Vulnerability · Published Aug 1, 2024 · Assigned by Mattermost
CVE-2024-41926Malicious remote can claim that a user was synced from another remote
Low 2.7
In plain English
A low-severity improper access control in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)2.7Low
Exploit odds (30 days)0.2%top 93.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mattermost versions 9.9.x <= 9.9.0 and 9.5.x <= 9.5.6 fail to validate the source of sync messages and only allow the correct remote IDs, which allows a malicious remote to set arbitrary RemoteId values for synced users and therefore claim that a user was synced from another remote.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost | 5.3.2-0.20240604093018-5114c3b7cdb8 | GHSA-9fpw-c9x7-cv3j |
| Go | github.com/mattermost/mattermost-server | 9.5.7+incompatible, 9.9.1+incompatible | GO-2024-3022 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2024-3022 |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2024-3022 |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GO-2024-3022 |
| Go | github.com/mattermost/mattermost/server/v8 | 9.9.1 | GHSA-9fpw-c9x7-cv3j |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20240604093018-5114c3b7cdb8 | GHSA-9fpw-c9x7-cv3j |
| Go | github.com/mattermost/mattermost/server/v8 | 9.5.7 | GHSA-9fpw-c9x7-cv3j |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 9.9.09.5.0 – through 9.5.6 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N