gsd-2016-2126
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.
Aliases
Aliases
CVE-2016-2126


To clipboard 

{
  "GSD": {
    "alias": "CVE-2016-2126",
    "description": "Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.",
    "id": "GSD-2016-2126",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-2126.html",
      "https://www.debian.org/security/2016/dsa-3740",
      "https://access.redhat.com/errata/RHSA-2017:1265",
      "https://access.redhat.com/errata/RHSA-2017:0744",
      "https://access.redhat.com/errata/RHSA-2017:0662",
      "https://access.redhat.com/errata/RHSA-2017:0495",
      "https://access.redhat.com/errata/RHSA-2017:0494",
      "https://ubuntu.com/security/CVE-2016-2126",
      "https://advisories.mageia.org/CVE-2016-2126.html",
      "https://security.archlinux.org/CVE-2016-2126",
      "https://alas.aws.amazon.com/cve/html/CVE-2016-2126.html",
      "https://linux.oracle.com/cve/CVE-2016-2126.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-2126"
      ],
      "details": "Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.",
      "id": "GSD-2016-2126",
      "modified": "2023-12-13T01:21:20.016430Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2016-2126",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.samba.org/samba/security/CVE-2016-2126.html",
            "refsource": "CONFIRM",
            "url": "https://www.samba.org/samba/security/CVE-2016-2126.html"
          },
          {
            "name": "1037495",
            "refsource": "SECTRACK",
            "url": "http://www.securitytracker.com/id/1037495"
          },
          {
            "name": "RHSA-2017:0495",
            "refsource": "REDHAT",
            "url": "http://rhn.redhat.com/errata/RHSA-2017-0495.html"
          },
          {
            "name": "RHSA-2017:0494",
            "refsource": "REDHAT",
            "url": "http://rhn.redhat.com/errata/RHSA-2017-0494.html"
          },
          {
            "name": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730",
            "refsource": "CONFIRM",
            "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730"
          },
          {
            "name": "RHSA-2017:1265",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2017:1265"
          },
          {
            "name": "94994",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/94994"
          },
          {
            "name": "RHSA-2017:0744",
            "refsource": "REDHAT",
            "url": "http://rhn.redhat.com/errata/RHSA-2017-0744.html"
          },
          {
            "name": "RHSA-2017:0662",
            "refsource": "REDHAT",
            "url": "http://rhn.redhat.com/errata/RHSA-2017-0662.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.4.8",
                "versionStartIncluding": "4.4.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.5.3",
                "versionStartIncluding": "4.5.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.3.13",
                "versionStartIncluding": "4.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2016-2126"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-264"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.samba.org/samba/security/CVE-2016-2126.html",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.samba.org/samba/security/CVE-2016-2126.html"
            },
            {
              "name": "1037495",
              "refsource": "SECTRACK",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securitytracker.com/id/1037495"
            },
            {
              "name": "94994",
              "refsource": "BID",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securityfocus.com/bid/94994"
            },
            {
              "name": "RHSA-2017:1265",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2017:1265"
            },
            {
              "name": "RHSA-2017:0744",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://rhn.redhat.com/errata/RHSA-2017-0744.html"
            },
            {
              "name": "RHSA-2017:0662",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://rhn.redhat.com/errata/RHSA-2017-0662.html"
            },
            {
              "name": "RHSA-2017:0495",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://rhn.redhat.com/errata/RHSA-2017-0495.html"
            },
            {
              "name": "RHSA-2017:0494",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://rhn.redhat.com/errata/RHSA-2017-0494.html"
            },
            {
              "name": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-08-29T20:02Z",
      "publishedDate": "2017-05-11T14:29Z"
    }
  }
}


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