Overview
CVE-2025-63432 identifies a critical security vulnerability affecting the Xtooltech Xtool AnyScan Android Application version 4.40.40 and prior. This flaw stems from a failure to properly validate the TLS certificate from the application’s update server. This lack of validation creates a significant risk, allowing attackers on the same network to conduct Man-in-the-Middle (MITM) attacks. Successfully exploiting this vulnerability can enable attackers to intercept, decrypt, and modify traffic between the app and the update server, potentially leading to Remote Code Execution (RCE) on the affected device.
Technical Details
The core issue lies in the Xtool AnyScan application’s inability to adequately verify the SSL/TLS certificate presented by its update server. Without proper certificate validation, the application is susceptible to a MITM attack. An attacker positioned on the same network as the user can intercept the communication between the application and the update server. By presenting a malicious certificate, the attacker can impersonate the legitimate update server. Once the connection is established, the attacker can decrypt, inspect, and modify the traffic. This opens the door to delivering malicious updates, injecting arbitrary code, or stealing sensitive data. The application trusts the forged connection without proper verification, making it vulnerable to malicious activity.
CVSS Analysis
Currently, a CVSS score and severity rating are not yet available for CVE-2025-63432 (N/A). However, considering the potential for Remote Code Execution (RCE) stemming from a successful MITM attack, a high CVSS score is anticipated. The ability to remotely execute code on a user’s device without their knowledge or consent represents a severe security risk.
Possible Impact
The exploitation of CVE-2025-63432 can have serious consequences:
- Remote Code Execution (RCE): Attackers can gain complete control over the affected Android device, enabling them to install malware, steal data, and monitor user activity.
- Data Theft: Sensitive data transmitted between the application and the update server, such as user credentials or diagnostic information, can be intercepted and stolen.
- Malicious Updates: Attackers can deliver malicious updates disguised as legitimate software updates, compromising the device’s security and functionality.
- Vehicle Security Risks: Given Xtool AnyScan’s automotive diagnostic capabilities, successful RCE could potentially lead to unauthorized access and manipulation of vehicle systems, posing a safety risk.
Mitigation or Patch Steps
To mitigate the risks associated with CVE-2025-63432, the following steps are recommended:
- Update the Xtool AnyScan Application: Immediately update to the latest version of the Xtool AnyScan application as soon as a patch is released by Xtooltech. This patch should address the SSL certificate validation issue.
- Avoid Using Public Wi-Fi: Exercise caution when using public Wi-Fi networks, as they are more susceptible to MITM attacks. Use a VPN for added security.
- Monitor Network Traffic: If possible, monitor network traffic for suspicious activity that might indicate a MITM attack.
- Contact Xtooltech Support: Contact Xtooltech support for the latest information regarding the vulnerability and available updates.
References
CVE-2025-63432 Reference (GitHub)
NowSecure Blog: Remote Code Execution Discovered in Xtool AnyScan App
