certfr_avis - CERTFR-2022-AVI-096

CERTFR-2022-AVI-096

Vulnerability from certfr_avis - Published: - Updated:

De multiples vulnérabilités ont été découvertes dans Samba. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service et une atteinte à l'intégrité des données.

Solution

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

None

Impacted products

Vendor	Product	Description
Samba	N/A	Samba versions antérieures à 4.14.12
Samba	N/A	Samba versions antérieures à 4.15.5
Samba	N/A	Samba versions antérieures à 4.13.17

References

Title

Publication Time

Tags

Bulletin de sécurité Samba CVE-2021-44141 du 31 janvier 2022	None	vendor-advisory
Bulletin de sécurité Samba CVE-2021-44142 du 31 janvier 2022	None	vendor-advisory
Bulletin de sécurité Samba CVE-2022-0336 du 31 janvier 2022	None	vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Samba versions ant\u00e9rieures \u00e0 4.14.12",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Samba",
          "scada": false
        }
      }
    },
    {
      "description": "Samba versions ant\u00e9rieures \u00e0 4.15.5",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Samba",
          "scada": false
        }
      }
    },
    {
      "description": "Samba versions ant\u00e9rieures \u00e0 4.13.17",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Samba",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2021-44141",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-44141"
    },
    {
      "name": "CVE-2022-0336",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-0336"
    },
    {
      "name": "CVE-2021-44142",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-44142"
    }
  ],
  "links": [],
  "reference": "CERTFR-2022-AVI-096",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2022-02-01T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    },
    {
      "description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
    },
    {
      "description": "D\u00e9ni de service"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Samba. Certaines\nd\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de\ncode arbitraire \u00e0 distance, un d\u00e9ni de service et une atteinte \u00e0\nl\u0027int\u00e9grit\u00e9 des donn\u00e9es.\n",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Samba",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Samba CVE-2021-44141 du 31 janvier 2022",
      "url": "https://www.samba.org/samba/security/CVE-2021-44141.html"
    },
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Samba CVE-2021-44142 du 31 janvier 2022",
      "url": "https://www.samba.org/samba/security/CVE-2021-44142.html"
    },
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Samba CVE-2022-0336 du 31 janvier 2022",
      "url": "https://www.samba.org/samba/security/CVE-2022-0336.html"
    }
  ]
}

CVE-2021-44142 (GCVE-0-2021-44142)

Vulnerability from cvelistv5 – Published: 2022-02-21 14:30 – Updated: 2025-04-23 19:02

Summary

The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.

Severity ?

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-125 - Out-of-bounds Read
CWE-787 - Out-of-bounds Write

Assigner

redhat

References

URL

Tags

	https://www.samba.org/samba/security/CVE-2021-441…
	https://www.zerodayinitiative.com/blog/2022/2/1/c…
	https://kb.cert.org/vuls/id/119678	third-party-advisory
	https://bugzilla.samba.org/show_bug.cgi?id=14914
	https://security.gentoo.org/glsa/202309-06	vendor-advisory

Impacted products

	Vendor	Product	Version
	Samba	Samba	Affected: unspecified , < 4.13.17 (custom) Affected: unspecified , < 4.14.12 (custom) Affected: unspecified , < 4.15.5 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:17:24.423Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://www.kb.cert.org/vuls/id/119678"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.samba.org/samba/security/CVE-2021-44142.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin"
          },
          {
            "tags": [
              "third-party-advisory",
              "x_transferred"
            ],
            "url": "https://kb.cert.org/vuls/id/119678"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.samba.org/show_bug.cgi?id=14914"
          },
          {
            "name": "GLSA-202309-06",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202309-06"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-44142",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T13:30:59.386639Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T19:02:19.767Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Samba",
          "vendor": "Samba",
          "versions": [
            {
              "lessThan": "4.13.17",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "4.14.12",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "4.15.5",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2022-01-31T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide \"...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver.\" Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125 Out-of-bounds Read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "CWE-787 Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-09-17T08:06:35.393Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://www.samba.org/samba/security/CVE-2021-44142.html"
        },
        {
          "url": "https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://kb.cert.org/vuls/id/119678"
        },
        {
          "url": "https://bugzilla.samba.org/show_bug.cgi?id=14914"
        },
        {
          "name": "GLSA-202309-06",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202309-06"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-44142",
    "datePublished": "2022-02-21T14:30:12.659Z",
    "dateReserved": "2021-11-22T00:00:00.000Z",
    "dateUpdated": "2025-04-23T19:02:19.767Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2021-44141 (GCVE-0-2021-44141)

Vulnerability from cvelistv5 – Published: 2022-02-21 00:00 – Updated: 2024-08-04 04:17

Summary

All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed.

