CVE-2023-4103 in QSige
Summary
by MITRE • 10/25/2023
QSige statistics are affected by a remote SQLi vulnerability. It has been identified that the web application does not correctly filter input parameters, allowing SQL injections, DoS or information disclosure. As a prerequisite, it is necessary to log into the application.
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Analysis
by VulDB Data Team • 10/25/2023
The vulnerability identified as CVE-2023-4103 affects QSige statistics, a web application that suffers from a remote SQL injection flaw. This security weakness stems from inadequate input parameter filtering within the application's codebase, creating a pathway for malicious actors to execute unauthorized database operations. The vulnerability requires prior authentication to exploit, meaning that an attacker must first establish a valid session within the application before attempting the SQL injection attack. This prerequisite authentication requirement does not mitigate the severity of the vulnerability, as it still represents a critical weakness in the application's security architecture that could be exploited by authenticated users or through credential compromise.
The technical flaw manifests when the application processes user-supplied input parameters without proper sanitization or validation before incorporating them into SQL queries. This allows attackers to manipulate database queries through crafted input, potentially enabling them to extract sensitive information from the underlying database, modify or delete data, or even execute arbitrary commands on the database server. The vulnerability's classification aligns with CWE-89 which specifically addresses SQL injection flaws, where improper handling of user input leads to unauthorized database access. The application's failure to implement proper parameterized queries or input validation mechanisms creates an environment where malicious SQL code can be executed within the database context.
The operational impact of this vulnerability extends beyond simple data theft, as it can enable denial of service conditions through database resource exhaustion or manipulation, and potentially allow for information disclosure that could expose sensitive organizational data. The fact that authentication is required to exploit this vulnerability does not eliminate the risk, as it still represents a privilege escalation opportunity for malicious users who have already gained access to legitimate credentials. This weakness could be particularly damaging in environments where the application handles sensitive business data, user information, or operational statistics that could be leveraged for further attacks against the organization's infrastructure.
Organizations should implement immediate mitigations including the deployment of web application firewalls to detect and block suspicious SQL injection patterns, implementation of proper input validation and parameterized queries throughout the application codebase, and comprehensive authentication controls including multi-factor authentication to reduce the risk of credential compromise. The vulnerability also highlights the importance of regular security assessments and penetration testing to identify similar weaknesses in application code. According to ATT&CK framework, this vulnerability maps to techniques involving SQL injection and privilege escalation, with potential lateral movement opportunities if the database credentials are sufficiently privileged. Organizations should also consider implementing database activity monitoring to detect anomalous query patterns that could indicate exploitation attempts. The remediation process should include thorough code reviews to ensure all input handling follows secure coding practices and that proper error handling prevents information leakage that could aid attackers in crafting successful exploits.