Overview
CVE-2025-66576 details a significant security vulnerability found in Remote Keyboard Desktop version 1.0.1. This flaw allows remote attackers to execute arbitrary system commands without authentication. The vulnerability stems from the improper handling of the rundll32.exe exported function export, enabling unauthenticated code execution. This poses a severe risk to systems running the vulnerable software.
Technical Details
The vulnerability in Remote Keyboard Desktop 1.0.1 arises from the way the application handles commands passed to the rundll32.exe utility. Specifically, the exported function export does not properly validate or sanitize input, allowing an attacker to inject malicious commands that will be executed with the privileges of the application. Because authentication is not required to trigger this flaw, a remote, unauthenticated attacker can leverage this vulnerability to gain control of the affected system.
The attack vector involves crafting a malicious request that includes a command to be executed by rundll32.exe. When the application processes this request, it inadvertently executes the attacker-controlled command, leading to remote code execution.
CVSS Analysis
Currently, the CVSS score is listed as N/A. However, given the nature of the vulnerability (unauthenticated remote code execution), it is expected to receive a critical CVSS score, likely in the range of 9.0 to 10.0, once officially calculated. This is due to the ease of exploitation and the potential for complete system compromise.
Possible Impact
The potential impact of CVE-2025-66576 is substantial. Successful exploitation can lead to:
- Complete System Compromise: Attackers can gain full control of the affected system.
- Data Breach: Sensitive data stored on the system can be accessed and exfiltrated.
- Malware Installation: Attackers can install malware, including ransomware, keyloggers, and botnet agents.
- Denial of Service (DoS): Attackers can disrupt the availability of the system and its services.
- Lateral Movement: Attackers can use the compromised system as a launching point to attack other systems on the network.
Mitigation or Patch Steps
Currently, the best course of action is to uninstall Remote Keyboard Desktop 1.0.1. Due to the severity of the vulnerability, continued use of the software poses a significant security risk.
Recommendations for mitigation include:
- Uninstall the Application: Remove Remote Keyboard Desktop 1.0.1 from all affected systems immediately.
- Monitor Network Traffic: Watch for suspicious network activity that might indicate exploitation attempts.
- Implement Network Segmentation: Limit the potential impact of a successful exploit by isolating critical systems and networks.
- Apply Patches (If Available): If a patch is released by the vendor, apply it immediately after thorough testing in a non-production environment. Check the vendor’s website and security advisories for updates.
It is crucial to monitor the vendor’s website (remotecontrolio.web.app) and other security resources for updates and patches regarding this vulnerability.