Severity ?

No CVSS data available.

CWE

CWE-200

Assigner

redhat

References

URL

Tags

	https://www.samba.org/samba/security/CVE-2021-441…
	https://security.gentoo.org/glsa/202309-06	vendor-advisory

Impacted products

	Vendor	Product	Version
	n/a	Samba	Affected: All versions of Samba prior to 4.15.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T04:17:24.346Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.samba.org/samba/security/CVE-2021-44141.html"
          },
          {
            "name": "GLSA-202309-06",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202309-06"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Samba",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "All versions of Samba prior to 4.15.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-09-17T08:06:12.738945",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://www.samba.org/samba/security/CVE-2021-44141.html"
        },
        {
          "name": "GLSA-202309-06",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202309-06"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-44141",
    "datePublished": "2022-02-21T00:00:00",
    "dateReserved": "2021-11-22T00:00:00",
    "dateUpdated": "2024-08-04T04:17:24.346Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2022-0336 (GCVE-0-2022-0336)

Vulnerability from cvelistv5 – Published: 2022-08-29 00:00 – Updated: 2024-08-02 23:25

Summary

The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an account modification re-adds an SPN that was previously present on that account, such as one added when a computer is joined to a domain. An attacker who has the ability to write to an account can exploit this to perform a denial-of-service attack by adding an SPN that matches an existing service. Additionally, an attacker who can intercept traffic can impersonate existing services, resulting in a loss of confidentiality and integrity.

Severity ?

No CVSS data available.

CWE

CWE-276 - - Incorrect Default Permissions

Assigner

redhat

References

URL

Tags

	https://www.samba.org/samba/security/CVE-2022-0336.html
	https://bugzilla.samba.org/show_bug.cgi?id=14950
	https://github.com/samba-team/samba/commit/1a5dc8…
	https://github.com/samba-team/samba/commit/c58ede…
	https://bugzilla.redhat.com/show_bug.cgi?id=2046134
	https://access.redhat.com/security/cve/CVE-2022-0336
	https://security.gentoo.org/glsa/202309-06	vendor-advisory

Impacted products

	Vendor	Product	Version
	n/a	Samba	Affected: Affects Samba v4.0.0 and later, Fixed in samba v4.13.17, v4.14.12, v4.15.4.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:25:40.210Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.samba.org/samba/security/CVE-2022-0336.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.samba.org/show_bug.cgi?id=14950"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/samba-team/samba/commit/1a5dc817c0c9379bbaab14c676681b42b0039a3c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/samba-team/samba/commit/c58ede44f382bd0125f761f0479c8d48156be400"
          },
          {
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              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2046134"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2022-0336"
          },
          {
            "name": "GLSA-202309-06",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202309-06"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Samba",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Affects Samba v4.0.0 and later, Fixed in samba v4.13.17, v4.14.12, v4.15.4."
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an account modification re-adds an SPN that was previously present on that account, such as one added when a computer is joined to a domain. An attacker who has the ability to write to an account can exploit this to perform a denial-of-service attack by adding an SPN that matches an existing service. Additionally, an attacker who can intercept traffic can impersonate existing services, resulting in a loss of confidentiality and integrity."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-276",
              "description": "CWE-276 - Incorrect Default Permissions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-09-17T08:06:53.455235",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://www.samba.org/samba/security/CVE-2022-0336.html"
        },
        {
          "url": "https://bugzilla.samba.org/show_bug.cgi?id=14950"
        },
        {
          "url": "https://github.com/samba-team/samba/commit/1a5dc817c0c9379bbaab14c676681b42b0039a3c"
        },
        {
          "url": "https://github.com/samba-team/samba/commit/c58ede44f382bd0125f761f0479c8d48156be400"
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2046134"
        },
        {
          "url": "https://access.redhat.com/security/cve/CVE-2022-0336"
        },
        {
          "name": "GLSA-202309-06",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202309-06"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2022-0336",
    "datePublished": "2022-08-29T00:00:00",
    "dateReserved": "2022-01-21T00:00:00",
    "dateUpdated": "2024-08-02T23:25:40.210Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Tags

Taxonomy of the tags.

All sightings related to this event Export sightings related to this event

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CERTFR-2022-AVI-096

Solution

CVE-2021-44142 (GCVE-0-2021-44142)

CVE-2021-44141 (GCVE-0-2021-44141)

CVE-2022-0336 (GCVE-0-2022-0336)

Tags

Sightings

Nomenclature