CVE-2023-7186 in Fakabao
Summary
by MITRE • 12/31/2023
A vulnerability was found in 7-card Fakabao up to 1.0_build20230805. It has been declared as critical. This vulnerability affects unknown code of the file member/notify.php. The manipulation of the argument out_trade_no leads to sql injection. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-249388. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 01/22/2024
The vulnerability identified as CVE-2023-7186 represents a critical sql injection flaw discovered in the 7-card Fakabao application version 1.0_build20230805. This security weakness resides within the member/notify.php file, which processes payment notifications and transaction confirmations. The vulnerability stems from inadequate input validation and sanitization of the out_trade_no parameter, which serves as a critical transaction identifier in payment processing workflows. The flaw allows attackers to manipulate this parameter and inject malicious sql commands that can be executed against the underlying database system.
The technical exploitation of this vulnerability follows standard sql injection attack patterns where the out_trade_no argument is crafted to bypass normal input validation mechanisms. When the application processes this parameter without proper sanitization, attackers can inject sql payloads that may result in unauthorized data access, data manipulation, or even complete database compromise. The vulnerability's classification as critical indicates that it can be exploited remotely without authentication and potentially leads to full system compromise. The fact that this exploit has been publicly disclosed and is actively being used increases the risk to affected systems, as threat actors can leverage this knowledge to target vulnerable installations.
The operational impact of CVE-2023-7186 extends beyond simple data theft to encompass complete system compromise and business disruption. Payment processing systems are particularly vulnerable since they handle sensitive financial information and transaction records. An attacker could potentially extract customer payment details, manipulate transaction records, or even escalate privileges within the application to gain administrative access. This vulnerability directly violates security principles outlined in CWE-89, which addresses sql injection flaws, and aligns with attack patterns documented in the ATT&CK framework under T1190 for exploit public-facing applications and T1071.004 for application layer protocol traffic. The lack of vendor response to early disclosure attempts compounds the risk, leaving organizations without official patches or mitigation guidance during an active exploit period.
Organizations utilizing the 7-card Fakabao application must implement immediate mitigations including input validation, parameterized queries, and web application firewall rules to block malicious sql injection attempts. The recommended approach involves sanitizing all user inputs, particularly transaction identifiers like out_trade_no, and implementing proper database access controls to limit the impact of any successful injection attempts. Additionally, organizations should conduct comprehensive security assessments of their payment processing infrastructure and monitor for suspicious activities that may indicate exploitation attempts. The vulnerability serves as a reminder of the importance of timely security patch management and the need for organizations to maintain robust security monitoring capabilities to detect and respond to active exploitation attempts.