CVE-2022-21134 in RLC-410W
Summary
by MITRE • 01/28/2022
A firmware update vulnerability exists in the "update" firmware checks functionality of reolink RLC-410W v3.0.0.136_20121102. A specially-crafted HTTP request can lead to firmware update. An attacker can send a sequence of requests to trigger this vulnerability.
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Analysis
by VulDB Data Team • 02/02/2022
The CVE-2022-21134 vulnerability represents a critical firmware update flaw in the Reolink RLC-410W security camera model, specifically affecting firmware version 3.0.0.136_20121102. This vulnerability resides within the device's firmware update verification mechanism, creating a potential pathway for unauthorized firmware manipulation. The issue stems from insufficient validation of update requests, allowing malicious actors to exploit the update functionality through crafted HTTP communications. The vulnerability is particularly concerning as it directly impacts the device's security integrity and could enable attackers to install malicious firmware versions that compromise the entire surveillance system.
The technical exploitation of this vulnerability occurs through a carefully constructed sequence of HTTP requests that bypass the normal firmware update validation checks. This flaw falls under CWE-284 Access Control Issues, specifically manifesting as improper access control during firmware update operations. Attackers can leverage this vulnerability to execute unauthorized firmware updates without proper authentication or authorization, potentially installing backdoors or modifying core system components. The vulnerability's exploitation requires minimal privileges and can be executed remotely, making it particularly dangerous for networked security devices that are often deployed in unattended locations.
From an operational perspective, this vulnerability presents significant risks to organizations relying on Reolink RLC-410W cameras for security monitoring. The ability to remotely manipulate firmware updates creates opportunities for persistent threats that could remain undetected for extended periods. The vulnerability aligns with ATT&CK technique T1547.001 Account Manipulation and T1071.004 Application Layer Protocol HTTP, as attackers can use standard web protocols to exploit the device. Organizations may face potential data breaches, system compromise, and complete loss of surveillance capabilities if this vulnerability remains unpatched, particularly in critical infrastructure or enterprise security environments where these devices are commonly deployed.
Mitigation strategies for CVE-2022-21134 should prioritize immediate firmware updates from Reolink to address the identified vulnerability. Network administrators should implement strict firewall rules to restrict access to the camera's update endpoints and consider network segmentation to isolate security devices from general network traffic. The implementation of intrusion detection systems capable of monitoring for unusual HTTP traffic patterns targeting firmware update endpoints provides additional defensive layers. Organizations should also conduct comprehensive vulnerability assessments of their entire network infrastructure to identify other potentially affected devices from the same manufacturer or with similar update mechanisms. Regular security audits and firmware update policies should be established to prevent similar vulnerabilities from being exploited in the future, aligning with industry best practices for IoT device security management.