CVE-2021-37454 : Exploit Details and Defense Strategies
Learn about CVE-2021-37454, a Cross Site Scripting (XSS) vulnerability in NCH Axon PBX v2.22 and earlier versions, allowing malicious script execution. Find details on impact, affected systems, and mitigation steps.
A Cross Site Scripting (XSS) vulnerability has been identified in NCH Axon PBX v2.22 and earlier versions, specifically through the line name (stored). This vulnerability can potentially allow attackers to execute malicious scripts on the victim's browser.
Understanding CVE-2021-37454
This section provides insights into the nature and impact of the CVE-2021-37454 vulnerability.
What is CVE-2021-37454?
CVE-2021-37454 is a Cross Site Scripting (XSS) vulnerability present in NCH Axon PBX v2.22 and older versions. By exploiting this vulnerability, an attacker can inject and execute malicious scripts in the context of an unsuspecting user's session.
The Impact of CVE-2021-37454
The presence of this vulnerability can lead to unauthorized access, data theft, and potential compromise of sensitive information stored within the affected PBX systems.
Technical Details of CVE-2021-37454
In this section, we delve into the technical specifics of CVE-2021-37454.
Vulnerability Description
The XSS vulnerability in NCH Axon PBX v2.22 and earlier versions arises from inadequate input validation of the line name parameter, allowing malicious script injection.
Affected Systems and Versions
NCH Axon PBX versions 2.22 and prior are confirmed to be impacted by this security flaw.
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting crafted script code into the line name field, which gets stored and executed when the affected resource is accessed.
Mitigation and Prevention
This section outlines steps to mitigate and prevent exploitation of CVE-2021-37454.
Immediate Steps to Take
Users are advised to update NCH Axon PBX to the latest version available from the vendor and sanitize input fields to prevent script injection attacks.
Long-Term Security Practices
Implement strict input validation, conduct regular security assessments, and educate users on safe browsing practices to enhance overall system security.
Patching and Updates
Regularly check for security updates from NCH for Axon PBX and promptly apply patches to address known vulnerabilities.