Zkteco BioTime is a popular time and attendance management software used by many organizations. However, Zkteco BioTime version < 8.5.3 Build:20200816.447 has multiple vulnerabilities that can be exploited by an attacker to compromise the system’s security and gain unauthorized access to sensitive data.
The first vulnerability is a Local File Inclusion (LFI) vulnerability that occurs when an attacker can inject malicious input into the software’s input fields. The attacker can then use this vulnerability to read sensitive files on the system, including configuration files, source code, and other sensitive data
The second vulnerability is a Server-Side Request Forgery (SSRF) vulnerability that occurs when the software accepts user input to make HTTP requests. An attacker can exploit this vulnerability to make unauthorized requests to internal systems or external third-party systems, leading to data leakage or system compromise.
An attacker exploiting these vulnerabilities can gain access to sensitive data, compromise the system’s security, and perform malicious activities that can result in significant financial losses or legal consequences.
An attacker exploiting these vulnerabilities can gain full control over the Zkteco BioTime system, including sensitive employee data and attendance records. The attacker can modify attendance records, create false records, delete records, and perform other malicious activities that can result in significant financial losses or legal consequences. Additionally, the attacker can use the compromised system to launch further attacks against other systems and sensitive information.
Zkteco BioTime version < 8.5.3 Build:20200816.447
The vendor has released a patch to address these vulnerabilities. Users of affected versions of Zkteco BioTime are advised to update to version 8.5.3 Build:20200816.447 or later as soon as possible.
Additionally, users are advised to implement the following best practices to mitigate the risk of these vulnerabilities:
- Implement access control and permission management to limit access to sensitive data and functions
- Implement input validation and sanitization in all user input fields
- Implement output encoding for all user-generated content
- Implement session management best practices, such as session expiration and cookie security flags
- Implement HTTPS encryption to prevent eavesdropping and man-in-the-middle attacks
- Implement server-side request validation and filtering to prevent SSRF attacks
- Educate employees and system administrators on the risks of these vulnerabilities and how to identify and report suspicious activity
Local File Inclusion, and Server-Side Request Forgery vulnerabilities can have severe consequences for both users and organizations. The vulnerabilities in Zkteco BioTime version < 8.5.3 Build:20200816.447 are a prime example of the risks associated with improper access control and input validation. Users are advised to update their software and implement best practices to mitigate the risk of these vulnerabilities.