CVE-2024-39839 - Default credentials

Routine

Remediate Within 6 Months

CVE Information|Basic Analysis|Framework Mapping|Web Framework Mapping|Compliance

CVE Information

Original CVE data

Published: August 1, 2024

Updated: September 4, 2024

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to disallow users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the local server as long as the user hadn't been synced before.

CWE:

CVSS v2-

CVSS v34.3

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

References

https://mattermost.com/security-updates

Affected Vendors

Mattermost - (1)

More vulnerabilities from Mattermost

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOⁿengine

Default credentials

CVSS Scores as calculated by PRIOⁿengine

CVSS v28.5

AV:N/AC:L/AU:N/C:N/I:P/A:C

CVSS v3-

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

MITRE CWE Top 25

Exploits

No exploit code is reported to exist.

Active Exploitation

Vulnerability is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

Compliance Impact

How the submited vulnerability affects compliance

Web Application Security Frameworks

Applicable if the issue likely affects a web application