Nagios XI up to 5.6.13 CCM command_test.php address os command injection

Summaryinfo

A vulnerability was found in Nagios XI up to 5.6.13. It has been classified as critical. This affects an unknown part of the file command_test.php of the component CCM. The manipulation of the argument address leads to os command injection. This vulnerability is traded as CVE-2020-36856. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Nagios XI up to 5.6.13 and classified as critical. This issue affects an unknown code block of the file command_test.php of the component CCM. The manipulation of the argument address with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Nagios XI versions prior to 5.6.14 contain an authenticated remote command execution vulnerability in the CCM command_test.php script. Insufficient validation of the `address` parameter allows an authenticated user with access to the Core Config Manager to inject shell metacharacters that are incorporated into backend command invocations. Successful exploitation enables arbitrary command execution with the privileges of the Nagios XI web application user and may be leveraged to execute commands on the underlying XI host, modify system configuration, or fully compromise the host.

The weakness was shared by Ibm X-force Exchange. The advisory is shared at nagios.com. The identification of this vulnerability is CVE-2020-36856 since 10/20/2025. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

By approaching the search of inurl:command_test.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.6.14 eliminates this vulnerability. The upgrade is hosted for download at nagios.com.

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Productinfo

Type

• Log Management Software

Vendor

• Nagios

Name

• XI

Version

• 5.6.0
• 5.6.1
• 5.6.2
• 5.6.3
• 5.6.4
• 5.6.5
• 5.6.6
• 5.6.7
• 5.6.8
• 5.6.9
• 5.6.10
• 5.6.11
• 5.6.12
• 5.6.13

License

• commercial

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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CVSSv3info

CVSSv2info

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Entryinfo

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