The authenticated remote command execution (RCE) vulnerability exists in the Parental Control page on TP-Link Archer C7(EU) V2 and TL-WR841N/ND(MS) V9. This issue affects Archer C7(EU) V2: before 241108 and TL-WR841N/ND(MS) V9: before 241108. Both products have reached the status of EOL (end-of-life). It's recommended to purchase a new product to ensure better performance and security. If replacement is not an option in the short term, please use the second reference link to download and install the patch(es).
With a CVSS score of 8.6, this vulnerability is classified as high severity, indicating a significant risk to organizations. The potential for attackers to exploit this vulnerability exists, given the low complexity of the attack and high privileges required for exploitation. Organizations should prioritize patching immediately to mitigate the associated risks.
The vulnerability allows attackers to execute arbitrary commands on affected devices, leading to unauthorized access and potential further exploitation. The risk to organizations includes compromised network integrity and the possibility of cascading failures in connected systems.
Given the nature of this vulnerability and the fact that the affected products have reached EOL, organizations should consider upgrading to supported hardware that offers improved security features.
Vulnerability Details
The vulnerability allows remote command execution due to insufficient validation in the Parental Control interface. High privileges are required to exploit this vulnerability, and user interaction is not necessary. The impacts on confidentiality, integrity, and availability are all high, making this a critical issue for organizations still using these outdated products.
Technical Analysis
Root cause analysis indicates that the vulnerability stems from inadequate input sanitization on the Parental Control page. Attackers may leverage this flaw to execute arbitrary commands via crafted requests, leading to unauthorized access to the device's system.
The attack vector is network-based, with low attack complexity, meaning that an attacker with high privileges can exploit this vulnerability without needing user interaction. The confidentiality, integrity, and availability impacts are all rated as high, reflecting the potential severity of an exploitation.
Risk & Impact Analysis
Real-world deployment risk is significant due to the prevalence of these devices in consumer networks. The blast radius potential is extensive, as compromised routers can lead to further network breaches. Organizations should prioritize mitigation efforts based on the high CVSS score, and actively consider replacing EOL devices to minimize risk.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The affected versions include Archer C7(EU) V2 and TL-WR841N/ND(MS) V9, specifically all firmware versions prior to 241108. If version information is missing, it is stated as 'All versions prior to vendor patch'.
Mitigation & Remediation
Organizations should apply the mitigations per vendor instructions. For devices that have reached EOL, it is highly recommended to replace them with supported alternatives. Patching the firmware to the latest version is crucial to securing the devices. For further details, refer to TP-Link's guidance on firmware updates and security patches. Organizations can validate the effectiveness of their remediation through penetration testing to identify any remaining vulnerabilities.
Detection Guidance
Organizations should monitor for unusual log entries related to unauthorized command execution. Behavioral anomalies in device performance may also indicate a compromise. Network signatures associated with exploitation attempts should be captured to enhance detection capabilities. Additionally, monitoring system changes on affected devices can help identify any unauthorized modifications.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the ongoing risks associated with outdated devices. Organizations are encouraged to adopt a proactive approach to device management, ensuring that all hardware is regularly assessed and updated. This vulnerability exemplifies a trend where legacy systems become prime targets for attackers. Security teams should prioritize the adoption of best practices to secure network devices, as outlined in the penetration testing methodology and actively replace devices that reach EOL.
Organizations should also consider implementing a vulnerability management program to continuously assess security posture and ensure that all devices are monitored for threats.
In conclusion, the TP-Link Archer C7 and TL-WR841N/ND(MS) vulnerability underscores the importance of maintaining an up-to-date inventory of network devices and the need for organizations to remain vigilant in their security efforts.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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