CWE-1094: Excessive Index Range Scan for a Data Resource
Learn about CWE-1094 (Excessive Index Range Scan for a Data Resource), its security impact, exploitation methods, and prevention guidelines.
What is Excessive Index Range Scan for a Data Resource?
• Overview: This vulnerability occurs when a software product performs an index range scan on a large data table, potentially covering a vast number of rows. This excessive scanning can degrade performance, leading to slow response times and making the application susceptible to further exploitation if the scan is reachable by an attacker.
• Exploitation Methods:
- Attackers can exploit this vulnerability by triggering operations that force the application to perform these inefficient scans, leading to system slowdowns or potential denial of service.
- Common attack patterns include sending requests that specifically target endpoints or functionalities known to perform these large scans, especially if they accept user-controlled inputs for filtering data.
• Security Impact:
- Direct consequences include significant performance degradation, leading to slow response times and potential timeouts.
- Potential cascading effects involve increased resource consumption, which can affect other services or components within the system.
- Business impact includes loss of user satisfaction, decreased productivity, and potential financial losses due to downtime or degraded performance.
• Prevention Guidelines:
- Specific code-level fixes include optimizing queries to limit the scope of index range scans, such as using more selective index columns or query restructuring.
- Security best practices involve regularly reviewing and testing database queries for efficiency and performance, especially those exposed to user inputs.
- Recommended tools and frameworks include database profiling and monitoring tools to identify and optimize inefficient queries, as well as using query optimization features provided by the database management system.
Technical Details
Likelihood of Exploit: Not specified
Affected Languages: Not specified
Affected Technologies: Not specified