CWE-149: Improper Neutralization of Quoting Syntax
Learn about CWE-149 (Improper Neutralization of Quoting Syntax), its security impact, exploitation methods, and prevention guidelines.
What is Improper Neutralization of Quoting Syntax?
• Overview: This vulnerability arises when quoting syntax in software is not correctly neutralized. Attackers can inject or manipulate quote characters in data, causing the system to behave unexpectedly and potentially execute unwanted actions.
• Exploitation Methods:
- Attackers can insert, omit, or alter quote characters in input data to manipulate the application's logic or data parsing.
- Common attack patterns include SQL injection, command injection, and cross-site scripting (XSS), where improper quoting can lead to code execution or data leakage.
• Security Impact:
- Direct consequences include unauthorized access, data corruption, or execution of malicious code.
- Potential cascading effects may involve further system compromise, data breaches, and exploitation of interconnected systems.
- Business impact can include loss of customer trust, legal penalties, and financial loss due to compromised systems.
• Prevention Guidelines:
- Specific code-level fixes include proper escaping and sanitization of input data before processing.
- Security best practices involve using parameterized queries, avoiding direct interpretation of user inputs, and validating inputs rigorously.
- Recommended tools and frameworks include using libraries and APIs that handle quoting and escaping securely, and employing static analysis tools to detect vulnerabilities.
Technical Details
Likelihood of Exploit: Not specified
Affected Languages: Not specified
Affected Technologies: Not specified