CVE-2022-30564 in IPC
Summary
by MITRE • 02/09/2023
Some Dahua embedded products have a vulnerability of unauthorized modification of the device timestamp. By sending a specially crafted packet to the vulnerable interface, an attacker can modify the device system time.
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Analysis
by VulDB Data Team • 03/09/2023
The vulnerability identified as CVE-2022-30564 affects various Dahua embedded security products that incorporate network services for device management and monitoring. This flaw represents a critical security weakness in the time synchronization mechanisms of these devices, which are widely deployed in surveillance and access control systems across enterprise and industrial environments. The vulnerability stems from insufficient input validation and authentication controls within the device's network communication protocols, specifically targeting the system time management functionality that is essential for maintaining audit trails and security logging integrity.
The technical implementation of this vulnerability allows attackers to manipulate the device timestamp through crafted network packets transmitted to specific vulnerable interfaces. This flaw operates at the protocol level where the device fails to properly authenticate or validate timestamp modification requests, enabling any remote attacker with network access to alter the system time without proper authorization. The vulnerability manifests when the device processes incoming packets containing malformed time update commands, which bypass normal access controls and validation procedures. This represents a direct violation of the principle of least privilege and demonstrates inadequate input sanitization practices that align with CWE-20 weakness classification related to improper input validation.
The operational impact of this vulnerability extends beyond simple time manipulation and creates significant security implications for organizations relying on these devices for critical infrastructure monitoring. When an attacker successfully modifies the device timestamp, they can effectively obscure their malicious activities by manipulating log entries and audit trails, making it difficult for security teams to establish accurate timelines of events. This manipulation can also disrupt time-sensitive security operations such as authentication token validation, certificate expiration tracking, and compliance reporting that depends on accurate temporal data. The vulnerability undermines the fundamental security assumptions of time-based integrity mechanisms and creates opportunities for attackers to conduct persistent surveillance while avoiding detection through temporal obfuscation.
Organizations should implement immediate mitigations including network segmentation to isolate vulnerable devices from untrusted networks, deployment of intrusion detection systems to monitor for suspicious timestamp modification attempts, and regular firmware updates from Dahua to address the identified vulnerability. Network access controls should be strengthened to limit administrative access to only trusted sources and implement multi-factor authentication for time-sensitive operations. The vulnerability also highlights the importance of secure network protocol implementation and proper input validation as outlined in the ATT&CK framework's defense evasion techniques. System administrators should conduct comprehensive vulnerability assessments of all embedded devices in their network infrastructure and establish monitoring procedures specifically designed to detect unauthorized timestamp modifications. Additionally, organizations should review their incident response procedures to ensure they can effectively investigate and remediate potential timestamp manipulation activities that may have occurred prior to implementing protective measures.