SB2025050667 - MitM attack in Logstash
Published: May 6, 2025
Security Bulletin ID
SB2025050667
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper certificate validation (CVE-ID: CVE-2025-37730)
CWE-ID: CWE-295 - Improper Certificate Validation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to missing certificate validation in TCP output in the client mode when "ssl_verification_mode = full" is set. A remote attacker with ability to intercept traffic can perform MitM attack.
Remediation
Install update from vendor's website.