CVE-2019-15949
Nagios XI Remote Code Execution Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 77.04% probability · 100th percentile
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-78
- Affected
- nagios/nagios xi
- Source
- cve@mitre.org
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-15949
References
- http://packetstormsecurity.com/files/156676/Nagios-XI-Authenticated-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/162158/Nagios-XI-getprofile.sh-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/jakgibb/nagiosxi-root-rce-exploitExploit, Third Party Advisory
- http://packetstormsecurity.com/files/156676/Nagios-XI-Authenticated-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/162158/Nagios-XI-getprofile.sh-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/jakgibb/nagiosxi-root-rce-exploitExploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-15949US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.