CVE-2024-29895

Summary

CVE-2024-29895 is a command injection vulnerability affecting the Cacti 1.3.x DEV branch. This issue allows unauthenticated users to execute arbitrary commands on the server due to a vulnerability in the `cmd_realtime.php` file. The vulnerability arises when the `register_argc_argv` option of PHP is enabled, which is the default setting in many environments. The `$poller_id` used in command execution is sourced from `$_SERVER['argv']`, which can be manipulated through URLs when this option is enabled. A patch for the vulnerability was introduced in commit 53e8014d1f082034e0646edc6286cde3800c683d, but it was later reverted in commit 99633903cad0de5ace636249de16f77e57a3c8fc.

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