Vulnerability Monitor

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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.

Published

2020-06-19T19:15:10.310

Last Modified

2024-11-21T03:21:10.410

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.1 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-331
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application mattermost mattermost_server < 4.1.2 Yes
Application mattermost mattermost_server < 4.2.1 Yes
Application mattermost mattermost_server 4.3.0 Yes
Application mattermost mattermost_server 4.3.0 Yes
Application mattermost mattermost_server 4.3.0 Yes
Application mattermost mattermost_server 4.3.0 Yes
References