CVE-2023-38952 Scanner

ZKTeco's BioTime is a time attendance software widely used by organizations to monitor and manage employee time records. It allows for the storage and analysis of attendance data, helping companies to streamline their human resource operations. BioTime supports various attendance-related applications, providing both administrators and employees with an interface for managing work schedules and reports. The software is particularly beneficial for companies that require precise attendance tracking and time management functionalities. It integrates with biometric devices, enhancing the accuracy of timekeeping and attendance data. Organizations ranging from small enterprises to large institutions utilize ZKTeco BioTime for its comprehensive attendance management features.

The privilege escalation vulnerability in ZKTeco BioTime allows users with default employee credentials to gain unauthorized administrative access. This vulnerability arises from the lack of role validation in user sessions, making it possible for attackers to perform actions typically reserved for admin users. By exploiting this flaw, unauthorized users can access sensitive system parts, potentially compromising the security of the entire application and any associated data. The inherent risk lies in the software not restricting session roles, leading to inadequate access control measures. Such vulnerabilities can result in unauthorized data access and modifications, severely affecting system integrity.

The vulnerability in ZKTeco BioTime is technically rooted in its session management and authentication mechanisms. Attackers can utilize default credentials to log in as employees, as the system does not require session role validation to restrict administrative functions. Endpoints like '/login/' and '/base/dbbackuplog/table/' can be exploited, with credentials sent via POST requests, bypassing typical security controls. Vulnerable parameters include 'username' and 'password', which when combined with a clusterbomb attack pattern, further expose the system to unauthorized data exposure and potential misuse. This lack of robust authentication oversight leaves critical system elements open to exploitation.

Exploiting this vulnerability can lead to significant unauthorized administrative activity, data breaches, and system compromise. Malicious actors could manipulate or extract sensitive data, such as backup files, potentially leading to significant financial or reputational loss for the organization. Moreover, privileged access could allow attackers to alter system configurations or disrupt operations, affecting organizational productivity. The potential unauthorized disclosure of sensitive company data could also infringe on privacy regulations, resulting in legal implications. Overall, exploiting this privilege escalation can have severe implications for both system security and organizational compliance.

REFERENCES

• https://nvd.nist.gov/vuln/detail/CVE-2023-38951
• https://krashconsulting.com/fury-of-fingers-biotime-rce/
• https://github.com/omair2084/biotime-rce-8.5.5/blob/main/biotime_enum.py