Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS03Mm05LTdjOHgtcG1td84AA7PP

LibreNMS uses Improper Sanitization on Service template name leads to Stored XSS

Summary

There is improper sanitization on Service template name which is reflecting in delete button onclick event. This value can be modified and crafted as any other javascript code.

Vulnerable Code

https://github.com/librenms/librenms/blob/a61c11db7e8ef6a437ab55741658be2be7d14d34/app/Http/Controllers/ServiceTemplateController.php#L67C23-L67C23

Above is vulnerable code line which needs to be properly sanitized

PoC

1. Go to /services/templates
2. Enter name as testing', '14', 'http://172.105.62.194:8000/services/templates/14');alert(1);//
3. Submit it and try to delete it, you will see popup

If you inspect element on delete button, you will notice this:-

Impact

Cross site scripting can lead to cookie stealing or an attacker can execute any other feature using this feature.

Permalink: https://github.com/advisories/GHSA-72m9-7c8x-pmmw
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS03Mm05LTdjOHgtcG1td84AA7PP
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: 11 days ago
Updated: 10 days ago

CVSS Score: 7.1
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Identifiers: GHSA-72m9-7c8x-pmmw, CVE-2024-32479
References:

• https://github.com/librenms/librenms/security/advisories/GHSA-72m9-7c8x-pmmw
• https://github.com/librenms/librenms/commit/19344f0584d4d6d4526fdf331adc60530e3f685b
• https://github.com/librenms/librenms/blob/a61c11db7e8ef6a437ab55741658be2be7d14d34/app/Http/Controllers/ServiceTemplateController.php#L67C23-L67C23
• https://nvd.nist.gov/vuln/detail/CVE-2024-32479
• https://github.com/advisories/GHSA-72m9-7c8x-pmmw

Repository: https://github.com/librenms/librenms
Blast Radius: 2.1

Affected Packages