SB2020072808 - Multiple vulnerabilities in LibreNMS

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Main Vulnerability Database SB2020072808

SB2020072808 - Multiple vulnerabilities in LibreNMS

Published: July 28, 2020

Security Bulletin ID SB2020072808
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) SQL injection (CVE-ID: CVE-2020-15873)

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green


The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data passed via the customoid.inc.php "device_id" POST parameter to ajax_form.php. A remote authenticated attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.


2) Improper access control (CVE-ID: CVE-2020-15877)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions for normal users because of "'guard' => 'admin'" instead of "'middleware' => ['can:admin']" in routes/web.php. A remote authenticated attacker can bypass implemented security restrictions and gain unauthorized access to the application.


Remediation

Install update from vendor's website.

References