PT-2020-14680 · Librenms · Librenms

Published 2020-07-21 · Updated 2021-09-08 · CVE-2020-15877

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions LibreNMS versions prior to 1.65.1

Description The issue is related to insufficient access control for normal users. This is due to the use of 'guard' => 'admin' instead of 'middleware' => ['can:admin'] in the routes/web.php file.

Recommendations For versions prior to 1.65.1, update to version 1.65.1 or later to resolve the issue. As a temporary workaround, consider modifying the routes/web.php file to use 'middleware' => ['can:admin'] instead of 'guard' => 'admin' to enforce proper access control.

Exploit

Fix

Exposure of Resource to Wrong Sphere

Weakness Enumeration

CWE-668

Related Identifiers

CVE-2020-15877

GHSA-3C33-3465-FHX2

Affected Products

Librenms

References · 9

• 🔥 https://shielder.it/blog · Exploit
• https://github.com/librenms/librenms/pull/11915 · Patch
• https://github.com/librenms/librenms/commit/e5bb6d80bc308fc56b9a01ffb76c34159995353c · Patch
• https://osv.dev/vulnerability/CVE-2020-15877 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-3c33-3465-fhx2 · Vendor Advisory
• https://community.librenms.org/c/announcements · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-15877 · Security Note
• https://github.com/librenms/librenms/compare/1.65...1.65.1 · Note
• https://github.com/librenms/librenms/releases/tag/1.65.1 · Note