Vulnerability Monitor

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CVE-2025-34323

Nagios Log Server versions prior to 2026R1.0.1 are vulnerable to local privilege escalation due to a combination of sudo misconfiguration and group-writable application directories. The 'www-data' user is a member of the 'nagios' group, which has write access to '/usr/local/nagioslogserver/scripts', while several scripts in this directory are owned by root and may be executed via sudo without a password. A local attacker running as 'www-data' can move one of these root-owned scripts to a backup name and create a replacement script with attacker-controlled content at the original path, then invoke it with sudo. This allows arbitrary commands to be executed with root privileges, providing full compromise of the underlying operating system.

Published

2025-11-17T18:15:56.880

Last Modified

2025-11-26T15:15:52.143

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

Weaknesses

Type: Secondary
CWE-732

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nagios	log_server	< 2026	Yes
Application	nagios	log_server	2026	Yes

References

https://theyhack.me/Rooting-Nagios-Log-Server/ ([email protected])
https://www.nagios.com/changelog/nagios-log-server/nagios-log-server-2026r1-0-1/ Release Notes ([email protected])
https://www.nagios.com/products/security/#log-server Vendor Advisory ([email protected])
https://www.vulncheck.com/advisories/nagios-log-server-local-privilege-escalation-via-writable-scripts-and-sudo-rules Third Party Advisory ([email protected])