CVE Vulnerabilities

CVE-2025-34271

Cleartext Transmission of Sensitive Information

Published: Oct 30, 2025 | Modified: Nov 06, 2025
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

Nagios Log Server versions prior to 2024R2.0.2 contain a vulnerability in the cluster manager component when requesting sensitive credentials from peer nodes over an unencrypted channel even when SSL/TLS is enabled in the product configuration. As a result, an attacker positioned on the network path can intercept credentials in transit. Captured credentials could allow the attacker to authenticate as a cluster node or service account, enabling further unauthorized access, lateral movement, or system compromise.

Weakness

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

Affected Software

Name Vendor Start Version End Version
Log_server Nagios * 2024 (excluding)
Log_server Nagios 2024-r1 (including) 2024-r1 (including)
Log_server Nagios 2024-r1.0.1 (including) 2024-r1.0.1 (including)
Log_server Nagios 2024-r1.0.2 (including) 2024-r1.0.2 (including)
Log_server Nagios 2024-r1.1 (including) 2024-r1.1 (including)
Log_server Nagios 2024-r1.2 (including) 2024-r1.2 (including)
Log_server Nagios 2024-r1.3 (including) 2024-r1.3 (including)
Log_server Nagios 2024-r1.3.1 (including) 2024-r1.3.1 (including)
Log_server Nagios 2024-r1.3.2 (including) 2024-r1.3.2 (including)
Log_server Nagios 2024-r1.3.3 (including) 2024-r1.3.3 (including)
Log_server Nagios 2024-r1.3.4 (including) 2024-r1.3.4 (including)
Log_server Nagios 2024-r1.3.5 (including) 2024-r1.3.5 (including)
Log_server Nagios 2024-r2 (including) 2024-r2 (including)
Log_server Nagios 2024-r2.0.1 (including) 2024-r2.0.1 (including)

Potential Mitigations

References