CVE-2017-18878 : An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. Kno

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. Knowledge of a session ID allows revoking another user's session.

Published 2020-06-19 19:15:10

Updated 2020-06-30 19:56:09

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2017-18878

Mattermost » Mattermost Server
Versions before (<) 4.1.2
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Matching versions
Mattermost » Mattermost Server
Versions from including (>=) 4.2.0 and before (<) 4.2.1
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Matching versions
Mattermost » Mattermost Server » Version: 4.3.0 Update RC1
cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc1:*:*:*:*:*:*
Matching versions
Mattermost » Mattermost Server » Version: 4.3.0 Update RC2
cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc2:*:*:*:*:*:*
Matching versions
Mattermost » Mattermost Server » Version: 4.3.0 Update RC3
cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc3:*:*:*:*:*:*
Matching versions
Mattermost » Mattermost Server » Version: 4.3.0 Update RC4
cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc4:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 30 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:N/I:N/A:P	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
4.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	2.8	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low

CWE-732 Incorrect Permission Assignment for Critical Resource

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Assigned by: nvd@nist.gov (Primary)

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