CVE-2021-43359 : Exploit Details and Defense Strategies

Sunnet eHRD has a broken access control vulnerability that could lead to privilege escalation and remote code execution.

Understanding CVE-2021-43359

Sunnet eHRD software versions 8 and 9 are affected by a critical broken access control vulnerability that could allow an attacker to compromise the system.

What is CVE-2021-43359?

The vulnerability in Sunnet eHRD software enables a remote attacker to access the account management page as a general user, escalate privileges, execute arbitrary code, and potentially control the system or disrupt services.

The Impact of CVE-2021-43359

The impact is rated as HIGH with a CVSS base score of 8.8. It affects confidentiality, integrity, and availability of the system, posing a significant risk to the targeted organization.

Technical Details of CVE-2021-43359

Sunnet eHRD vulnerability details and mitigation steps.

Vulnerability Description

The vulnerability arises from broken access control, allowing unauthorized users to access sensitive functions and data within the eHRD system, leading to potential unauthorized access and privilege escalation.

Affected Systems and Versions

Affected software: Sunnet eHRD versions 8 and 9

Exploitation Mechanism

The vulnerability can be exploited remotely by an authenticated general user to access restricted areas, execute malicious commands, and potentially take control of the system.

Mitigation and Prevention

Steps to mitigate the CVE-2021-43359 vulnerability.

Immediate Steps to Take

Update Sunnet eHRD to version 10 to address the broken access control vulnerability.

Long-Term Security Practices

Implement least privilege access control to limit user permissions.
Regularly monitor and audit access logs for suspicious activities.

Patching and Updates

Stay vigilant for security advisories and apply patches promptly to prevent exploitation.