CVE-2018-21263
First published: Fri Jun 19 2020(Updated: )
An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. An attacker could authenticate to a different user's account via a crafted SAML response.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost | <4.5.2 | |
| Mattermost | >=4.6.0<4.6.2 | |
| Mattermost | =4.7.0-rc1 | |
| Mattermost | =4.7.0-rc2 | |
| Mattermost | =4.7.0-rc3 | |
| Mattermost | =4.7.0-rc4 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-21263?
CVE-2018-21263 has a medium severity rating due to the potential for unauthorized account access.
How do I fix CVE-2018-21263?
To fix CVE-2018-21263, upgrade Mattermost Server to version 4.7.0 or later.
Which versions of Mattermost Server are affected by CVE-2018-21263?
CVE-2018-21263 affects Mattermost Server versions prior to 4.7.0 and versions 4.6.2 and 4.5.2.
Can attackers exploit CVE-2018-21263 without user interaction?
Yes, attackers can exploit CVE-2018-21263 using a crafted SAML response, which requires no user interaction.
What type of attack does CVE-2018-21263 facilitate?
CVE-2018-21263 facilitates an authentication bypass attack, allowing an attacker to authenticate as another user.
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/author
- agent/last-modified-date
- agent/severity
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- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/mattermost
- canonical/mattermost
- version/mattermost/4.6.0
- version/mattermost/4.7.0-rc1
- version/mattermost/4.7.0-rc2
- version/mattermost/4.7.0-rc3
- version/mattermost/4.7.0-rc4