Cacti 1.3.x DEV cmd_realtime.php poller_id command injection

Summaryinfo

A vulnerability, which was classified as critical, was found in Cacti 1.3.x DEV. This affects an unknown function of the file cmd_realtime.php. Executing a manipulation of the argument poller_id can lead to command injection. This vulnerability is handled as CVE-2024-29895. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Cacti 1.3.x DEV. It has been declared as very critical. This vulnerability affects some unknown functionality of the file cmd_realtime.php. The manipulation of the argument poller_id with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Cacti provides an operational monitoring and fault management framework. A command injection vulnerability on the 1.3.x DEV branch allows any unauthenticated user to execute arbitrary command on the server when `register_argc_argv` option of PHP is `On`. In `cmd_realtime.php` line 119, the `$poller_id` used as part of the command execution is sourced from `$_SERVER['argv']`, which can be controlled by URL when `register_argc_argv` option of PHP is `On`. And this option is `On` by default in many environments such as the main PHP Docker image for PHP. Commit 53e8014d1f082034e0646edc6286cde3800c683d contains a patch for the issue, but this commit was reverted in commit 99633903cad0de5ace636249de16f77e57a3c8fc.

The advisory is available at github.com. This vulnerability was named CVE-2024-29895 since 03/21/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/13/2024). This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

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

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Log Management Software

Name

• Cacti

Version

• 1.3.x DEV

License

• open-source

Website

• Product: https://github.com/Cacti/cacti/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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