PT-2021-14866 · Elastic+1 · Logstash+1

Published 2021-05-13 · Updated 2024-03-06 · CVE-2021-22138

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Logstash versions after 6.4.0 and before 6.8.15 Logstash versions prior to 7.12.0

Description 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.

Recommendations For Logstash versions after 6.4.0 and before 6.8.15, update to version 6.8.15 or later. For Logstash versions prior to 7.12.0, update to version 7.12.0 or later.

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

BIT-LOGSTASH-2021-22138

CVE-2021-22138

Affected Products

Logstash

Red Os

References · 6

• https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-logstash-2021-22138 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-22138 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-22138 · Security Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/uyazvimost-logstash-cve-2021-22138 · Note
• https://security.netapp.com/advisory/ntap-20210629-0001 · Note