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FKIE_CVE-2010-4021

Vulnerability from fkie_nvd - Published: 2010-12-02 16:22 - Updated: 2026-06-16 23:23
Severity
Summary
The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 does not properly restrict the use of TGT credentials for armoring TGS requests, which might allow remote authenticated users to impersonate a client by rewriting an inner request, aka a "KrbFastReq forgery issue."
References
cve@mitre.orghttp://kb.vmware.com/kb/1035108
cve@mitre.orghttp://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
cve@mitre.orghttp://lists.vmware.com/pipermail/security-announce/2011/000133.html
cve@mitre.orghttp://osvdb.org/69607
cve@mitre.orghttp://support.apple.com/kb/HT4581
cve@mitre.orghttp://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txtVendor Advisory
cve@mitre.orghttp://www.mandriva.com/security/advisories?name=MDVSA-2010:246
cve@mitre.orghttp://www.securityfocus.com/archive/1/514953/100/0/threaded
cve@mitre.orghttp://www.securityfocus.com/archive/1/517739/100/0/threaded
cve@mitre.orghttp://www.securityfocus.com/bid/45122
cve@mitre.orghttp://www.securitytracker.com/id?1024803
cve@mitre.orghttp://www.ubuntu.com/usn/USN-1030-1
cve@mitre.orghttp://www.vmware.com/security/advisories/VMSA-2011-0007.html
cve@mitre.orghttp://www.vupen.com/english/advisories/2010/3094
cve@mitre.orghttp://www.vupen.com/english/advisories/2010/3118
af854a3a-2127-422b-91ae-364da2661108http://kb.vmware.com/kb/1035108
af854a3a-2127-422b-91ae-364da2661108http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
af854a3a-2127-422b-91ae-364da2661108http://lists.vmware.com/pipermail/security-announce/2011/000133.html
af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/69607
af854a3a-2127-422b-91ae-364da2661108http://support.apple.com/kb/HT4581
af854a3a-2127-422b-91ae-364da2661108http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txtVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDVSA-2010:246
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/514953/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/517739/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/45122
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1024803
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-1030-1
af854a3a-2127-422b-91ae-364da2661108http://www.vmware.com/security/advisories/VMSA-2011-0007.html
af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2010/3094
af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2010/3118
Impacted products
Vendor Product Version
mit kerberos_5 1.7
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:*",
              "matchCriteriaId": "DFB1190E-BE7A-4C6B-862D-D5747C64E980",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 does not properly restrict the use of TGT credentials for armoring TGS requests, which might allow remote authenticated users to impersonate a client by rewriting an inner request, aka a \"KrbFastReq forgery issue.\""
    },
    {
      "lang": "es",
      "value": "El Centro de distribuci\u00f3n de claves (KDC) en MIT Kerberos 5 (tambi\u00e9n conocido como krb5) v1.7 no restringe correctamente el uso de credenciales TGT para proteger solicitudes  TGS, lo que podr\u00eda permitir a usuarios remotos autenticados suplantar a un cliente mediante la reescritura de una solicitud interior, tambi\u00e9n conocido como \" falsificaci\u00f3n KrbFastReq\""
    }
  ],
  "id": "CVE-2010-4021",
  "lastModified": "2026-06-16T23:23:59.903",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "HIGH",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 2.1,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:H/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2010-12-02T16:22:21.240",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://kb.vmware.com/kb/1035108"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.vmware.com/pipermail/security-announce/2011/000133.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://osvdb.org/69607"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://support.apple.com/kb/HT4581"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:246"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/archive/1/514953/100/0/threaded"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/archive/1/517739/100/0/threaded"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/bid/45122"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securitytracker.com/id?1024803"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.ubuntu.com/usn/USN-1030-1"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.vmware.com/security/advisories/VMSA-2011-0007.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.vupen.com/english/advisories/2010/3094"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.vupen.com/english/advisories/2010/3118"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://kb.vmware.com/kb/1035108"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.vmware.com/pipermail/security-announce/2011/000133.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://osvdb.org/69607"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://support.apple.com/kb/HT4581"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:246"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/archive/1/514953/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/archive/1/517739/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/45122"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id?1024803"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.ubuntu.com/usn/USN-1030-1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.vmware.com/security/advisories/VMSA-2011-0007.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.vupen.com/english/advisories/2010/3094"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.vupen.com/english/advisories/2010/3118"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-16"
        },
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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