Ameeba Security Research

Defensive CVE and exploit intelligence

Ameeba Blog Search
TRENDING · 1 WEEK
Attack Vector
Vendor
Severity

CVE-2025-51452: Bypass Login Vulnerability in TOTOLINK A7000R Firmware

Views: 432

Overview

In the world of cybersecurity, the detection and mitigation of vulnerabilities is vital to maintaining the security integrity of our systems. One such vulnerability, identified as CVE-2025-51452, affects TOTOLINK A7000R firmware 9.1.0u.6115_B20201022. This vulnerability can allow an attacker to bypass the login process and potentially compromise the system or leak data. This vulnerability has a significant impact on all users of the affected firmware, as it can lead to unauthorized access and breach of sensitive data.

Vulnerability Summary

CVE ID: CVE-2025-51452
Severity: Critical, CVSS Score 9.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Unauthorized access, potential system compromise, and data leakage

Affected Products

Ameeba Chat Icon Share secrets securely

Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.

Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.

  • • Encrypted identity
  • • Private Spaces for organizations and teams
  • • End-to-end encrypted chat, calls, files, and notes
  • • Sensitive AI work and protected collaboration
  • • Built for information that cannot leak

Our mission is to secure human work alongside AI.

Product | Affected Versions

TOTOLINK A7000R Firmware | 9.1.0u.6115_B20201022

How the Exploit Works

The vulnerability lies within the formLoginAuth.htm of the TOTOLINK A7000R firmware. An attacker can exploit this vulnerability by sending a specific request to this URL. This request allows the attacker to bypass the login process without needing any valid credentials. Once bypassed, the attacker gains unauthorized access to the system which can lead to compromise and data leakage.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. The specific malicious payload details are omitted for ethical reasons.

POST /formLoginAuth.htm HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
{ "bypass_login": "True" }

In this example, the attacker sends a POST request to the `formLoginAuth.htm` endpoint. The `bypass_login` parameter is set to `True`, which, due to the vulnerability, allows the attacker to bypass the login process and gain access to the system.

Mitigation

Until a vendor patch is available, it is recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to mitigate this vulnerability. These systems can be configured to detect and block the specific request used to exploit this vulnerability. Regularly updating your systems and applying patches as soon as they become available should be a standard practice in your cybersecurity strategy.

Want to discuss this further? Join the Ameeba Cybersecurity Group Chat.

Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

More posts

Ameeba Chat