CVE-2024-39777

2024-08-0115:15:12

CWE-284

Mattermost

web.nvd.nist.gov

mattermost vulnerability

shared channels

access exposure

remote attack

CVSS3

9.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

8.4

Confidence

High

EPSS

0.001

Percentile

20.1%

JSON

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to disallow unsolicited invites to expose access to local channels, when shared channels are enabled, which allows a malicious remote to send an invite with the ID of an existing local channel, and that local channel will then become shared without the consent of the local admin.

Affected configurations

Nvd

Node

mattermostmattermostRange9.5.0–9.5.7

mattermostmattermostRange9.7.0–9.7.6

mattermostmattermostRange9.8.0–9.8.2

mattermostmattermostMatch9.9.0

VendorProductVersionCPE
mattermostmattermost*cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*
mattermostmattermost9.9.0cpe:2.3:a:mattermost:mattermost:9.9.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
mattermost	mattermost	*	cpe:2.3:a:mattermost:mattermost::::::::
mattermost	mattermost	9.9.0	cpe:2.3:a:mattermost:mattermost:9.9.0:::::::*

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "status": "affected",
        "version": "9.9.0"
      },
      {
        "lessThanOrEqual": "9.5.6",
        "status": "affected",
        "version": "9.5.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.7.5",
        "status": "affected",
        "version": "9.7.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.8.1",
        "status": "affected",
        "version": "9.8.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "9.10.0"
      },
      {
        "status": "unaffected",
        "version": "9.9.1"
      },
      {
        "status": "unaffected",
        "version": "9.5.7"
      },
      {
        "status": "unaffected",
        "version": "9.7.6"
      },
      {
        "status": "unaffected",
        "version": "9.8.2"
      }
    ]
  }
]