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CVE

CVE-2017-18894

Mattermost Server has intermittent Authorization bypass for resource-owners
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CVE

CVE-2017-18894

Mattermost Server has intermittent Authorization bypass for resource-owners

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5, when used as an OAuth 2.0 service provider. Resource-owner authorization can be intermittently bypassed, allowing account takeover.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
C
H
U
8.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Related Resources

No items found.

References

https://nvd.nist.gov/vuln/detail/CVE-2017-18894, https://github.com/mattermost/mattermost, https://mattermost.com/security-updates

Severity

8.1

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
8.1
EPSS Probability
0.00209%
EPSS Percentile
0.42985%
Introduced Version
0,v4.2.0-rc1+incompatible,v4.1.0+incompatible,v3.9.0+incompatible,v0.0.0-20170420135502-be9624e2adce,v2.0.0+incompatible,v0.0.0-20150916194912-47e6a33a4505
Fix Available
4.0.5,v4.2.0-rc2+incompatible,v4.1.1-rc1+incompatible,v4.0.5-rc1+incompatible,v0.0.0-20170906202434-d38328976e2c

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