by Kastro
Paper/Archive/CVE-2025-34271

CVE-2025-34271

Nagios Log Server — Nagios Log Server < 2024R2.0.2 Cluster Manager Credential Requests Sent Over Plaintext

EPSS 0.7%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 54.6.546 × 2010.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Log Server< 2024R2.0.22024R2.0.2CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

patchnagios.com/products/security/#log-server-2024R2patchnagios.com/changelog/#log-serverwriteupvulncheck.com/advisories/nagios-log-server-cluster-manager-credential-requests-sent-over-plaintext