CVE-2017-7925 in DH-IPC-Hxxxxxxxxx
Summary
by MITRE
A Password in Configuration File issue was discovered in Dahua DH-IPC-HDBW23A0RN-ZS, DH-IPC-HDBW13A0SN, DH-IPC-HDW1XXX, DH-IPC-HDW2XXX, DH-IPC-HDW4XXX, DH-IPC-HFW1XXX, DH-IPC-HFW2XXX, DH-IPC-HFW4XXX, DH-SD6CXX, DH-NVR1XXX, DH-HCVR4XXX, DH-HCVR5XXX, DHI-HCVR51A04HE-S3, DHI-HCVR51A08HE-S3, and DHI-HCVR58A32S-S2 devices. The password in configuration file vulnerability was identified, which could lead to a malicious user assuming the identity of a privileged user and gaining access to sensitive information.
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Analysis
by VulDB Data Team • 12/22/2020
The vulnerability identified as CVE-2017-7925 represents a critical security flaw in Dahua surveillance equipment spanning multiple IPC and NVR device models. This configuration file weakness stems from improper handling of authentication credentials within the device's software architecture, creating a pathway for unauthorized access to privileged system functions. The vulnerability manifests when passwords are stored in plaintext within configuration files, making them accessible to malicious actors who can exploit this misconfiguration to escalate their privileges and gain unauthorized access to sensitive system information.
This issue directly maps to CWE-798, which categorizes the use of hard-coded credentials in configuration files as a severe security weakness. The flaw operates at the application level within the device firmware, where authentication mechanisms fail to properly secure credential storage. Attackers can leverage this vulnerability through various attack vectors including network reconnaissance, configuration file enumeration, and privilege escalation techniques that exploit the insecure storage of authentication tokens. The vulnerability affects a wide range of Dahua products including high-definition cameras, dome cameras, and network video recorders, indicating a systemic flaw in the company's security implementation across their product line.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass complete system compromise and data exfiltration capabilities. An attacker who successfully exploits this weakness can assume the identity of privileged users, potentially gaining access to video feeds, system configuration parameters, user management settings, and other sensitive operational data. The vulnerability's persistence across multiple device generations suggests that the underlying architectural flaw was not properly addressed during firmware development cycles. This creates a significant risk for organizations relying on Dahua surveillance systems, as the compromise of a single device can potentially lead to broader network infiltration and unauthorized surveillance access.
Mitigation strategies for this vulnerability require immediate action including firmware updates from Dahua, proper credential management practices, and network segmentation to limit access to affected devices. Organizations should implement network monitoring to detect unauthorized access attempts and conduct thorough security assessments of their surveillance infrastructure. The vulnerability highlights the importance of following security standards such as NIST SP 800-53 and ISO 27001 for secure configuration management. Additionally, implementing principle of least privilege access controls and regular security audits can help prevent exploitation of similar credential storage vulnerabilities. The attack surface for this vulnerability aligns with ATT&CK technique T1548.001, which covers privilege escalation through the use of configuration files containing credentials, making it a critical target for security hardening efforts and incident response planning.