CVE-2024-35102 in AvediaServer avsrv-m8105
Summary
by MITRE • 05/15/2024
Insecure Permissions vulnerability in VITEC AvediaServer (Model avsrv-m8105) 8.6.2-1 allows a remote attacker to escalate privileges via a crafted script.
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Analysis
by VulDB Data Team • 05/15/2024
The VITEC AvediaServer model avsrv-m8105 running firmware version 8.6.2-1 contains a critical insecure permissions vulnerability that exposes the system to remote privilege escalation attacks. This vulnerability stems from improper access control mechanisms within the server's scripting interface, where malicious actors can exploit weak permission controls to execute unauthorized operations with elevated privileges. The flaw specifically affects the server's handling of script execution and file permissions, creating an attack vector that allows remote adversaries to bypass normal authentication and authorization checks.
This vulnerability represents a significant security weakness that aligns with CWE-276, which addresses incorrect permissions for critical resources, and CWE-732, which covers inadequate permissions for critical system resources. The insecure permissions issue manifests when the system fails to properly validate or enforce access controls during script processing operations, enabling attackers to manipulate the execution environment and gain unauthorized access to system functions. The vulnerability's impact extends beyond simple privilege escalation as it provides attackers with the capability to modify system configurations, access sensitive data, and potentially compromise the entire server infrastructure.
The operational impact of this vulnerability is severe for organizations relying on VITEC AvediaServer for video surveillance and streaming services. Remote attackers can exploit this flaw to execute malicious scripts with administrative privileges, potentially leading to complete system compromise, data exfiltration, or service disruption. The vulnerability's remote exploitability means that attackers do not require physical access or local network presence to initiate the attack, making it particularly dangerous in enterprise environments where such servers might be exposed to external networks. Organizations using this specific model and firmware version face increased risk of unauthorized access to their surveillance systems, which could result in privacy violations, operational disruptions, and potential regulatory compliance issues.
Security mitigations for this vulnerability should prioritize immediate firmware updates from VITEC to address the insecure permissions implementation. Organizations should also implement network segmentation to isolate affected servers from critical infrastructure, enforce strict firewall rules to limit access to necessary ports only, and conduct comprehensive security assessments of their surveillance systems. Additionally, implementing robust monitoring solutions to detect unauthorized script execution attempts and establishing incident response procedures for potential exploitation attempts will help minimize potential damage. The ATT&CK framework categorizes this vulnerability under privilege escalation techniques, specifically T1068, which involves exploiting vulnerabilities to gain elevated privileges. Organizations should also consider implementing principle of least privilege access controls, regularly auditing system permissions, and maintaining detailed logs of all script execution activities to detect and respond to potential exploitation attempts effectively.