CVE-2021-42185 in wdja
Summary
by MITRE • 05/04/2022
wdja v2.1 is affected by a SQL injection vulnerability in the foreground search function.
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Analysis
by VulDB Data Team • 05/07/2022
The vulnerability identified as CVE-2021-42185 affects wdja version 2.1 and represents a critical SQL injection flaw within the foreground search functionality of the application. This type of vulnerability falls under the Common Weakness Enumeration category CWE-89 which specifically addresses SQL injection vulnerabilities where untrusted data is incorporated into SQL commands without proper sanitization or parameterization. The affected component operates as a front-end search interface that likely processes user input directly into database queries without adequate input validation or prepared statement usage.
The technical implementation of this vulnerability stems from improper handling of user-supplied input within the search function's query construction logic. When users enter search terms into the foreground interface, the application appears to concatenate these inputs directly into SQL query strings rather than utilizing parameterized queries or proper input sanitization techniques. This allows an attacker to inject malicious SQL code that can manipulate the database query execution flow, potentially enabling unauthorized data access, modification, or deletion operations.
The operational impact of this vulnerability extends beyond simple data theft as it provides attackers with significant database access capabilities. An attacker could leverage this vulnerability to extract sensitive information from the underlying database including user credentials, personal data, or business-critical information. The attack surface is particularly concerning as it affects the foreground search function which is likely frequently accessed by legitimate users, making the exploitation more隐蔽 and harder to detect. This vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol usage and T1566 for credential access through exploitation of vulnerable applications.
Mitigation strategies for CVE-2021-42185 should prioritize immediate implementation of parameterized queries or prepared statements throughout the application's database interaction code. Input validation and sanitization measures must be enforced at the application level to prevent malicious payloads from being processed. Additionally, the development team should implement proper error handling that does not expose database structure information to end users. Network-level protections such as web application firewalls can provide additional layers of defense, while regular security code reviews and penetration testing should be conducted to identify similar vulnerabilities in other application components. The vulnerability demonstrates the importance of following secure coding practices and adhering to database security best practices as outlined in industry standards including OWASP Top Ten and NIST cybersecurity frameworks.