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MattermostVULNRICHMENT:CVE-2024-24776

HistoryFeb 09, 2024 - 2:50 p.m.

CVE-2024-24776 Incorrect Authorization leads to Channel Member Count Leak

2024-02-0914:50:45

CWE-284

Mattermost

github.com

cve-2024-24776

mattermost

authorization

channel member count

leak

CVSS3

3.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.7

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

Mattermost fails to check the required permissions in the POST /api/v4/channels/stats/member_count API resulting in channel member counts being leaked to a user without permissions.

CNA Affected

[
  {
    "vendor": "Mattermost",
    "product": "Mattermost",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "8.1.7"
      },
      {
        "status": "unaffected",
        "version": "8.1.8"
      },
      {
        "status": "affected",
        "version": "9.4.0"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

References

mattermost.com/security-updates

CVSS3

3.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.7

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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