SB2020013113 - Multiple vulnerabilities in Kronos Web Time and Attendance (webTA)

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Stored cross-site scripting (CVE-ID: CVE-2020-8493)

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the "Login Message", "Banner Message", or "Password Instructions" field of the "/servlet/com.threeis.webta.H261configMenu" servlet. A remote administrator can permanently inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

This vulnerability affects the following versions of Kronos Web Time and Attendance:

• 3.8.x and later

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-8494)

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists within the "emp_id", "userid", "pw1", "pw2", "supervisor" and "timekeeper" parameters due to the "com.threeis.webta.H402editUser" servlet allows a remote attacker with Timekeeper, Master Timekeeper, or HR Admin privileges to gain unauthorized administrative privileges within the application.

This vulnerability affects the following versions of Kronos Web Time and Attendance:

• 3.8.x and later

3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-8495)

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists within the "delegate", "delegateRole" and "delegatorUserId" parameters due to the “com.threeis.webta.H491delegate” servlet allows a remote attacker with Timekeeper or Supervisor privileges to gain unauthorized administrative privileges within the application.

This vulnerability affects the following versions of Kronos Web Time and Attendance:

• 3.8.x and later

Remediation

Install update from vendor's website.

References

• http://www.nolanbkennedy.com/post/stored-xss-in-kronos-web-time-and-attendance-webta
• https://www.kronos.com/products/kronos-webta
• http://www.nolanbkennedy.com/post/privilege-escalation-2-in-kronos-web-time-and-attendance-webta
• http://www.nolanbkennedy.com/post/privilege-escalation-in-kronos-web-time-and-attendance-webta