CVE-2019-10777 : Vulnerability Insights and Analysis
Learn about CVE-2019-10777, a command injection vulnerability in AWS Lambda versions prior to 1.0.5. Find out the impact, affected systems, exploitation method, and mitigation steps.
AWS Lambda Command Injection Vulnerability
Understanding CVE-2019-10777
What is CVE-2019-10777?
AWS Lambda versions prior to 1.0.5 are vulnerable to command injection due to unsanitized input in the "exec" function, allowing users to inject arbitrary commands.
The Impact of CVE-2019-10777
This vulnerability could be exploited by attackers to execute malicious commands within the AWS Lambda environment, potentially leading to unauthorized access or data breaches.
Technical Details of CVE-2019-10777
Vulnerability Description
The issue arises from the lack of input sanitization in the "config.FunctionName" parameter, enabling command injection through the "zipCmd" value.
Affected Systems and Versions
- Product: AWS Lambda
- Versions Affected: All versions prior to 1.0.5
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the input in the "config.FunctionName" parameter to execute unauthorized commands within the AWS Lambda environment.
Mitigation and Prevention
Immediate Steps to Take
- Update AWS Lambda to version 1.0.5 or later to mitigate the vulnerability.
- Implement input validation and sanitization to prevent command injection attacks.
Long-Term Security Practices
- Regularly monitor and audit AWS Lambda functions for any suspicious activities.
- Educate developers on secure coding practices to prevent similar vulnerabilities.
Patching and Updates
Apply security patches and updates provided by AWS to address known vulnerabilities in AWS Lambda.