CVE-2020-21176: SQL Injection in thinkjs
Summary
CVE-2020-21176: SQL Injection in thinkjs. Affects thinkjs versions < 3.2.14. No fix is published. How to fix ↓
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Background
ThinkJS is an open-source Node.js framework designed for building scalable and maintainable web applications. It provides a comprehensive set of features, including routing, middleware support, and database integration. However, ThinkJS versions 0 to 3.2.14 are vulnerable to a SQL injection attack in the model.increment and model.decrement functions. This vulnerability allows remote attackers to execute arbitrary SQL commands by manipulating the 'step' parameter. The impact of this vulnerability can be severe, as it enables unauthorized access to the database and potential data leakage or modification.
Vulnerability Detail
The SQL injection vulnerability in ThinkJS arises due to insufficient input validation and sanitization in the model.increment and model.decrement functions. By crafting a malicious 'step' parameter, an attacker can inject arbitrary SQL commands into the underlying database query. This can lead to various security issues, including unauthorized data access, data manipulation, and potentially remote code execution. The vulnerability has a CVSS score of 9.8, indicating its high severity.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If upgrading to the latest version is not immediately feasible, users can implement a workaround by manually validating and sanitizing the 'step' parameter before passing it to the model.increment and model.decrement functions. This can be achieved by using parameterized queries or prepared statements to prevent the injection of malicious SQL commands. Here is an example of how to implement parameterized queries in ThinkJS:
const step = think.validate('step', 'number');
const sql = `UPDATE table SET column = column + ? WHERE condition = ?`;
await think.model('model').query(sql, [step, condition]);
Conclusion
In conclusion, the SQL injection vulnerability in ThinkJS versions 0 to 3.2.14 poses a significant risk to the security of web applications built with this framework. It is crucial to promptly upgrade to ThinkJS version 3.2.15 or later to mitigate this vulnerability. Alternatively, implementing manual input validation and sanitization can provide temporary protection. For further assistance and support in addressing this vulnerability, please contact DevNack.com.
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FAQ
ThinkJS is an open-source Node.js framework for building web applications. It provides a range of features and tools to simplify the development process.
ThinkJS versions 0 to 3.2.14 are affected by this SQL injection vulnerability.
This vulnerability allows remote attackers to execute arbitrary SQL commands, potentially leading to unauthorized data access, data manipulation, and remote code execution.
To fix this vulnerability, it is recommended to upgrade ThinkJS to version 3.2.15 or later. Alternatively, you can implement manual input validation and sanitization for the 'step' parameter.
Yes, if upgrading to the latest version is not immediately feasible, you can manually validate and sanitize the 'step' parameter before using it in the vulnerable functions. Implementing parameterized queries or prepared statements can help prevent SQL injection.
