CVE-2023-49239 in HarmonyOS
Summary
by MITRE • 12/06/2023
Unauthorized access vulnerability in the card management module. Successful exploitation of this vulnerability may affect service confidentiality.
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Analysis
by VulDB Data Team • 12/30/2023
The vulnerability identified as CVE-2023-49239 represents an unauthorized access flaw within a card management module that poses significant risks to service confidentiality. This type of vulnerability typically occurs when proper authentication and authorization controls are insufficiently implemented or bypassed, allowing malicious actors to gain access to sensitive card-related data without proper credentials. The card management module likely handles critical information such as cardholder details, transaction records, payment credentials, and other confidential data that requires strict access controls to maintain security posture.
From a technical perspective, this vulnerability falls under the category of insufficient authorization checks and weak access control mechanisms, which aligns with CWE-285 - "Improper Authorization" and CWE-305 - "Authentication Bypass Using Alternative Input". The flaw likely exists in how the system validates user credentials or determines whether an authenticated user has appropriate permissions to access specific card management functions. Attackers may exploit this vulnerability through various means including session manipulation, privilege escalation, or by directly accessing restricted endpoints without proper authentication. The exploitation process typically involves identifying unprotected API endpoints or functions within the card management module that should require elevated privileges but instead allow access based on insufficient validation.
The operational impact of CVE-2023-49239 extends beyond simple data exposure, potentially enabling comprehensive compromise of payment card systems and related services. When confidentiality is affected, attackers can access sensitive cardholder data including primary account numbers, card validation codes, expiration dates, and personal identifying information. This exposure creates substantial risk for organizations handling payment card data, as it may lead to fraudulent transactions, identity theft, and regulatory violations under standards such as pci dss. The vulnerability's impact is particularly severe in environments where card management systems interact with payment processing networks, as unauthorized access could enable attackers to manipulate card data, create fraudulent transactions, or extract valuable information for further exploitation.
Organizations should implement comprehensive mitigations including strengthening authentication mechanisms, implementing proper role-based access controls, and conducting regular security assessments of card management modules. The remediation approach should involve validating all access requests through robust authentication frameworks, implementing principle of least privilege, and ensuring proper session management. Additionally, organizations should consider implementing network segmentation to isolate card management systems, deploying intrusion detection systems to monitor for unauthorized access attempts, and establishing continuous monitoring for suspicious activities. These measures align with mitre att&ck techniques such as t1078 - "Valid Accounts" and t1566 - "Phishing" which represent common attack vectors that could exploit such authorization weaknesses. Regular security testing including penetration testing and vulnerability scanning should be conducted to identify similar weaknesses in other system components and ensure comprehensive protection of cardholder data environments.