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Veracode Vulnerability DatabaseVERACODE:47909

HistoryJul 04, 2024 - 9:50 a.m.

Improper Access Control

2024-07-0409:50:42

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

improper access control

vulnerability

createpost function

remoteid

attackers

broken functionality

user-defined post ids

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

LOW

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

AI Score

Confidence

High

JSON

github.com/mattermost/mattermost-server is vulnerable to Improper Access Control. The vulnerability is due to the createPost function not preventing users from specifying a RemoteId for their posts, allowing attackers to create posts with user-defined post IDs. Attackers can use this to cause broken functionality in channels or threads with user-defined posts.

References

github.com/mattermost/mattermost/commit/e0e161de077e5e1996a3059e6b7e249615d7442f

mattermost.com/security-updates

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

LOW

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

AI Score

Confidence

High

JSON

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