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veracodeVeracode Vulnerability DatabaseVERACODE:44003
HistoryOct 26, 2023 - 7:25 a.m.

Denial Of Service Attack

2023-10-2607:25:30
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
1
mattermost
opengraph
vulnerability
denial of service
dos
server
api4
endpoint
cache filling
resource exhaustion

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7 High

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.0%

Mattermost is vulnerable to Denial of Service (DoS). The vulnerability was due to the OpenGraph functionality in the server/channels/api4/openGraph.go file of the Mattermost server.This allows an attacker to exploit this by sending numerous requests to the /api/v4/opengraph endpoint, causing excessive cache filling and resource exhaustion, leading to a Denial of Service.

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7 High

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.0%

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