FKIE_CVE-2010-4020

Vulnerability from fkie_nvd - Published: 2010-12-02 16:22 - Updated: 2026-06-16 23:23
Severity
6.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Summary
MIT Kerberos 5 (aka krb5) 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a (1) AD-SIGNEDPATH or (2) AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte stream-cipher operations.
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.fedoraproject.org/pipermail/package-announce/2010-December/051976.html
cve@mitre.orghttp://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.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/69608
cve@mitre.orghttp://secunia.com/advisories/42399Vendor Advisory
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.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlPatch, Vendor Advisory
cve@mitre.orghttp://www.redhat.com/support/errata/RHSA-2010-0925.html
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/45117
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/2010/3095
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.fedoraproject.org/pipermail/package-announce/2010-December/051976.html
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.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/69608
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/42399Vendor Advisory
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.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.redhat.com/support/errata/RHSA-2010-0925.html
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/45117
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/2010/3095
af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2010/3118
Impacted products
Vendor Product Version
mit kerberos_5 1.8
mit kerberos_5 1.8.1
mit kerberos_5 1.8.2
mit kerberos_5 1.8.3
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_5:1.8:*:*:*:*:*:*:*",
              "matchCriteriaId": "36823B2B-5C72-4FF3-9301-FB263EB8CE09",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mit:kerberos_5:1.8.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "59AFA33E-FEBC-45F5-9EC6-8AA363163FB5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mit:kerberos_5:1.8.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "04D83332-B2FD-4E86-A76C-C3F1CD3B3A31",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mit:kerberos_5:1.8.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "758A0011-20ED-414A-9DF3-50A161DF8BC2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "MIT Kerberos 5 (aka krb5) 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a (1) AD-SIGNEDPATH or (2) AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte stream-cipher operations."
    },
    {
      "lang": "es",
      "value": "MIT Kerberos 5 (tambi\u00e9n conocido como krb5) v1.8.x hasta v1.8.3 no rechaza las sumas de comprobaci\u00f3n RC4 (clave de derivaci\u00f3n), lo que podr\u00eda permitir a usuarios remotos autenticados falsificar un (1) AD-SIGNEDPATH o (2) la firma AD-KDC-ISSUED, y posiblemente obtener privilegios, aprovechando el espacio de claves peque\u00f1as que resultan de ciertas operaciones de cifrado de flujo de un byte (one-byte)."
    }
  ],
  "id": "CVE-2010-4020",
  "lastModified": "2026-06-16T23:23:59.700",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.0"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2010-12-02T16:22:21.207",
  "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.fedoraproject.org/pipermail/package-announce/2010-December/051976.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.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/69608"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/42399"
    },
    {
      "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",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.redhat.com/support/errata/RHSA-2010-0925.html"
    },
    {
      "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/45117"
    },
    {
      "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/2010/3095"
    },
    {
      "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.fedoraproject.org/pipermail/package-announce/2010-December/051976.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.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/69608"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/42399"
    },
    {
      "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",
      "tags": [
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        "Vendor Advisory"
      ],
      "url": "http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "http://www.securityfocus.com/archive/1/514953/100/0/threaded"
    },
    {
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      "url": "http://www.securityfocus.com/archive/1/517739/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/45117"
    },
    {
      "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/2010/3095"
    },
    {
      "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-310"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.