GHSA-62q7-qj6g-gvr7

LibreNMS arbitrary OS commands execution

Source: GitHub Advisory Database (reviewed) Critical CVE-2018-20434

Packages

Ecosystem	Package	Affected	Fixed in
Packagist	librenms/librenms	1.46	no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

LibreNMS 1.46 allows remote attackers to execute arbitrary OS commands by using the `$_POST['community']` parameter to `html/pages/addhost.inc.php` during creation of a new device, and then making a `/ajax_output.php?id=capture&format=text&type=snmpwalk&hostname=localhost request that triggers html/includes/output/capture.inc.php` command mishandling.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2018-20434 advisory
https://drive.google.com/file/d/1LcGmOY8x-TG-wnNr-cM_f854kxk0etva/view?usp=sharing web
https://gist.github.com/mhaskar/516df57aafd8c6e3a1d70765075d372d web
https://github.com/librenms/librenms package
https://shells.systems/librenms-v1-46-remote-code-execution-cve-2018-20434 web