Vulnerability · Published May 13, 2024 · Assigned by GitHub_M
CVE-2024-29895Cacti command injection in cmd_realtime.php
Critical 10.0
In plain English
A critical-severity command injection in cacti from Cacti. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 98.8% (higher than 99.9% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:24.04:LTS | cacti | no fix listed | UBUNTU-CVE-2024-29895 |
| Ubuntu:25.10 | cacti | no fix listed | UBUNTU-CVE-2024-29895 |
| Ubuntu:26.04:LTS | cacti | no fix listed | UBUNTU-CVE-2024-29895 |
| Ubuntu:26.10 | cacti | no fix listed | UBUNTU-CVE-2024-29895 |
Affected products (as reported)
Weakness: CWE-77 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
- https://github.com/Cacti/cacti/security/advisories/GHSA-cr28-x256-xf5m x_refsource_CONFIRM
- https://github.com/Cacti/cacti/commit/53e8014d1f082034e0646edc6286cde3800c683d x_refsource_MISC
- https://github.com/Cacti/cacti/commit/99633903cad0de5ace636249de16f77e57a3c8fc x_refsource_MISC
- https://github.com/Cacti/cacti/blob/501712998589763d411a68d35e3cda98fd9cfd18/cmd_realtime.php#L119 x_refsource_MISC