certfr_avis - certfr-2017-avi-214

CERTFR-2017-AVI-214

Vulnerability from certfr_avis

Une vulnérabilité a été corrigée dans Samba. Elle permet à un attaquant de provoquer un contournement de la politique de sécurité.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Samba toutes versions 4.0.0 et postérieures utilisant une version embarquée de Heimdal Kerberos

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2017-11103 (GCVE-0-2017-11103)

Vulnerability from cvelistv5

Published

2017-07-13 13:00

Modified

2024-08-05 17:57

Severity ?

CWE

Summary

Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus' Lyre attacks because it obtains service-principal names in a way that violates the Kerberos 5 protocol specification. In _krb5_extract_ticket() the KDC-REP service name must be obtained from the encrypted version stored in 'enc_part' instead of the unencrypted version stored in 'ticket'. Use of the unencrypted version provides an opportunity for successful server impersonation and other attacks. NOTE: this CVE is only for Heimdal and other products that embed Heimdal code; it does not apply to other instances in which this part of the Kerberos 5 protocol specification is violated.

References

URL

Tags

	https://support.apple.com/HT208221	x_refsource_CONFIRM
	http://www.debian.org/security/2017/dsa-3912	vendor-advisory, x_refsource_DEBIAN
	https://support.apple.com/HT208144	x_refsource_CONFIRM
	https://www.orpheus-lyre.info/	x_refsource_MISC
	https://www.freebsd.org/security/advisories/FreeBSD-SA-17:05.heimdal.asc	vendor-advisory, x_refsource_FREEBSD
	http://www.securityfocus.com/bid/99551	vdb-entry, x_refsource_BID
	http://www.securitytracker.com/id/1039427	vdb-entry, x_refsource_SECTRACK
	https://www.samba.org/samba/security/CVE-2017-11103.html	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1038876	vdb-entry, x_refsource_SECTRACK
	https://support.apple.com/HT208112	x_refsource_CONFIRM
	https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0	x_refsource_CONFIRM
	http://www.h5l.org/advisories.html?show=2017-07-11	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T17:57:57.836Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.apple.com/HT208221"
          },
          {
            "name": "DSA-3912",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2017/dsa-3912"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.apple.com/HT208144"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.orpheus-lyre.info/"
          },
          {
            "name": "FreeBSD-SA-17:05",
            "tags": [
              "vendor-advisory",
              "x_refsource_FREEBSD",
              "x_transferred"
            ],
            "url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-17:05.heimdal.asc"
          },
          {
            "name": "99551",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/99551"
          },
          {
            "name": "1039427",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1039427"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.samba.org/samba/security/CVE-2017-11103.html"
          },
          {
            "name": "1038876",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1038876"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.apple.com/HT208112"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.h5l.org/advisories.html?show=2017-07-11"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2017-07-13T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus\u0027 Lyre attacks because it obtains service-principal names in a way that violates the Kerberos 5 protocol specification. In _krb5_extract_ticket() the KDC-REP service name must be obtained from the encrypted version stored in \u0027enc_part\u0027 instead of the unencrypted version stored in \u0027ticket\u0027. Use of the unencrypted version provides an opportunity for successful server impersonation and other attacks. NOTE: this CVE is only for Heimdal and other products that embed Heimdal code; it does not apply to other instances in which this part of the Kerberos 5 protocol specification is violated."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-11-20T14:57:01",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.apple.com/HT208221"
        },
        {
          "name": "DSA-3912",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2017/dsa-3912"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.apple.com/HT208144"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.orpheus-lyre.info/"
        },
        {
          "name": "FreeBSD-SA-17:05",
          "tags": [
            "vendor-advisory",
            "x_refsource_FREEBSD"
          ],
          "url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-17:05.heimdal.asc"
        },
        {
          "name": "99551",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/99551"
        },
        {
          "name": "1039427",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1039427"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.samba.org/samba/security/CVE-2017-11103.html"
        },
        {
          "name": "1038876",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1038876"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.apple.com/HT208112"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.h5l.org/advisories.html?show=2017-07-11"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-11103",
          "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": "Heimdal before 7.4 allows remote attackers to impersonate services with Orpheus\u0027 Lyre attacks because it obtains service-principal names in a way that violates the Kerberos 5 protocol specification. In _krb5_extract_ticket() the KDC-REP service name must be obtained from the encrypted version stored in \u0027enc_part\u0027 instead of the unencrypted version stored in \u0027ticket\u0027. Use of the unencrypted version provides an opportunity for successful server impersonation and other attacks. NOTE: this CVE is only for Heimdal and other products that embed Heimdal code; it does not apply to other instances in which this part of the Kerberos 5 protocol specification is violated."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://support.apple.com/HT208221",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/HT208221"
            },
            {
              "name": "DSA-3912",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2017/dsa-3912"
            },
            {
              "name": "https://support.apple.com/HT208144",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/HT208144"
            },
            {
              "name": "https://www.orpheus-lyre.info/",
              "refsource": "MISC",
              "url": "https://www.orpheus-lyre.info/"
            },
            {
              "name": "FreeBSD-SA-17:05",
              "refsource": "FREEBSD",
              "url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-17:05.heimdal.asc"
            },
            {
              "name": "99551",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/99551"
            },
            {
              "name": "1039427",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1039427"
            },
            {
              "name": "https://www.samba.org/samba/security/CVE-2017-11103.html",
              "refsource": "CONFIRM",
              "url": "https://www.samba.org/samba/security/CVE-2017-11103.html"
            },
            {
              "name": "1038876",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1038876"
            },
            {
              "name": "https://support.apple.com/HT208112",
              "refsource": "CONFIRM",
              "url": "https://support.apple.com/HT208112"
            },
            {
              "name": "https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0",
              "refsource": "CONFIRM",
              "url": "https://github.com/heimdal/heimdal/releases/tag/heimdal-7.4.0"
            },
            {
              "name": "http://www.h5l.org/advisories.html?show=2017-07-11",
              "refsource": "CONFIRM",
              "url": "http://www.h5l.org/advisories.html?show=2017-07-11"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2017-11103",
    "datePublished": "2017-07-13T13:00:00",
    "dateReserved": "2017-07-07T00:00:00",
    "dateUpdated": "2024-08-05T17:57:57.836Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted