CVE-2021-40517 : Vulnerability Insights and Analysis

Airangel HSMX Gateway devices through 5.2.04 are vulnerable to stored Cross Site Scripting, allowing an attacker to insert XSS payloads into the name column of the updates table through database access.

Understanding CVE-2021-40517

This CVE describes a stored Cross Site Scripting vulnerability impacting Airangel HSMX Gateway devices.

What is CVE-2021-40517?

Stored Cross Site Scripting vulnerability in Airangel HSMX Gateway devices allows attackers to insert malicious scripts into the updates table via the name column.

The Impact of CVE-2021-40517

The vulnerability can be exploited to execute arbitrary scripts in the context of a user's browser, leading to potential data theft, session hijacking, and other malicious activities.

Technical Details of CVE-2021-40517

Airangel HSMX Gateway devices are susceptible to stored XSS attacks, as outlined below.

Vulnerability Description

Vulnerability Type: Stored Cross Site Scripting (XSS)
Attack Vector: Inserting XSS payloads into the name column of the updates table

Affected Systems and Versions

Affected Systems: Airangel HSMX Gateway devices
Affected Versions: Up to version 5.2.04

Exploitation Mechanism

The attacker gains access to the database and manipulates the updates table's name column to inject malicious XSS payloads.

Mitigation and Prevention

To address CVE-2021-40517, take the following immediate and long-term security measures.

Immediate Steps to Take

Disable access to the updates table for untrusted users
Implement input validation to sanitize user inputs
Monitor and filter user-generated content for malicious scripts

Long-Term Security Practices

Conduct regular security audits and penetration testing
Educate developers on secure coding practices
Keep systems and software up to date with the latest patches

Patching and Updates

Apply patches or updates provided by Airangel to fix the vulnerability and enhance the security of HSMX Gateway devices.