CVE-2019-15949

HighActively exploited (CISA KEV)

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.

SeverityHigh
CVSS8.8
Exploit probability—
ProductNagios XI
PublishedSep 5, 2019
First seenSep 5, 2019
Added to KEVNov 3, 2021

How to fix

CISA required action

Apply updates per vendor instructions.

CISA due date: May 3, 2022
Update
  • nagios nagios_xi5.6.6 or later

Affected products

ProductAffected versionsFixed in
nagios nagios_xiv < 5.6.65.6.6

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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