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Veracode Vulnerability DatabaseVERACODE:48448

HistoryAug 12, 2024 - 10:12 a.m.

Improper Access Control

2024-08-1210:12:40

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

improper access control

mattermost-server

vulnerability

sync messages

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

6.8

Confidence

High

EPSS

Percentile

14.7%

JSON

github.com/mattermost/mattermost-server is vulnerable to Improper Access Control. The vulnerability is caused due to a failure to validate the source of sync messages and only allow the correct remote IDs. This allows a malicious remote user to set arbitrary RemoteId values for synced users and therefore claim that a user was synced from another remote.

References

github.com/advisories/GHSA-9fpw-c9x7-cv3j

mattermost.com/security-updates

mattermost.com/security-updates/

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

6.8

Confidence

High

EPSS

Percentile

14.7%

JSON

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