FKIE_CVE-2024-34029

Vulnerability from fkie_nvd - Published: 2024-05-26 14:15 - Updated: 2026-06-17 07:32
Severity
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
Mattermost versions 9.5.x <= 9.5.3, 9.7.x <= 9.7.1 and 8.1.x <= 8.1.12 fail to perform a proper authorization check in the /api/v4/groups/<group-id>/channels/<channel-id>/link endpoint which allows a user to learn the members of an AD/LDAP group that is linked to a team by adding the group to a channel, even if the user has no access to the team.
References
responsibledisclosure@mattermost.comhttps://mattermost.com/security-updatesVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://mattermost.com/security-updatesVendor Advisory
Impacted products
Vendor Product Version
mattermost mattermost_server *
mattermost mattermost_server *
mattermost mattermost_server *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Mattermost",
          "vendor": "Mattermost",
          "versions": [
            {
              "lessThanOrEqual": "9.5.3",
              "status": "affected",
              "version": "9.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "9.7.1",
              "status": "affected",
              "version": "9.7.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.12",
              "status": "affected",
              "version": "8.1.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "9.8.0"
            },
            {
              "status": "unaffected",
              "version": "9.5.4"
            },
            {
              "status": "unaffected",
              "version": "9.7.2"
            },
            {
              "status": "unaffected",
              "version": "8.1.13"
            }
          ]
        }
      ],
      "source": "responsibledisclosure@mattermost.com"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:mattermost:mattermost:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "mattermost",
          "vendor": "mattermost",
          "versions": [
            {
              "lessThanOrEqual": "9.5.3",
              "status": "affected",
              "version": "9.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "9.7.1",
              "status": "affected",
              "version": "9.7.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.12",
              "status": "affected",
              "version": "8.1.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "9.8.0"
            },
            {
              "status": "unaffected",
              "version": "9.5.4"
            },
            {
              "status": "unaffected",
              "version": "9.7.2"
            },
            {
              "status": "unaffected",
              "version": "8.1.13"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "47448305-8E05-4AEE-9E7B-D52AC86C7370",
              "versionEndExcluding": "8.1.13",
              "versionStartIncluding": "8.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "73F3450F-7A4F-450D-BC68-E726D347636F",
              "versionEndExcluding": "9.5.4",
              "versionStartIncluding": "9.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "44A14BC6-9CCB-4D0B-9C07-79767507C4D2",
              "versionEndExcluding": "9.7.2",
              "versionStartIncluding": "9.7.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost versions 9.5.x \u003c= 9.5.3, 9.7.x \u003c= 9.7.1 and 8.1.x \u003c= 8.1.12 fail to perform a proper authorization check in the /api/v4/groups/\u003cgroup-id\u003e/channels/\u003cchannel-id\u003e/link endpoint\u00a0which allows a user\u00a0to learn the members of\u00a0an AD/LDAP group that is linked to a team by adding the group to a channel, even if the user has no access to the team."
    },
    {
      "lang": "es",
      "value": "Las versiones 9.5.x \u0026lt;= 9.5.3, 9.7.x \u0026lt;= 9.7.1 y 8.1.x \u0026lt;= 8.1.12 de Mattermost no realizan una verificaci\u00f3n de autorizaci\u00f3n adecuada en /api/v4/groups// canales//link endpoint que permite a un usuario conocer los miembros de un grupo AD/LDAP que est\u00e1 vinculado a un equipo agregando el grupo a un canal, incluso si el usuario no tiene acceso al equipo."
    }
  ],
  "id": "CVE-2024-34029",
  "lastModified": "2026-06-17T07:32:46.773",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "responsibledisclosure@mattermost.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-34029",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-05-28T14:46:22.213261Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-05-26T14:15:09.367",
  "references": [
    {
      "source": "responsibledisclosure@mattermost.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://mattermost.com/security-updates"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://mattermost.com/security-updates"
    }
  ],
  "sourceIdentifier": "responsibledisclosure@mattermost.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "responsibledisclosure@mattermost.com",
      "type": "Secondary"
    }
  ]
}



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