CVE-2017-18883
Critical
Description
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2, when serving as an OAuth 2.0 Service Provider. There is low entropy for authorization data.
SeverityCritical
CVSS9.1
Exploit probability67. percentile1.1%
Product
Mattermost Server
PublishedJun 19, 2020
First seenJun 19, 2020
How to fix
Update
- mattermost mattermost_server4.1.2, 4.2.1 or later
- github.com/mattermost/mattermost-server4.1.2, 4.2.1, 4.3.0, 4.1.2+incompatible, 4.2.1+incompatible, 4.3.0+incompatible or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mattermost mattermost_server | v < 4.1.2, 4.2.0 ≤ v < 4.2.1, 4.3.0 | 4.1.2, 4.2.1 |
| github.com/mattermost/mattermost-serverGo | v < 4.1.2, 4.2.0-rc1 ≤ v < 4.2.1, 4.3.0-rc1 ≤ v < 4.3.0, v < 4.1.2+incompatible, 4.2.0-rc1+incompatible ≤ v < 4.2.1+incompatible, 4.3.0-rc1+incompatible ≤ v < 4.3.0+incompatible | 4.1.2, 4.2.1, 4.3.0, 4.1.2+incompatible, 4.2.1+incompatible, 4.3.0+incompatible |
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