Overview
Vulnerabilities in the code running on cloud servers can be exploited by attackers. Insecure server-side code execution refers to vulnerabilities in the backend code running on cloud servers that can be exploited by attackers to execute arbitrary code or gain unauthorized access. These vulnerabilities may arise from insecure coding practices, such as improper input validation or failure to use secure coding frameworks. Attackers can exploit these flaws to manipulate server behavior, steal data, or inject malicious code into the mobile app’s backend systems.
Risk factors
Insecure server-side code execution can arise from:
- Failing to validate or sanitize input can lead to server-side code injection attacks, such as SQL injection or command injection.
- Using outdated server software or frameworks with known vulnerabilities can expose the application to code execution attacks.
- Lack of runtime protections on servers can leave them vulnerable to exploitation during code execution.
- Granting excessive permissions to server processes or services can increase the risk of code execution vulnerabilities.
- Third-party dependencies or plugins with unpatched vulnerabilities in server-side code.
Consequences
If an attacker successfully exploits insecure server-side code execution vulnerabilities, the following could happen:
- Code execution: Attackers can execute arbitrary code on the server, potentially taking control of the backend systems or the entire application.
- Data theft: Attackers can access sensitive data stored on the server, such as user information, API keys, or financial records.
- Malware injection: Attackers can inject malicious code into the server-side application, which may propagate to mobile apps or other connected services.
- Denial-of-service (DoS): Exploiting server-side code execution vulnerabilities can lead to DoS attacks, disrupting application availability.
Solutions and best practices
To mitigate the risks associated with insecure server-side code execution, organizations should implement the following security measures:
- Input validation and sanitization: Implement strict input validation and sanitization to prevent code injection attacks, ensuring that user input is not executed as code.
- Patch management: Regularly update server software and frameworks to address known vulnerabilities and prevent exploitation.
- Server-side protections: Use runtime protections, such as Web Application Firewalls (WAFs) and Runtime Application Self-Protection (RASP), to detect and block malicious code execution attempts.
- App shielding: Application shielding can be extended to backend services by adding runtime protection, encryption, and monitoring for unauthorized code execution.
- Code standards: Adopt secure coding standards (e.g., OWASP guidelines) to proactively prevent vulnerabilities during development.
Further reading