Malicious remote can add users to arbitrary teams and channels
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 9.5.7, 9.7.6, 9.8.2, 9.9.1, 9.5.7+incompatible, and 3 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
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 properly validate that the channel that comes from the sync message is a shared channel, when shared channels are enabled, which allows a malicious remote to add users to arbitrary teams and channels
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Mattermost Mattermost
From 9.5.0 · through 9.5.6; From 9.7.0 · through 9.7.5; From 9.8.0 · through 9.8.1
- github.com/mattermost/mattermost/server/v8Go
From 9.5.0 · fixed in 9.5.7
- github.com/mattermost/mattermost/server/v8Go
From 9.7.0 · fixed in 9.7.6
- github.com/mattermost/mattermost/server/v8Go
From 9.8.0 · fixed in 9.8.2
- github.com/mattermost/mattermost/server/v8Go
From 9.9.0 · fixed in 9.9.1
- github.com/mattermost/mattermost-serverGo
From 9.5.0+incompatible · fixed in 9.5.7+incompatible; From 9.7.0+incompatible · fixed in 9.7.6+incompatible; From 9.8.0+incompatible · fixed in 9.8.2+incompatible; From 9.9.0+incompatible · fixed in 9.9.1+incompatible
- github.com/mattermost/mattermost-server/v5Go
All versions
- github.com/mattermost/mattermost-server/v6Go
All versions
- github.com/mattermost/mattermost/server/v8Go
All versions