CVE-2017-18878
First published: Fri Jun 19 2020(Updated: )
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. Knowledge of a session ID allows revoking another user's session.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost | <4.1.2 | |
| Mattermost | >=4.2.0<4.2.1 | |
| Mattermost | =4.3.0-rc1 | |
| Mattermost | =4.3.0-rc2 | |
| Mattermost | =4.3.0-rc3 | |
| Mattermost | =4.3.0-rc4 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-18878?
CVE-2017-18878 has a medium severity rating as it allows unauthorized session revocation using knowledge of a session ID.
How do I fix CVE-2017-18878?
To fix CVE-2017-18878, upgrade Mattermost Server to version 4.3.0 or later.
What systems are affected by CVE-2017-18878?
CVE-2017-18878 affects Mattermost Server versions before 4.3.0, including all 4.1.x and 4.2.x releases.
What type of vulnerability is CVE-2017-18878?
CVE-2017-18878 is a session management vulnerability that allows users to revoke others' sessions.
Can I mitigate CVE-2017-18878 without updating?
There are no known effective mitigations for CVE-2017-18878 other than updating to a secure version.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/severity
- agent/author
- agent/references
- agent/weakness
- agent/description
- agent/softwarecombine
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/mattermost
- canonical/mattermost
- version/mattermost/4.2.0
- version/mattermost/4.3.0-rc1
- version/mattermost/4.3.0-rc2
- version/mattermost/4.3.0-rc3
- version/mattermost/4.3.0-rc4