SQL Injection Vulnerability in silverstripe/restfulserver and silverstripe/registry
Summary
CVE-2019-12149: silverstripe restfulserver and registry modules SQL injection vulnerability. Affects silverstripe/restfulserver across 3 version ranges.
>= 1.0.0, < 1.0.9
>= 2.0.0, < 2.0.4
>= 2.1.0, < 2.1.2
Fixed in 1.0.9, 2.0.4 or 2.1.2, depending on the release line you run. How to fix ↓
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Background
silverstripe/restfulserver is a module that provides a RESTful API for SilverStripe CMS, allowing developers to create and manage RESTful endpoints. silverstripe/registry is a module that provides a registry pattern implementation for SilverStripe CMS, enabling the registration and retrieval of objects. Both modules are widely used in SilverStripe CMS projects.
Unfortunately, these modules are vulnerable to a SQL injection attack, which can allow attackers to execute arbitrary SQL commands. This vulnerability affects versions 1.0.x to 1.0.9, 2.0.x to 2.0.4, and 2.1.x to 2.1.2 of silverstripe/restfulserver, as well as versions 2.1.x to 2.1.1 and 2.2.x to 2.2.1 of silverstripe/registry.
Vulnerability Detail
The SQL injection vulnerability in silverstripe/restfulserver and silverstripe/registry allows attackers to inject malicious SQL commands into the application's database queries. By exploiting this vulnerability, an attacker can potentially bypass authentication, access unauthorized data, modify or delete data, or even execute arbitrary code on the server.
The vulnerability arises due to insufficient input validation and sanitization of user-supplied data before using it in database queries. This allows an attacker to craft malicious input that can manipulate the structure or behavior of the database queries, leading to SQL injection.
The impact of this vulnerability can be severe, as it can compromise the confidentiality, integrity, and availability of the affected application and its data.
How To Fix
Fixed versions by release line
The minimum fixed version depends on the release line you run.
-
>= 1.0.0, < 1.0.91.0.9composer require silverstripe/restfulserver:1.0.9 -
>= 2.0.0, < 2.0.42.0.4composer require silverstripe/restfulserver:2.0.4 -
>= 2.1.0, < 2.1.22.1.2composer require silverstripe/restfulserver:2.1.2
Tip — Not sure which release line you're on? Vulert can find the fix for the version you are using. Scan free →
Workaround
As a temporary workaround, developers can manually validate and sanitize user input before using it in database queries. This involves implementing proper input validation and sanitization techniques, such as parameterized queries or prepared statements, to prevent SQL injection attacks.
Here is an example of using parameterized queries in PHP:
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password');
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->bindParam(':username', $username);
$stmt->execute();
$result = $stmt->fetchAll();
By using parameterized queries, the user input is treated as data and not part of the SQL query structure, effectively mitigating the risk of SQL injection.
Conclusion
The SQL injection vulnerability in silverstripe/restfulserver and silverstripe/registry can have severe consequences, potentially compromising the security and integrity of the affected applications. It is crucial to upgrade to the latest patched versions of the modules and implement proper input validation and sanitization techniques to mitigate the risk of SQL injection.
For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
SQL injection is a web application vulnerability that allows an attacker to manipulate database queries by injecting malicious SQL code. This can lead to unauthorized access, data leakage, data modification, or even remote code execution.
SQL injection can be exploited by submitting specially crafted input, such as malicious SQL statements or payloads, through user input fields or parameters that are directly concatenated into database queries without proper validation or sanitization.
The potential consequences of SQL injection include unauthorized access to sensitive data, data manipulation or deletion, privilege escalation, remote code execution, and complete compromise of the affected application and its underlying infrastructure.
To protect your application from SQL injection, it is essential to implement proper input validation, sanitization, and parameterization techniques. This includes using parameterized queries or prepared statements, input validation routines, and least privilege principles.
Yes, there are various tools and frameworks available that can help detect and prevent SQL injection vulnerabilities. Some popular examples include static code analysis tools, web application firewalls (WAFs), and vulnerability scanners.
