CVE-2024-24402
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn issue in Nagios XI 2024R1.01 allows a remote attacker to escalate privileges via a crafted script to the /usr/local/nagios/bin/npcd component.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceNagios XI 2024R1.01 contains a privilege escalation vulnerability in the npcd binary (/usr/local/nagios/bin/npcd) that allows a remote attacker to execute a crafted script and gain elevated privileges. The npcd component is part of the Nagios Process Performance Daemon, likely vulnerable to script injection or improper path validation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 2024CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Nagios XI versionRun command: cat /usr/local/nagiosxi/etc/xi-sys.cfg or check the Nagios XI web interface under 'Admin' > 'System Info'. Alternatively, check the RPM/deb package version if installed via package manager.Affected if The installed version is Nagios XI 2024 (specifically 2024R1.01 or any 2024 release)
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Verify npcd binary presenceCheck if the file /usr/local/nagios/bin/npcd exists: ls -la /usr/local/nagios/bin/npcdAffected if The npcd binary exists at the expected path /usr/local/nagios/bin/npcd
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Confirm npcd service is activeCheck if the npcd service is running: systemctl status npcd or ps aux | grep npcdAffected if The npcd daemon process is currently running or enabled on the system
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Inspect npcd configuration for script execution settingsExamine the npcd configuration file typically located at /usr/local/nagios/etc/npcd.cfg or /etc/nagios/npcd.cfg. Look for directives that specify script paths or external command execution.Affected if The npcd configuration contains paths to user-writable script directories or allows execution of scripts from writable locations
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Check file permissions on npcd and associated scriptsRun: ls -la /usr/local/nagios/bin/npcd and examine permissions. Also check directories where npcd may execute scripts from (e.g., /usr/local/nagios/libexec/).Affected if The npcd binary or its associated script directories have overly permissive permissions (e.g., world-writable or owned by an unprivileged user)
A system is affected if it runs Nagios XI 2024 with the npcd component enabled, where the npcd binary exists and is operational, especially if configuration or permissions allow script injection.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade Nagios XI to the patched version as released by the vendor. If immediate patching is not possible, restrict network access to the npcd component and monitor for unauthorized script execution attempts.
- Consultation2.0 h
- Implementation3.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-24402 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-24402 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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