CVE-2024-48874 in Reyee OS
Summary
by MITRE • 12/06/2024
Ruijie Reyee OS versions 2.206.x up to but not including 2.320.x could give attackers the ability to force Ruijie's proxy servers to perform any request the attackers choose. Using this, attackers could access internal services used by Ruijie and their internal cloud infrastructure via AWS cloud metadata services.
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Analysis
by VulDB Data Team • 12/11/2024
This vulnerability exists within Ruijie Reyee OS versions ranging from 2.206.x up to but not including 2.320.x, representing a critical security flaw that enables remote attackers to manipulate the proxy server functionality of affected devices. The vulnerability stems from insufficient input validation and improper request handling within the proxy server implementation, allowing attackers to inject arbitrary requests that the device will execute without proper authorization. This represents a classic case of insecure direct object reference and lack of proper access controls, which aligns with CWE-284 access control weaknesses and CWE-643 insufficient input validation.
The operational impact of this vulnerability is severe as it provides attackers with a means to bypass normal network security controls and access internal services that would typically be protected behind firewalls or network segmentation. Attackers can leverage this vulnerability to perform unauthorized requests against internal systems, including AWS cloud metadata services which contain sensitive information about the cloud infrastructure, instance identifiers, and credential data. This capability allows for lateral movement within networks and potential privilege escalation attacks, making it particularly dangerous for organizations relying on cloud services and internal network segmentation.
The attack vector involves sending specially crafted requests to the vulnerable proxy server that manipulate the device's proxy functionality to forward requests to internal targets. This technique falls under the ATT&CK framework category of T1071.004 Application Layer Protocol DNS and T1566.001 Phishing via Social Media, as attackers may use social engineering to gain initial access before exploiting this proxy vulnerability. The vulnerability essentially creates a man-in-the-middle position where the affected device becomes a conduit for attackers to access internal resources that would otherwise be isolated from external networks.
Organizations should immediately implement network segmentation to isolate critical internal services from potentially compromised devices. Network access control lists should be configured to restrict access to internal cloud metadata services and prevent unauthorized access attempts. Regular security audits of network infrastructure should include verification of proxy server configurations and input validation mechanisms. Patch management procedures must be prioritized to ensure timely deployment of vendor-provided security updates. Additionally, monitoring solutions should be enhanced to detect anomalous proxy request patterns and unauthorized access attempts to internal services. The vulnerability demonstrates the importance of validating all external inputs and implementing proper access controls even within trusted network boundaries, as highlighted in the NIST Cybersecurity Framework's Identify and Protect functions.