CVE-2019-6491 in Gestao de Horarios
Summary
by MITRE
RISI Gestao de Horarios v3201.09.08 rev.23 allows SQL Injection.
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Analysis
by VulDB Data Team • 08/04/2023
The vulnerability identified as CVE-2019-6491 affects RISI Gestao de Horarios version 3201.09.08 revision 23, representing a critical SQL injection flaw that exposes the system to unauthorized data access and manipulation. This issue stems from insufficient input validation within the application's database interaction mechanisms, allowing malicious actors to inject arbitrary SQL commands through improperly sanitized user inputs. The vulnerability manifests when the application fails to properly escape or parameterize database queries, creating an avenue for attackers to bypass authentication measures and directly access backend database structures.
The technical exploitation of this vulnerability follows standard SQL injection attack patterns where attacker-controlled input is concatenated into SQL query strings without proper sanitization. This flaw resides in the application's handling of user-supplied parameters that are subsequently used in database operations, making it susceptible to both union-based and boolean-based injection techniques. The vulnerability aligns with CWE-89 which categorizes improper neutralization of special elements used in SQL commands as a fundamental weakness in application security. Attackers can leverage this vulnerability to extract sensitive information including user credentials, personal data, and system configurations from the underlying database.
Operationally, this vulnerability presents significant risk to organizations using the RISI Gestao de Horarios system, particularly those managing employee scheduling and time tracking data. Successful exploitation could enable attackers to gain unauthorized access to employee records, payroll information, and other confidential data stored within the application's database. The impact extends beyond simple data theft as attackers might also modify or delete critical scheduling information, potentially disrupting business operations and compromising workforce management processes. This vulnerability falls under the ATT&CK technique T1071.004 for application layer protocol manipulation and T1213.002 for data from information repositories, demonstrating how SQL injection can serve as a gateway for broader compromise.
Mitigation strategies for this vulnerability require immediate implementation of proper input validation and parameterized queries throughout the application codebase. Organizations should implement web application firewalls to detect and block suspicious SQL injection patterns while ensuring all database interactions utilize prepared statements or parameterized queries. Regular security assessments and code reviews should focus on identifying similar input handling issues across the entire application stack. The fix involves modifying the application's database interaction code to properly sanitize all user inputs before incorporation into SQL commands, following established security best practices. Additionally, implementing database access controls and monitoring mechanisms can help detect unauthorized database access attempts, providing defense in depth against potential exploitation of this vulnerability.