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veracodeVeracode Vulnerability DatabaseVERACODE:42816
HistoryAug 16, 2023 - 11:21 a.m.

Missing Authorization

2023-08-1611:21:47
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
21
mattermost
authorization
vulnerability
oauth2
access token

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

0.001 Low

EPSS

Percentile

43.5%

The Mattermost is vulnerable to Missing Authorization. The vulnerability is due to not invalidating existing authorization codes when deauthorizing an OAuth2 app. This can result in attacker generating an access token by leveraging the existing authorization codes.

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

0.001 Low

EPSS

Percentile

43.5%

Related for VERACODE:42816