GHSA-q5rg-wg7h-73m5
Dashboard / Vulnerabilities / GHSA-q5rg-wg7h-73m5
Summary: LibreNMS Information Disclosure
Details: An issue was discovered in LibreNMS through 1.47. The scripts that handle graphing options (`html/includes/graphs/common.inc.php` and `html/includes/graphs/graphs.inc.php`) do not sufficiently validate or encode several fields of user supplied input. Some parameters are filtered with `mysqli_real_escape_string`, which is only useful for preventing SQL injection attacks; other parameters are unfiltered. This allows an attacker to inject RRDtool syntax with newline characters via the `html/graph.php` script. RRDtool syntax is quite versatile and an attacker could leverage this to perform a number of attacks, including disclosing directory structure and filenames, file content, denial of service, or writing arbitrary files.
References: https://nvd.nist.gov/vuln/detail/CVE-2019-10665, https://github.com/librenms/librenms, https://www.darkmatter.ae/xen1thlabs/librenms-rrdtool-injection-vulnerability-xl-19-023
Affected packages
Package
Name: librenms/librenms
Purl: pkg:composer/librenms/librenms
Affected ranges
Type: ECOSYSTEM
Events:
