Overview
CVE-2025-63408 identifies a critical security vulnerability affecting Local Agent DVR versions up to and including 6.6.1.0. This vulnerability is a directory traversal flaw that allows an unauthenticated, local attacker to gain unauthorized access to sensitive information, initiate server-side forgery requests (SSRF), and potentially execute arbitrary operating system commands on the affected system. Due to the severity of these potential impacts, immediate action is recommended.
Technical Details
The vulnerability resides in the application’s handling of file paths, allowing attackers to manipulate input parameters to access files and directories outside of the intended scope. By crafting malicious requests with directory traversal sequences (e.g., “../”), an attacker can potentially read sensitive system files like configuration files, password databases, or application logs. The vulnerability also enables Server-Side Request Forgery (SSRF), enabling the attacker to make requests on behalf of the server, potentially accessing internal network resources. Most critically, exploitation could lead to Remote Code Execution (RCE), allowing an attacker to run arbitrary commands on the host operating system.
CVSS Analysis
The reported CVSS score for CVE-2025-63408 is currently marked as N/A. However, given the potential for unauthenticated remote code execution, a more detailed analysis is required. It is highly likely that once a complete CVSS score is calculated, this vulnerability will be rated as critical. Factors contributing to a high score would include: remote exploitation potential, low attack complexity, no required privileges, and the significant impact on confidentiality, integrity, and availability.
Possible Impact
The exploitation of CVE-2025-63408 can have severe consequences:
- Data Breach: Unauthorized access to sensitive information stored on the system.
- System Compromise: Remote code execution allowing attackers to gain complete control of the affected system.
- Lateral Movement: Using the compromised system as a pivot point to attack other systems on the network.
- Denial of Service: Disruption of service due to malicious activities or system instability.
- SSRF Exploitation: Using the vulnerable server to make requests to internal systems or external websites, potentially bypassing firewalls or other security controls.
Mitigation or Patch Steps
The most effective mitigation is to upgrade to a patched version of Local Agent DVR as soon as it becomes available. Check the vendor’s website for the latest updates and security advisories. In the interim, consider the following workaround(s), which are less effective but may reduce the attack surface:
- Restrict Network Access: Limit network access to the Local Agent DVR server to only trusted sources. Use firewall rules to block unauthorized access from external networks.
- Input Validation: Carefully validate all user-supplied input to prevent directory traversal attempts. This is a complex task and should be considered a temporary measure until a patch is available.
- Monitor System Activity: Monitor system logs for suspicious activity that may indicate an attempted exploitation of this vulnerability.
