CVE-2023-32645 in YF325
Summary
by MITRE • 10/25/2023
A leftover debug code vulnerability exists in the httpd debug credentials functionality of Yifan YF325 v1.0_20221108. A specially crafted network request can lead to authentication bypass. An attacker can send a network request to trigger this vulnerability.
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Analysis
by VulDB Data Team • 10/25/2023
The vulnerability identified as CVE-2023-32645 represents a critical security flaw in the Yifan YF325 v1.0_20221108 web server implementation. This issue stems from the presence of debug code that was inadvertently left in the production software, creating an unauthorized access vector that undermines the system's authentication mechanisms. The vulnerability specifically affects the httpd debug credentials functionality, which should have been removed during the software development lifecycle but remained accessible in the deployed version.
The technical exploitation of this vulnerability occurs through specially crafted network requests that leverage the debug functionality to bypass normal authentication procedures. This type of flaw falls under the CWE-489 category of "Leftover Debug Code," which is classified as a security weakness that occurs when debugging code or features are not properly removed from production code. The debug credentials functionality in this case appears to have been implemented with hardcoded authentication values or simplified authentication mechanisms that were intended for development and testing purposes only.
The operational impact of CVE-2023-32645 is significant as it allows attackers to gain unauthorized access to the affected web server without proper credentials. This authentication bypass capability can lead to complete system compromise, data exfiltration, and potential lateral movement within network environments where the affected device operates. The vulnerability is particularly concerning because it requires no specialized knowledge of the system's internal workings beyond sending a crafted HTTP request, making it accessible to attackers with minimal technical expertise. The attack vector is straightforward and can be executed remotely, eliminating the need for physical access or complex exploitation techniques.
Security professionals should immediately assess their network environments for devices running Yifan YF325 v1.0_20221108 and implement mitigations including firmware updates from the vendor, network segmentation to isolate affected devices, and monitoring for suspicious network traffic patterns. The ATT&CK framework categorizes this vulnerability under T1078 Valid Accounts, as it enables adversaries to operate with elevated privileges through compromised authentication mechanisms. Additionally, the vulnerability aligns with T1190 Exploit Public-Facing Application, as it represents an accessible attack surface that can be exploited through network-based methods. Organizations should also consider implementing network intrusion detection systems to identify and block requests that attempt to access debug functionality, while ensuring proper access controls and authentication mechanisms are in place to prevent similar issues in future deployments.