Tenda India Breach Incident Score: Analysis & Impact (TEN4022640112425)

In this Rankiteo incident briefing, we review the Tenda India breach identified under incident ID TEN4022640112425.

The analysis begins with a detailed overview of Tenda India's information like the linkedin page: https://www.linkedin.com/company/tenda-india, the number of followers: 1090, the industry type: Computer Networking Products and the number of employees: 20 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 750 and after the incident was 748 with a difference of -2 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on Tenda India and their customers.

Tenda Technology recently reported "High-Severity Command Injection Vulnerabilities in Tenda N300 Wi-Fi 4G LTE Router and 4G03 Pro Model", a noteworthy cybersecurity incident.

High-severity command injection vulnerabilities have been discovered in Tenda’s N300 Wi-Fi 4G LTE Router and the 4G03 Pro model, enabling authenticated attackers to execute arbitrary commands with root privileges on affected devices.

The disruption is felt across the environment, affecting Tenda N300 Wi-Fi 4G LTE Router and Tenda 4G03 Pro Model.

In response, moved swiftly to contain the threat with measures like Users advised to discontinue use until patches are available and Consider alternative networking solutions, and stakeholders are being briefed through Public disclosure of vulnerabilities and Advisories from CERT/CC.

The case underscores how Ongoing (No patches available; vulnerabilities publicly disclosed), teams are taking away lessons such as Critical vulnerabilities in widely used networking devices can expose users to severe risks if left unpatched, Lack of vendor response to disclosed vulnerabilities underscores the importance of proactive security measures by end-users and Reverse engineering of firmware can reveal hidden flaws in embedded systems, and recommending next steps like Discontinue use of affected Tenda N300 and 4G03 Pro devices until official patches are released, Deploy alternative networking solutions with active security support and Monitor for unusual network traffic or unauthorized configuration changes on affected devices, with advisories going out to stakeholders covering CERT/CC advisory on Tenda vulnerabilities.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (95%), with evidence including authenticated attackers can exploit via crafted HTTP requests (TCP ports 80 or 7329), and cVE-2025-13207/CVE-2024-24481 such as command injection via /usr/sbin/httpd or web interface and Valid Accounts: Default Accounts (T1078.001) with moderate to high confidence (85%), supported by evidence indicating authenticated attackers implies use of valid credentials (potentially default/admin accounts). Under the Execution tactic, the analysis identified Command and Scripting Interpreter: Unix Shell (T1059.004) with high confidence (100%), with evidence including execute arbitrary commands with root privileges, and command injection vulnerabilities. Under the Privilege Escalation tactic, the analysis identified Exploitation for Privilege Escalation (T1068) with high confidence (100%), with evidence including execute arbitrary commands with **root privileges**, and full control over the device. Under the Persistence tactic, the analysis identified Create or Modify System Process: Launch Daemon (T1543.003) with high confidence (90%), with evidence including establish persistent backdoors, and full control over the device enables modifying startup scripts/services and Account Manipulation: SSH Authorized Keys (T1098.004) with moderate to high confidence (80%), supported by evidence indicating persistent backdoor establishment (common via SSH keys on Linux/embedded devices). Under the Credential Access tactic, the analysis identified OS Credential Dumping: /etc/passwd and /etc/shadow (T1003.008) with high confidence (90%), with evidence including root privileges enables dumping credentials from system files, and full control over the device. Under the Lateral Movement tactic, the analysis identified Exploitation of Remote Services (T1210) with moderate to high confidence (85%), with evidence including pivoting attacks into connected networks, and router as attack launchpad for broader network infiltration. Under the Collection tactic, the analysis identified Network Sniffing (T1040) with high confidence (95%), with evidence including interception of network traffic, and full control over the device enables packet capture and Automated Collection (T1119) with moderate to high confidence (80%), supported by evidence indicating modify router configurations to exfiltrate data automatically. Under the Command and Control tactic, the analysis identified Proxy: External Proxy (T1090.004) with high confidence (90%), with evidence including router configuration manipulation to route traffic via attacker-controlled proxy, and pivoting attacks into connected networks and Protocol Tunneling (T1572) with moderate to high confidence (85%), supported by evidence indicating intercept network traffic via compromised router (e.g., DNS/HTTP tunneling). Under the Exfiltration tactic, the analysis identified Exfiltration Over Alternative Protocol: Exfiltration Over Unencrypted/Obfuscated Non-C2 Protocol (T1048.003) with high confidence (90%), with evidence including customers data leaks (implied via traffic interception), and modify configurations to exfiltrate data via DNS/HTTP/etc.. Under the Impact tactic, the analysis identified Endpoint Denial of Service: Network (T1499.004) with moderate to high confidence (80%), supported by evidence indicating full control over the device enables disrupting network connectivity and Data Destruction (T1485) with moderate to high confidence (75%), supported by evidence indicating modify router configurations could include wiping settings/firmware. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.