CVE-2017-18883
CRITICALCVSS 9.1/10EPSS 1.13%
Last modified
CVE-2017-18883 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Mattermost | Mattermost Server | < 4.1.2 | — |
| Mattermost | Mattermost Server | >= 4.2.0, < 4.2.1 | — |
| Mattermost | Mattermost Server | 4.3.0 | Rc1 |
References
- https://mattermost.com/security-updates/Vendor Advisory
- https://mattermost.com/security-updates/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-18883?
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.
How severe is CVE-2017-18883?
CVE-2017-18883 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.
How do I fix CVE-2017-18883?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2017-18883?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST