CVE-2025-68707: Tongyu AX1800 Auth Bypass Vulnerability

CVE-2025-68707 Overview

An authentication bypass vulnerability has been identified in the Tongyu AX1800 Wi-Fi 6 Router running firmware version 1.0.0. This vulnerability allows unauthenticated network-adjacent attackers to perform arbitrary configuration changes to the device without providing valid credentials, provided that a valid admin session is currently active. Successful exploitation grants attackers full compromise of the affected router through unauthenticated access to sensitive administrative endpoints including /boaform/formSaveConfig and /boaform/admin.

Critical Impact

Network-adjacent attackers can achieve full device compromise and perform arbitrary configuration changes without authentication when an admin session exists.

Affected Products

• Tongyu AX1800 Wi-Fi 6 Router
• Firmware version 1.0.0

Discovery Timeline

• January 13, 2026 - CVE-2025-68707 published to NVD
• January 13, 2026 - Last updated in NVD database

Technical Details for CVE-2025-68707

Vulnerability Analysis

This authentication bypass vulnerability affects the web-based management interface of the Tongyu AX1800 Wi-Fi 6 Router. The flaw allows network-adjacent attackers to interact with privileged administrative endpoints without proper authentication checks. When an administrator has an active session on the device, the router fails to properly validate whether incoming requests to sensitive endpoints originate from the authenticated session, enabling session riding attacks.

The vulnerable endpoints /boaform/formSaveConfig and /boaform/admin are responsible for critical router configuration functions. Access to these endpoints allows attackers to modify router settings, potentially enabling further network compromise, traffic interception, or denial of service conditions.

Root Cause

The vulnerability stems from improper session management and insufficient authentication validation in the router's web interface. The device does not adequately verify that requests to administrative endpoints are associated with an authenticated session, relying instead on the mere existence of an active admin session. This allows any network-adjacent attacker to submit requests to protected endpoints when an administrator is logged in.

Attack Vector

Exploitation requires the attacker to be on the same network segment as the target router (network-adjacent positioning). The attack can be executed when a legitimate administrator has an active management session. The attacker can directly access the vulnerable endpoints and submit configuration changes without presenting valid credentials or session tokens.

The attack flow involves:

1. Attacker positions themselves on the same network as the target router
2. Attacker waits for or detects an active administrator session
3. Attacker sends crafted requests to /boaform/formSaveConfig or /boaform/admin endpoints
4. The router processes the requests as if they were from the authenticated administrator
5. Attacker gains full control over router configuration

Detection Methods for CVE-2025-68707

Indicators of Compromise

• Unexpected configuration changes to the Tongyu AX1800 router, including modified DNS settings, firewall rules, or administrative credentials
• Log entries showing requests to /boaform/formSaveConfig or /boaform/admin from unexpected internal IP addresses
• Multiple simultaneous connections to the router's web management interface from different source addresses
• Unexplained changes to wireless network settings or access controls

Detection Strategies

• Monitor network traffic for HTTP requests to /boaform/formSaveConfig and /boaform/admin endpoints, especially from devices that should not have administrative access
• Implement network segmentation and restrict access to router management interfaces to designated administrative workstations only
• Deploy network intrusion detection systems (NIDS) with rules to detect unauthorized access attempts to router management endpoints
• Enable and regularly review router access logs for anomalous administrative activity patterns

Monitoring Recommendations

• Configure alerts for any configuration changes to the router that occur outside of scheduled maintenance windows
• Monitor for unusual network traffic patterns that may indicate an attacker leveraging compromised router settings
• Implement periodic configuration audits comparing current settings against known-good baselines
• Track all devices connecting to the router's management interface and investigate unknown sources

How to Mitigate CVE-2025-68707

Immediate Actions Required

• Limit access to the router's web management interface to trusted devices only using firewall rules or access control lists
• Ensure administrators log out immediately after completing configuration tasks rather than leaving sessions active
• Consider disabling remote management access if not strictly required
• Segment the network to isolate the router management interface from general user traffic
• Monitor for vendor firmware updates that address this vulnerability

Patch Information

At the time of publication, no vendor patch has been confirmed for this vulnerability. Organizations should monitor the Tongyu AX1800 Product Page for firmware updates. Additional technical details are available in the GitHub CVE-2025-68707 Details.

Workarounds

• Restrict management interface access to a dedicated VLAN or management network segment
• Implement strict access control lists (ACLs) limiting which IP addresses can reach the router's web interface
• Configure session timeouts to minimize the window of opportunity for exploitation
• Consider placing a firewall or reverse proxy in front of the management interface to add authentication layers
• If the router supports it, disable the web management interface entirely and use alternative management methods

# Example network segmentation approach (varies by network infrastructure)
# Create a dedicated management VLAN and restrict access to router admin interface
# Specific commands depend on your network equipment

# On upstream firewall/switch, restrict access to router management IP
# Allow only designated admin workstation (e.g., 192.168.100.10) to reach router (192.168.1.1)
# iptables example for a Linux-based gateway:
iptables -A FORWARD -s 192.168.100.10 -d 192.168.1.1 -p tcp --dport 80 -j ACCEPT
iptables -A FORWARD -s 192.168.100.10 -d 192.168.1.1 -p tcp --dport 443 -j ACCEPT
iptables -A FORWARD -d 192.168.1.1 -p tcp --dport 80 -j DROP
iptables -A FORWARD -d 192.168.1.1 -p tcp --dport 443 -j DROP