CVE-2019-12476 Explained : Impact and Mitigation

Zoho ManageEngine ADSelfService Plus version 5.0.6 and earlier contain an authentication bypass vulnerability in the password reset feature, allowing an attacker to gain SYSTEM privileges.

Understanding CVE-2019-12476

This CVE involves an authentication bypass vulnerability in Zoho ManageEngine ADSelfService Plus.

What is CVE-2019-12476?

The vulnerability in Zoho ManageEngine ADSelfService Plus version 5.0.6 and earlier allows an attacker with physical access to achieve a shell with SYSTEM privileges by exploiting the password reset feature.

The Impact of CVE-2019-12476

Exploiting this vulnerability can lead to unauthorized access with elevated privileges, posing a significant security risk to affected systems.

Technical Details of CVE-2019-12476

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in Zoho ManageEngine ADSelfService Plus allows an attacker to bypass authentication and gain SYSTEM privileges through a carefully crafted keyboard input sequence.

Affected Systems and Versions

Product: Zoho ManageEngine ADSelfService Plus
Versions affected: 5.0.6 and earlier

Exploitation Mechanism

Attacker with physical access exploits the password reset feature
Utilizes a specific sequence of keyboard input via the restricted thick client browser

Mitigation and Prevention

Protecting systems from CVE-2019-12476 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Zoho ManageEngine ADSelfService Plus to version 5.0.7 or later
Implement strong physical security measures to prevent unauthorized access

Long-Term Security Practices

Regularly monitor and audit user access and activities
Conduct security training to raise awareness about social engineering attacks

Patching and Updates

Apply security patches promptly to address known vulnerabilities