CVE-2024-35548 in Mybatis Plus
Summary
by MITRE • 05/29/2024
A SQL injection vulnerability in Mybatis plus versions below 3.5.6 allows remote attackers to obtain database information via a Boolean blind injection
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Analysis
by VulDB Data Team • 11/07/2024
This vulnerability represents a critical security flaw in the Mybatis plus framework affecting versions prior to 3.5.6, where attackers can exploit a Boolean blind SQL injection technique to extract sensitive database information remotely. The vulnerability stems from inadequate input validation and sanitization within the framework's query execution mechanisms, specifically in how boolean expressions are handled during database interactions. Attackers can manipulate application parameters to craft malicious SQL payloads that, when processed by the vulnerable framework, trigger boolean-based responses from the database server. This allows adversaries to infer information about the database structure, content, and configuration through carefully constructed queries that produce different response behaviors based on true or false conditions.
The technical implementation of this vulnerability aligns with common CWE categories including CWE-89 SQL Injection and CWE-400 Uncontrolled Resource Consumption, where the framework fails to properly escape or parameterize user inputs before incorporating them into SQL statements. The Boolean blind injection technique leverages the database's response timing or logical outcomes to extract data without direct data retrieval mechanisms, making detection more challenging for traditional security controls. This approach typically involves sending multiple queries with different boolean conditions and observing the application's response patterns to deduce database contents. The vulnerability impacts the integrity and confidentiality of database operations, potentially allowing attackers to access sensitive information such as user credentials, personal data, financial records, or system configurations that are stored within the affected database.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with a foundation for further exploitation within the target environment. Successful exploitation can lead to complete database compromise, allowing attackers to modify or delete critical information, escalate privileges, or establish persistent access through database user accounts. The remote nature of this attack means that threat actors can exploit the vulnerability from outside the network perimeter without requiring local system access or credentials. This creates significant risk for organizations relying on Mybatis plus for database operations, particularly those handling sensitive data or operating in regulated environments where data protection compliance is mandatory. The vulnerability affects applications that use dynamic query building or parameterized statements without proper input validation, making it prevalent across numerous web applications and services.
Organizations should immediately upgrade to Mybatis plus version 3.5.6 or later to remediate this vulnerability, as this release includes proper input validation and parameterization mechanisms that prevent the injection of malicious SQL content. Additional mitigations include implementing web application firewalls that can detect and block SQL injection patterns, establishing comprehensive input validation at multiple layers of the application architecture, and conducting regular security assessments of database interactions. Security teams should also implement database activity monitoring to detect unusual query patterns that may indicate exploitation attempts. The vulnerability demonstrates the importance of keeping third-party libraries updated and following secure coding practices, particularly around database query construction and input handling. Organizations should also consider implementing principle of least privilege for database accounts, ensuring that application users have only the necessary permissions to perform their functions, thereby limiting the potential damage from successful exploitation attempts.