Vulnerability identifier: #VU51610
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-362
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Mattermost Server
Client/Desktop applications /
Messaging software
Vendor: Mattermost, Inc.
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of WebSockets closing. A remote attacker can exploit the race and cause a denial of service condition on the system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mattermost Server: 5.0.0 - 5.33.0
External links
http://docs.mattermost.com/administration/changelog.html#release-v5-33-feature-release
http://mattermost.atlassian.net/browse/MM-33233
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.