CVE-2024-2995 in Camera
Summary
by MITRE • 03/27/2024
A vulnerability was found in NUUO Camera up to 20240319 and classified as problematic. This issue affects some unknown processing of the file /deletefile.php. The manipulation of the argument filename leads to denial of service. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-258197 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 05/05/2024
This vulnerability resides within NUUO Camera firmware versions up to 20240319, specifically targeting the /deletefile.php component which handles file deletion operations. The flaw manifests when processing the filename parameter, creating a denial of service condition that can be exploited remotely by attackers. The vulnerability represents a critical security gap in network video surveillance systems where unauthorized users could disrupt normal camera operations through crafted malicious requests. The issue falls under the category of improper input validation where the application fails to properly sanitize or validate the filename argument before processing, allowing potentially malicious input to cause system instability or complete service interruption.
The technical exploitation of this vulnerability occurs through remote manipulation of the filename parameter in the deletefile.php script, which likely lacks proper input validation mechanisms or access controls. When an attacker submits a malformed filename argument, the system's file deletion routine processes this input without adequate sanitization, potentially leading to buffer overflows, resource exhaustion, or other conditions that cause the camera service to become unresponsive or crash entirely. This type of vulnerability aligns with CWE-20, which describes improper input validation, and represents a classic example of how insufficient parameter validation can lead to denial of service conditions in web applications. The remote attack vector means that adversaries do not need physical access to the device and can exploit this weakness from outside the network perimeter.
The operational impact of this vulnerability extends beyond simple service disruption, as it affects the core functionality of surveillance systems that organizations rely upon for security monitoring. When a NUUO camera becomes unresponsive due to this denial of service attack, it creates gaps in security coverage that adversaries can exploit to gain unauthorized access to premises or compromise the integrity of security footage. The vulnerability affects the availability aspect of the CIA triad, potentially allowing attackers to maintain persistent access to surveillance systems while simultaneously disrupting legitimate operations. Organizations using these cameras may experience significant security gaps during attack windows, as the system becomes unavailable for normal file management operations including deletion, which could also be exploited to create additional denial of service conditions.
Mitigation strategies for this vulnerability should include immediate firmware updates from NUUO if available, network segmentation to limit access to camera management interfaces, and implementation of web application firewalls to filter malicious requests targeting the deletefile.php endpoint. Access controls should be implemented to restrict who can access the camera management interfaces, and monitoring should be enabled to detect unusual patterns in file deletion requests. The vulnerability's classification as a publicly disclosed exploit means that organizations should assume the attack vector is already known to threat actors, making immediate remediation critical. Network administrators should also consider implementing intrusion detection systems to monitor for exploitation attempts and establish incident response procedures specifically for surveillance system compromises. According to ATT&CK framework, this vulnerability relates to T1499.004 for network denial of service and T1566.001 for social engineering through manipulation of network infrastructure components. Organizations should also review their supply chain security practices given the vendor's lack of response to early disclosure notifications.