CVE-2022-40833: CodeIgniter SQL Injection Vulnerability
Summary
CVE-2022-40833: B.C. Institute of Technology CodeIgniter. Affects codeigniter across 5 version ranges.
>= 3.0-rc.0, <= 3.0-rc.0
>= 3.0-rc2.0, <= 3.0-rc2.0
>= 3.0-rc3.0, <= 3.0-rc3.0
>= 3.0.0, < 3.1.13
>= 3.0.0, <= 3.0.0
Fixed in 3.1.13. How to fix ↓
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Background
CodeIgniter is an open-source PHP web application framework that provides a simple and elegant toolkit for building web applications. It is widely used for its lightweight and flexible nature, making it a popular choice among developers. However, CodeIgniter versions up to 3.1.13 are vulnerable to SQL Injection attacks via the system\database\DB_query_builder.php or_where_in() function.
Vulnerability Detail
The SQL Injection vulnerability in CodeIgniter allows an attacker to manipulate SQL queries by injecting malicious SQL code into user-supplied input. This can lead to unauthorized access, data leakage, data manipulation, and even remote code execution. The vulnerability arises due to improper input validation and sanitization in the affected function, which allows an attacker to bypass security measures and execute arbitrary SQL statements.
How To Fix
Minimum fixed version
3.1.13
This is the first release that contains the fix.
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Workaround
As a temporary workaround, developers can manually sanitize user input before using it in SQL queries. This can be achieved by using prepared statements or parameterized queries, which ensure that user-supplied data is treated as data and not executable code. Here is an example of using prepared statements in CodeIgniter:
$userId = $this->input->post('user_id');
$this->db->query('SELECT * FROM users WHERE id = ?', array($userId));
Conclusion
The CodeIgniter SQL Injection vulnerability (CVE-2022-40833) poses a significant risk to applications built on CodeIgniter versions up to 3.1.13. It is crucial for developers to upgrade to the latest version and implement proper input validation and sanitization techniques to prevent SQL Injection attacks. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
CodeIgniter is an open-source PHP web application framework that provides a simple and elegant toolkit for building web applications. It is known for its lightweight and flexible nature, making it a popular choice among developers.
SQL Injection is a web security vulnerability that allows an attacker to manipulate SQL queries by injecting malicious SQL code into user-supplied input. This can lead to unauthorized access, data leakage, data manipulation, and even remote code execution.
The SQL Injection vulnerability in CodeIgniter arises due to improper input validation and sanitization in the system\database\DB_query_builder.php or_where_in() function. This allows an attacker to bypass security measures and execute arbitrary SQL statements.
The CodeIgniter SQL Injection vulnerability can lead to unauthorized access to sensitive data, data manipulation, data leakage, and even remote code execution. It poses a significant risk to the confidentiality, integrity, and availability of the affected application.
Developers can mitigate the CodeIgniter SQL Injection vulnerability by upgrading to the latest version of CodeIgniter (3.1.14 or later) that includes a patch for the vulnerability. It is also crucial to implement proper input validation and sanitization techniques to prevent SQL Injection attacks.
References
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