CVE-2025-37730
May 06, 2025
Improper certificate validation in Logstash's TCP output could lead to a man-in-the-middle (MitM) attack in “client” mode, as hostname verification in TCP output was not being performed when the ssl_verification_mode => full was set.
Affected Packages
https://github.com/elastic/logstash.git (GITHUB):
Affected version(s) =v8.18.0 <v8.18.1Fix Suggestion:
Update to version v8.18.1https://github.com/elastic/logstash.git (GITHUB):
Affected version(s) >=v1.0.0 <v8.17.6Fix Suggestion:
Update to version v8.17.6https://github.com/elastic/logstash.git (GITHUB):
Affected version(s) =v9.0.0 <v9.0.1Fix Suggestion:
Update to version v9.0.1Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Certificate Validation
EPSS
Base Score:
0.03
