Remote Aztech DSL5005EN Router Vulnerability: Unauthenticated Admin Password Change

TL;DR

The Aztech DSL5005EN router has a severe vulnerability allowing unauthenticated admin password changes via the ‘sysAccess.asp’ page. This flaw poses significant risks to network security. Users are advised to update their firmware immediately to mitigate this threat.

Introduction

The Aztech DSL5005EN router has been found to have a critical vulnerability that enables unauthenticated users to change the admin password through the ‘sysAccess.asp’ page. This security flaw can lead to unauthorized access and potential network compromises. Understanding this vulnerability and taking immediate action is crucial for maintaining network integrity and security.

Vulnerability Overview

The vulnerability in the Aztech DSL5005EN router allows attackers to change the admin password without any authentication. This is facilitated through the ‘sysAccess.asp’ page, which lacks proper security measures to prevent unauthorized access.

Impact and Risks

• Unauthorized Access: Attackers can gain full control over the router, leading to further network infiltration.
• Data Breach: Sensitive information passing through the router can be intercepted and compromised.
• Network Disruption: Malicious actors can disrupt network services, affecting all connected devices.

Technical Details

The vulnerability is due to a lack of authentication checks on the ‘sysAccess.asp’ page. By exploiting this flaw, attackers can send crafted requests to change the admin password, thereby gaining unauthorized access to the router’s administrative interface.

For more technical details, refer to the [source]¹.

Mitigation Strategies

To protect against this vulnerability, users should:

• Update Firmware: Ensure the router’s firmware is up-to-date with the latest security patches.
• Change Default Credentials: Use strong, unique passwords for the admin account.
• Enable Firewall: Implement firewall rules to restrict unauthorized access to the router’s management interface.

Conclusion

The unauthenticated admin password change vulnerability in the Aztech DSL5005EN router highlights the importance of regular firmware updates and robust security practices. Users must take immediate action to secure their networks and prevent potential cyber threats.

Additional Resources

For further insights, check:

• Exploit Database Entry

References

1. (2025). “Aztech DSL5005EN Router - ‘sysAccess.asp’ Admin Password Change (Unauthenticated)”. Exploit Database. Retrieved 2025-03-22. ↩︎