CVE-2021-22825 : What You Need to Know

A CWE-200 vulnerability has been identified in Schneider Electric products, allowing an attacker to gain system access with elevated privileges by tricking a privileged account into clicking a malicious URL. The impacted products include AP7xxxx and AP8xxx with NMC2 (V6.9.6 or earlier), AP7xxx and AP8xxx with NMC3 (V1.1.0.3 or earlier), and APDU9xxx with NMC3 (V1.0.0.28 or earlier).

Understanding CVE-2021-22825

This section will delve into the details surrounding CVE-2021-22825.

What is CVE-2021-22825?

The vulnerability identified as CVE-2021-22825 is classified as CWE-200, which involves the exposure of sensitive information to an unauthorized actor. It enables attackers to compromise security tokens through malicious URLs, ultimately granting unauthorized system access.

The Impact of CVE-2021-22825

The exploitation of CVE-2021-22825 can result in unauthorized access to systems with elevated privileges. This security flaw poses a significant risk to the confidentiality and integrity of the affected systems and data.

Technical Details of CVE-2021-22825

In this section, we will explore the technical specifics of CVE-2021-22825.

Vulnerability Description

The vulnerability allows threat actors to elevate their system privileges by manipulating security tokens through malicious URLs, leading to unauthorized access to the affected products.

Affected Systems and Versions

Schneider Electric products impacted by CVE-2021-22825 include AP7xxxx and AP8xxx with NMC2 (V6.9.6 or earlier), AP7xxx and AP8xxx with NMC3 (V1.1.0.3 or earlier), and APDU9xxx with NMC3 (V1.0.0.28 or earlier).

Exploitation Mechanism

Attackers exploit this vulnerability by luring privileged accounts into clicking on malicious URLs, enabling them to compromise security tokens and gain unauthorized system access.

Mitigation and Prevention

This section will outline the necessary steps to mitigate and prevent the exploitation of CVE-2021-22825.

Immediate Steps to Take

Users and administrators should apply security patches provided by Schneider Electric promptly. Additionally, it is recommended to raise awareness among users regarding phishing attacks targeting privileged accounts.

Long-Term Security Practices

Implementing robust security measures, such as network segmentation, access control, and regular security training for employees, can help enhance the overall security posture and prevent similar vulnerabilities.

Patching and Updates

Regularly check for security advisories from Schneider Electric and apply patches and updates to ensure that systems are protected against known vulnerabilities.