-6A14-4F91-81DA-BF22FC44F692",
              "versionEndIncluding": "1.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:truecrypt:truecrypt:7.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "1F9FC5F7-6BCB-4F28-BB8F-C8A5C77662DC",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2CF61F35-5905-4BA9-AD7E-7DB261D2F256",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The IsDriveLetterAvailable method in Driver/Ntdriver.c in TrueCrypt 7.0, VeraCrypt before 1.15, and CipherShed, when running on Windows, does not properly validate drive letter symbolic links, which allows local users to mount an encrypted volume over an existing drive letter and gain privileges via an entry in the /GLOBAL?? directory."
    },
    {
      "lang": "es",
      "value": "El m\u00e9todo IsDriveLetterAvailable en Driver/Ntdriver.c en TrueCrypt 7.0, Veracrypt en versiones anteriores a la 1.15 y CipherShed, cuando se ejecuta en Windows, no valida correctamente los enlaces simb\u00f3licos de las letras de las unidades de disco, lo que permite a los usuarios locales montar un volumen cifrado en una letra de unidad existente y obtener privilegios mediante una entrada en el directorio /GLOBAL??."
    }
  ],
  "id": "CVE-2015-7358",
  "lastModified": "2025-04-20T01:37:25.860",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-10-03T01:29:00.717",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/133878/Truecrypt-7-Derived-Code-Windows-Drive-Letter-Symbolic-Link-Creation-Privilege-Escalation.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
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      "url": "http://www.openwall.com/lists/oss-security/2015/09/22/7"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      ],
      "url": "http://www.openwall.com/lists/oss-security/2015/09/24/3"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      "url": "https://code.google.com/p/google-security-research/issues/detail?id=538"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
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      "url": "https://veracrypt.codeplex.com/wikipage?title=Release%20Notes"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/38403/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/133878/Truecrypt-7-Derived-Code-Windows-Drive-Letter-Symbolic-Link-Creation-Privilege-Escalation.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2015/09/22/7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "http://www.openwall.com/lists/oss-security/2015/09/24/3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://code.google.com/p/google-security-research/issues/detail?id=538"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
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      "url": "https://veracrypt.codeplex.com/wikipage?title=Release%20Notes"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.exploit-db.com/exploits/38403/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Detection rules are retrieved from Rulezet.