CVE-2024-39777

Aug. 1, 2024, 4:45 p.m.

Tags

CWE-284
responsibledisclosure@mattermost.com
2024-08-01
CVE-2024-39777

CVSS Score

8.7 / 10

Product(s) Impacted

Mattermost

  • 9.9.x <= 9.9.0
  • 9.5.x <= 9.5.6
  • 9.7.x <= 9.7.5
  • 9.8.x <= 9.8.1

Description

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.

Weaknesses

CWE-284
Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CWE ID: 284

Date

Published: Aug. 1, 2024, 3:15 p.m.

Last Modified: Aug. 1, 2024, 4:45 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

responsibledisclosure@mattermost.com

CVSS Data

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

Base Score
8.7
Exploitability Score
2.3
Impact Score
5.8
Base Severity
HIGH
CVSS Vector String

The CVSS vector string provides an in-depth view of the vulnerability metrics.

View Vector String

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

References

https://mattermost.com/security-updates
responsibledisclosure@mattermost.com