Description
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.
Metrics
CVSS 3.0 9.8/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://packetstormsecurity.com/files/153188/LibreNMS-addhost-Command-Injection.html
- http://packetstormsecurity.com/files/153448/LibreNMS-1.46-addhost-Remote-Code-Execution.html
- https://drive.google.com/file/d/1LcGmOY8x-TG-wnNr-cM_f854kxk0etva/view?usp=sharingPermissions Required, Third Party Advisory
- https://gist.github.com/mhaskar/516df57aafd8c6e3a1d70765075d372dExploit, Third Party Advisory
- https://shells.systems/librenms-v1-46-remote-code-execution-cve-2018-20434/Exploit, Technical Description, Third Party Advisory
- http://packetstormsecurity.com/files/153188/LibreNMS-addhost-Command-Injection.html
- http://packetstormsecurity.com/files/153448/LibreNMS-1.46-addhost-Remote-Code-Execution.html
- https://drive.google.com/file/d/1LcGmOY8x-TG-wnNr-cM_f854kxk0etva/view?usp=sharingPermissions Required, Third Party Advisory
- https://gist.github.com/mhaskar/516df57aafd8c6e3a1d70765075d372dExploit, Third Party Advisory
- https://shells.systems/librenms-v1-46-remote-code-execution-cve-2018-20434/Exploit, Technical Description, Third Party Advisory
Timeline
- Published
- Apr 24, 2019
- Last modified
- Jun 17, 2026
- NVD status
- Modified