This vulnerability exists in Tenda wireless routers (300Mbps Wireless Router F3 and N300 Easy Setup Router) due to the use of login credentials as the session ID through its web-based administrative interface. A remote attacker could exploit this vulnerability by intercepting network traffic and capturing the session ID during insecure transmission. Successful exploitation of this vulnerability could allow the attacker to hijack an authenticated session and compromise sensitive configuration information on the targeted device.
The severity of this vulnerability is classified as high, with a CVSS score of 8.8. This score indicates a significant risk to organizations, as attackers may leverage this vulnerability to gain unauthorized access to sensitive data and device configurations.
As a result, organizations should prioritize patching immediately. Given the nature of the vulnerability, the potential for exploitation is concerning, and timely remediation is essential to mitigate risks.
The vulnerability was published on January 9, 2026, and remains deferred at this time. Organizations using affected Tenda routers are advised to monitor for updates and apply any available patches promptly.
In addition to patching, organizations should consider reviewing their network security practices to ensure that sensitive information is not transmitted insecurely.
Regular security assessments and penetration testing can also assist in identifying similar vulnerabilities in other devices and systems.
Vulnerability Details
The vulnerability is classified under CWE-384, which pertains to session fixation. This occurs when a web application allows an attacker to hijack a valid session by using a known session ID or token.
The attack vector for this vulnerability is network-based, indicating that an attacker can exploit it remotely without needing physical access to the target device. The complexity required for an attack is low, meaning that even individuals with limited skills may successfully execute an exploit.
There are no privileges required for exploitation, and user interaction is not necessary to trigger the vulnerability. The impact on confidentiality is high, with low impacts on integrity and availability.
Technical Analysis
The root cause of this vulnerability lies in the decision to use login credentials as session IDs. During communication, if these credentials are transmitted insecurely, they become vulnerable to interception by attackers. This situation is exacerbated if the network does not utilize encryption protocols such as TLS.
Since the attack vector is a network, an attacker could leverage various methods, such as packet sniffing, to capture the session ID. Following capture, the attacker can impersonate the user, hijacking the session and gaining unauthorized access to the router's administrative interface.
In terms of detection, organizations should implement strict logging and monitoring of network traffic to identify unusual patterns or unauthorized access attempts. Such measures can help in detecting exploitation attempts in real-time.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to sensitive configuration information, which could lead to further compromise of network integrity. Since this vulnerability can be exploited remotely with low complexity, the blast radius is significant; attackers may gain control over multiple devices if they are connected to the same network.
The urgency for addressing this vulnerability is high due to its potential impact on confidentiality and the ease with which it can be exploited. Organizations must incorporate this vulnerability into their risk management strategies and prioritize remediation as part of their security posture.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch are affected. Organizations should refer to their vendor for specific guidance on patches and updates.
Mitigation & Remediation
Organizations should prioritize applying patches as soon as they are released by Tenda. Additionally, organizations can benefit from implementing robust security measures, such as enforcing strong encryption for all session-related communications.
It is advisable to conduct regular security assessments and penetration testing to identify vulnerabilities similar to this one. For effective security practices, organizations can refer to the comprehensive guide on penetration testing and enhance their overall security posture.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor network traffic for indicators of session hijacking. This includes analyzing logs for unusual access patterns and verifying the integrity of session tokens.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the critical importance of secure session management within web-based applications. Organizations must recognize the potential threat posed by insecure session handling and prioritize implementing best practices in session management.
This vulnerability serves as a reminder of the ongoing need for vigilance in securing network devices. Security teams should continuously assess their security frameworks and consider this incident as part of broader trends in network security.
For further insights into enhancing security measures, organizations can refer to the following resources: penetration testing methodology, vulnerability management program, and API penetration testing guide for comprehensive defensive strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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