CVE-2024-41882 in XRN-420S
Summary
by MITRE • 12/24/2024
Team ENVY, a Security Research TEAM has found a flaw that allows for a remote code execution on the NVR. An attacker can cause a stack overflow by entering large data into URL parameters, which will result in a system reboot. The manufacturer has released patch firmware for the flaw, please refer to the manufacturer's report for details and workarounds.
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Analysis
by VulDB Data Team • 10/01/2025
The vulnerability identified as CVE-2024-41882 represents a critical remote code execution flaw in Network Video Recorder (NVR) systems, specifically affecting Team ENVY devices. This security weakness stems from inadequate input validation mechanisms within the web interface handling of URL parameters, creating an exploitable condition that allows remote attackers to manipulate system behavior through crafted malicious inputs. The vulnerability exists in the application's handling of user-supplied data within the URL structure, where insufficient bounds checking permits excessive data to be processed.
The technical implementation of this flaw manifests as a stack overflow condition that occurs when attackers submit oversized payloads through URL parameters. This particular vulnerability maps to CWE-121, which describes stack-based buffer overflow conditions, and also aligns with CWE-787, representing out-of-bounds write vulnerabilities that can occur when data exceeds allocated buffer space. The stack overflow vulnerability creates a condition where the program's execution flow becomes corrupted, potentially allowing an attacker to overwrite critical memory locations including return addresses and function pointers, thereby enabling arbitrary code execution. The exploitation process leverages the predictable nature of stack memory layout to inject and execute malicious code within the system's memory space.
From an operational perspective, the impact of this vulnerability extends beyond simple remote code execution to include system instability and potential denial of service conditions. The described behavior of causing system reboot represents a significant operational risk, as it can disrupt surveillance operations and potentially provide attackers with opportunities to establish persistent access points. The vulnerability's remote nature means that attackers do not require physical access to the device, making it particularly dangerous for security infrastructure deployments. This characteristic aligns with ATT&CK technique T1210, which describes exploitation of remote services, and T1072, covering software deployment methods that can be used to establish persistence.
The security implications of CVE-2024-41882 extend to enterprise and industrial environments where NVR systems serve as critical components of security infrastructure. Organizations utilizing these devices face potential exposure to attackers who could leverage this vulnerability to gain unauthorized access to surveillance footage, modify system configurations, or establish backdoor access points. The vulnerability's presence in network video recording systems represents a concerning trend in IoT and security device exploitation, where manufacturers often overlook fundamental security principles in favor of rapid deployment and feature implementation. The fact that the manufacturer has released firmware patches indicates that this vulnerability was properly identified and addressed through standard security response protocols, emphasizing the importance of maintaining current firmware versions and implementing proper security monitoring procedures.
Organizations should implement immediate mitigation strategies including firmware updates, network segmentation, and access control measures to reduce exposure risk. The patching process should be prioritized across all affected devices, with particular attention to systems that are internet-facing or lack proper network isolation. Network monitoring should be enhanced to detect unusual traffic patterns that may indicate exploitation attempts, while access controls should be enforced to limit who can submit URL parameters to the affected systems. The vulnerability serves as a reminder of the critical importance of secure coding practices and input validation in embedded systems, particularly those handling user inputs through web interfaces. Security teams should also consider implementing intrusion detection systems that can identify potential exploitation attempts targeting similar buffer overflow vulnerabilities in other network services and applications.