CVE-2019-20844

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

19/06/2020

Last modified:

19/06/2020

Description

An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. An attacker can spoof a direct-message channel by changing the type of a channel.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x

6.50

Severity 3.x

MEDIUM

Vector 2.0

AV:N/AC:M/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0

4.30

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:mattermost:mattermost_server::::::::		5.9.7 (excluding)
cpe:2.3:a:mattermost:mattermost_server::::::::	5.15.0 (including)	5.15.4 (excluding)
cpe:2.3:a:mattermost:mattermost_server::::::::	5.16.0 (including)	5.16.4 (excluding)
cpe:2.3:a:mattermost:mattermost_server::::::::	5.17.0 (including)	5.17.2 (excluding)
cpe:2.3:a:mattermost:mattermost_server:5.18.0:rc1::::::
cpe:2.3:a:mattermost:mattermost_server:5.18.0:rc2::::::
cpe:2.3:a:mattermost:mattermost_server:5.18.0:rc3::::::
cpe:2.3:a:mattermost:mattermost_server:5.18.0:rc4::::::

To consult the complete list of CPE names with products and versions, see this page

References to Advisories, Solutions, and Tools

https://mattermost.com/security-updates/