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CVE-2025-24322: Unsafe Default Authentication Vulnerability in Tenda AC6

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Overview

CVE-2025-24322 is a critical security vulnerability that affects the Initial Setup Authentication feature of the Tenda AC6 V5.0 V02.03.01.110. This vulnerability, if exploited, can allow an attacker to execute arbitrary code and potentially gain unauthorized access to the system. This poses a significant risk to all users of the affected device, as it can lead to data leakage or complete system compromise. As such, it is crucial for users and administrators to understand this vulnerability and take appropriate steps to mitigate its impact.

Vulnerability Summary

CVE ID: CVE-2025-24322
Severity: High (8.1 CVSS)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

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Product | Affected Versions

Tenda AC6 | V5.0 V02.03.01.110

How the Exploit Works

The vulnerability exists due to an unsafe default authentication mechanism in the Initial Setup Authentication functionality of the Tenda AC6 V5.0 V02.03.01.110. This allows attackers to send specially crafted network requests that can lead to arbitrary code execution. The flaw enables the attacker to browse to the device and trigger this vulnerability. This could allow the attacker to take control of an affected system or leak sensitive data.

Conceptual Example Code

This is a conceptual example of how an attacker could potentially exploit this vulnerability via a malicious network request. Note that the actual exploit would be specific to the system and the attacker’s goals, this is merely a hypothetical example:

GET /initialSetupAuth HTTP/1.1
Host: target.example.com
User-Agent: Mozilla/5.0
{ "malicious_payload": "arbitrary_code_to_be_executed" }

In this example, the attacker sends a GET request to the vulnerable endpoint (`/initialSetupAuth`) with a malicious payload that includes the arbitrary code to be executed.

Countermeasures

The most reliable countermeasure is to apply the vendor-released patch for this vulnerability. If the patch has not been released or cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation method. It is also advisable to regularly update and patch your systems and software to protect against these types of vulnerabilities.

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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.

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