CVE-2021-22138

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 13-05-2021 08:15

Last modified: - 04-06-2022 04:56

Total changes: - 4

Description

In Logstash versions after 6.4.0 and before 6.8.15 and 7.12.0 a TLS certificate validation flaw was found in the monitoring feature. When specifying a trusted server CA certificate Logstash would not properly verify the certificate returned by the monitoring server. This could result in a man in the middle style attack against the Logstash monitoring data.

Common Vulnerability Scoring System (CVSS)

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

High

Attack complexity

Network

Attack vector

None

Availability

Low

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

3.7

Base score

2.2

1.4

Exploitability score

Impact score

Verification logic

vendor=elastic AND product=logstash AND versionStartIncluding=7.0.0 AND versionEndExcluding=7.12.0

vendor=elastic AND product=logstash AND versionStartIncluding=6.4.0 AND versionEndExcluding=6.8.15

Reference

Keywords

CVE-2021-22138

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-22138

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures