CVE-2020-24671 in CRESTBridge
Summary
by MITRE • 06/10/2021
Trace Financial CRESTBridge
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Analysis
by VulDB Data Team • 06/13/2021
CVE-2020-24671 represents a critical security vulnerability found in Trace Financial CRESTBridge software that enables unauthorized access to financial transaction processing systems. This vulnerability stems from inadequate input validation and authentication mechanisms within the bridge software that facilitates communication between different financial systems. The flaw allows attackers to manipulate transaction data and potentially execute unauthorized financial operations by exploiting weak cryptographic implementations and insufficient access controls.
The technical implementation of this vulnerability resides in the software's handling of API requests and data serialization processes. Attackers can exploit the vulnerability through specially crafted malicious requests that bypass standard authentication protocols and manipulate transaction parameters. The weakness manifests when the system fails to properly validate incoming data formats and does not adequately sanitize user inputs before processing financial transactions. This vulnerability aligns with CWE-20, which addresses improper input validation, and CWE-312, which deals with exposure of sensitive information through cleartext storage or transmission.
The operational impact of CVE-2020-24671 extends beyond simple data compromise to encompass full financial transaction manipulation capabilities. Organizations utilizing Trace Financial CRESTBridge software face significant risks including unauthorized fund transfers, transaction reversals, and potential data breaches that could affect customer financial information. The vulnerability creates an attack surface that allows threat actors to perform lateral movement within financial networks and potentially escalate privileges to gain deeper system access. This aligns with ATT&CK technique T1071.004 for application layer protocol manipulation and T1566 for credential harvesting through social engineering or system exploitation.
Mitigation strategies for CVE-2020-24671 require immediate implementation of robust input validation controls and enhanced authentication mechanisms. Organizations should deploy comprehensive network monitoring solutions to detect anomalous transaction patterns and unauthorized access attempts. Security patches provided by Trace Financial must be applied immediately to address the underlying cryptographic weaknesses and strengthen the software's authentication framework. Network segmentation should be implemented to isolate financial transaction processing systems from general network access, reducing the potential impact of successful exploitation. Additionally, regular security assessments and penetration testing should be conducted to identify similar vulnerabilities within the financial infrastructure ecosystem.
The vulnerability demonstrates the critical importance of securing financial transaction processing systems and highlights the need for comprehensive security controls throughout the entire financial services supply chain. Organizations must implement defense-in-depth strategies that include both technical controls and administrative procedures to protect against sophisticated attacks targeting financial infrastructure. Regular security awareness training for personnel handling financial systems and continuous monitoring of transaction processing activities are essential components of a robust security posture against threats like CVE-2020-24671.