PT-2021-11828 · Librenms · Librenms

Jellyfrog · Published 2021-02-08 · Updated 2021-05-06 · CVE-2020-35700

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 21.1.0

Description: A second-order SQL injection issue in the Top Devices dashboard widget of LibreNMS allows remote authenticated attackers to execute arbitrary SQL commands via the sort order parameter against the "/ajax/form/widget-settings" endpoint.

Recommendations: For versions prior to 21.1.0, update to version 21.1.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the "/ajax/form/widget-settings" endpoint or disabling the sort order parameter in the Top Devices dashboard widget until a patch is available.

Exploit

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2020-35700

GHSA-H59F-P56G-G75V

Affected Products

Librenms

References · 11

• 🔥 https://horizon3.ai/disclosures/librenms-second-order-sqli · Exploit
• https://github.com/librenms/librenms/pull/12422 · Patch
• https://osv.dev/vulnerability/GHSA-h59f-p56g-g75v · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-35700 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-35700 · Security Note
• https://github.com/librenms/librenms/releases/tag/21.1.0 · Note
• https://github.com/librenms/librenms/blob/master/app/Http/Controllers/Widgets/TopDevicesController.php · Note
• https://github.com/librenms/librenms/issues/12405 · Note
• https://t.me/cybersecuritytechnologies/2696 · Telegram Post
• https://t.me/cybersecuritytechnologies/2677 · Telegram Post
• https://t.me/cvenotify/9564 · Telegram Post