CVE-2023-7185 in Fakabao
Summary
by MITRE • 12/31/2023
A vulnerability was found in 7-card Fakabao up to 1.0_build20230805. It has been classified as critical. This affects an unknown part of the file shop/wxpay_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 associated identifier of this vulnerability is VDB-249387. 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-2023-7185 represents a critical sql injection flaw in the 7-card Fakabao application version 1.0_build20230805. This security weakness resides within the shop/wxpay_notify.php file, which processes payment notifications from WeChat Pay integration. The vulnerability specifically manifests when the out_trade_no parameter is manipulated, allowing attackers to inject malicious sql code directly into the application's database queries. The critical classification indicates the severity of potential impact, as sql injection vulnerabilities can enable complete database compromise and unauthorized data access. The fact that this exploit has been publicly disclosed and is potentially in use means that threat actors can immediately leverage this weakness without requiring advanced technical skills or special access. The vulnerability's exposure through the payment notification endpoint suggests that attackers could exploit this during legitimate transaction processing, making detection more challenging while potentially affecting real financial transactions.
The technical exploitation of this vulnerability follows standard sql injection patterns where the out_trade_no parameter serves as the attack vector. When the application fails to properly sanitize or escape user input from this parameter, malicious sql payloads can be executed within the database context. This flaw likely stems from inadequate input validation and improper parameter binding mechanisms within the php application code. The vulnerability demonstrates poor secure coding practices that align with CWE-89 sql injection weakness classification, where insufficient input sanitization allows attackers to manipulate database queries. The absence of proper prepared statements or parameterized queries in the wxpay_notify.php file creates an ideal environment for sql injection attacks to succeed. Attackers can potentially extract sensitive information including user credentials, payment details, and other database records through this vector.
The operational impact of CVE-2023-7185 extends beyond simple data theft, as sql injection attacks can enable complete system compromise through various attack paths defined in the mitre ATT&CK framework. An attacker could leverage this vulnerability to escalate privileges, modify database content, or even establish persistent backdoors within the application infrastructure. The payment processing nature of the affected endpoint means that successful exploitation could result in financial fraud, unauthorized transactions, and compromise of customer payment information. The vulnerability affects the core payment processing functionality, potentially disrupting legitimate business operations while simultaneously providing attackers with access to sensitive financial data. Organizations relying on this application face significant risk of data breaches, regulatory compliance violations, and potential legal consequences from unauthorized data access or financial loss.
Mitigation strategies for this vulnerability must prioritize immediate remediation through proper input validation and parameterized query implementation. The application should implement strict input sanitization for all parameters received through the wxpay_notify.php endpoint, particularly the out_trade_no field. Organizations should deploy web application firewalls to monitor and block suspicious sql injection patterns targeting this specific endpoint. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities throughout the application codebase. The lack of vendor response to earlier disclosure highlights the importance of proactive security measures rather than relying on vendor patching timelines. Implementing proper database access controls and monitoring mechanisms can help detect unauthorized sql query execution attempts. Additionally, organizations should consider implementing database activity monitoring solutions that can identify and alert on sql injection attempts, aligning with security best practices outlined in industry standards such as owasp top ten and nist cybersecurity framework.