CVE-2020-8495 : What You Need to Know

Kronos Web Time and Attendance (webTA) 3.8.x and later 3.x versions before 4.0 are vulnerable to privilege escalation, allowing attackers to gain unauthorized administrative privileges.

Understanding CVE-2020-8495

In this CVE, an attacker with Timekeeper or Supervisor privileges can exploit a servlet to elevate their access within the application.

What is CVE-2020-8495?

The com.threeis.webta.H491delegate servlet in Kronos Web Time and Attendance versions before 4.0 enables attackers to gain unauthorized administrative privileges through specific parameters.

The Impact of CVE-2020-8495

The vulnerability has a CVSS base score of 7.5 (High severity) with significant impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2020-8495

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw in Kronos Web Time and Attendance versions before 4.0 allows attackers with lower privileges to escalate their access to gain administrative rights.

Affected Systems and Versions

Affected versions: Kronos Web Time and Attendance 3.8.x and later 3.x versions before 4.0

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Exploitation Impact: High on confidentiality, integrity, and availability

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches promptly
Monitor and restrict access to the vulnerable servlet
Educate users on safe practices to prevent privilege escalation

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities
Implement the principle of least privilege to limit user access rights

Patching and Updates

Ensure all systems are updated with the latest patches from Kronos