CVE-2025-34271 Details
Description
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.
A vulnerability exists in Nagios Log Server versions prior to 2024R2.0.2 within the cluster manager component. This issue involves the transmission of sensitive credentials from peer nodes over an unencrypted channel, despite SSL/TLS being enabled in the product configuration. Consequently, an attacker on the network path could intercept these credentials in transit. The captured credentials might allow authentication as a cluster node or service account, leading to unauthorized access, lateral movement, or system compromise.
Users are advised to upgrade to Nagios Log Server version 2024R2.0.3 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 31, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.nagios.com/changelog/#log-server | [email protected] | Release Notes |
| https://www.nagios.com/products/security/#log-server-2024R2 | [email protected] | Vendor Advisory |
| https://www.vulncheck.com/advisories/nagios-log-server-cluster-manager-credential-requests-sent-over-plaintext | [email protected] | Third Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-319 | Cleartext Transmission of Sensitive Information | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| nagios log server | < 2024 2024 r1 2024 r1.0.1 2024 r1.0.2 2024 r1.1 2024 r1.2 2024 r1.3 2024 r1.3.1 2024 r1.3.2 2024 r1.3.3 2024 r1.3.4 2024 r1.3.5 2024 r2 2024 r2.0.1 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Nov 6, 2025 | Initial Analysis | [email protected] |
| Oct 30, 2025 | New CVE Received | [email protected] |