Servers and applications
CVE-2019-15949
Nagios XI before 5.6.6 allows remote command execution as root. The exploit requires access to the server as the nagios user, or access as the admin user via the web interface. The getprofile.sh script, invoked by downloading a system profile (profile.php?cmd=download), is executed as root via a passwordless sudo entry; the script executes check_plugin, which is owned by the nagios user. A user…
Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021.
- Severity
- High 8.8
- Published
- 5 Sept 2019
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Fixed in
- 5.6.6
- Exploit chance
- 77% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 10 Nov 2026
- Weakness
- OS command injection (CWE-78)
- Attack
- Over the network · Needs a user account · No user action needed
- Attacker can
- Read data · Change data · Take it down
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Sources
- NVD
Description
Nagios XI before 5.6.6 allows remote command execution as root. The exploit requires access to the server as the nagios user, or access as the admin user via the web interface. The getprofile.sh script, invoked by downloading a system profile (profile.php?cmd=download), is executed as root via a passwordless sudo entry; the script executes check_plugin, which is owned by the nagios user. A user logged into Nagios XI with permissions to modify plugins, or the nagios user on the server, can modify the check_plugin executable and insert malicious commands to execute as root.
Affected software
| Software | Affected versions |
|---|---|
Nagios XIServers and applications · cpe:a:nagios:nagios_xi |
|
Known exploited
- CISA name
- Nagios XI Remote Code Execution Vulnerability
- Required action
- Apply updates per vendor instructions.
- Due for US agencies
- 3 May 2022
- Used in ransomware
- Not known