CVE-2024-49754: librenms XSS — Exploit & Fix

Description

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. A Stored Cross-Site Scripting (XSS) vulnerability in the API-Access page allows authenticated users to inject arbitrary JavaScript through the "token" parameter when creating a new API token. This vulnerability can result in the execution of malicious code in the context of other users' sessions, compromising their accounts and enabling unauthorized actions. This vulnerability is fixed in 24.10.0.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
librenms	librenms	< 24.10.0

References

Advisories & Patches

https://github.com/librenms/librenms/commit/25988a937cbaebd2ba4c0517510206c404dfb359 https://github.com/librenms/librenms/security/advisories/GHSA-gfwr-xqmj-j27v

Exploits

https://github.com/librenms/librenms/security/advisories/GHSA-gfwr-xqmj-j27v

Frequently Asked Questions

What is CVE-2024-49754? +

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. A Stored Cross-Site Scripting (XSS) vulnerability in the API-Access page allows authenticated users to inject arbitrary JavaScript through the "token" parameter when creating a new API token. This vulnerability can result in the execution of malicious code in the context of other users' sessions, compromising their accounts and enabling unauthorized actions. This vulnerability is fixed in 24.10.0. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-49754? +

CVE-2024-49754 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-49754? +

CVE-2024-49754 affects products from librenms, specifically: librenms. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-49754? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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