A vulnerability classified as critical has been found in Tenda AC15 firmware version 15.13.07.13. This vulnerability allows stack-based buffer overflow due to manipulation of the argument mac in the function formSetDevNetName within the file /goform/SetDevNetName. The attack can be initiated remotely, making it particularly dangerous for organizations that utilize this firmware. With a CVSS score of 8.7, this high-severity vulnerability poses significant risks, especially as the exploit has been disclosed to the public.
Risk to organizations includes potential unauthorized access, data loss, and service disruption. Attackers may leverage this vulnerability to execute arbitrary code, which can lead to a complete compromise of the affected device. Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability.
The urgency for defenders to act is underscored by the high exploitability of this vulnerability. Remediation efforts should focus on updating to the latest firmware version that addresses this vulnerability, as failure to do so could result in severe consequences for network security.
Given the critical nature of this vulnerability, organizations must take immediate action to assess their exposure and apply necessary updates to safeguard against potential exploitation.
Vulnerability Details
The vulnerability identified in Tenda AC15 firmware affects the function formSetDevNetName, specifically the handling of the mac argument. This mismanagement can lead to a stack-based buffer overflow, enabling attackers to execute arbitrary code remotely. The vulnerability has been assigned a CVSS score of 8.7, indicating its high severity due to the potential impacts on confidentiality, integrity, and availability.
The vulnerability was published on January 19, 2025, and has been classified under multiple CWEs, including CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), CWE-121 (Stack-based Buffer Overflow), and CWE-787 (Out-of-bounds Write).
Technical Analysis
The root cause of this vulnerability is the improper handling of input data in the formSetDevNetName function. The attack vector is classified as network-based, and the attack complexity is low, requiring only low privileges to exploit. No user interaction is necessary for the attack to succeed.
The impacts of exploitation could include high confidentiality, integrity, and availability losses, which are critical for organizations relying on affected devices. It requires low privileges, making it accessible for attackers with minimal access.
Risk & Impact Analysis
The potential blast radius for this vulnerability is significant, as it affects any device running the vulnerable firmware. Organizations utilizing the Tenda AC15 in various environments may face severe repercussions, including data breaches and loss of service.
Given the high CVSS score and the public disclosure of the exploit, organizations should address this vulnerability in their priority patch cycle. The EPSS score of 0.104 indicates a 93rd percentile risk, emphasizing the urgency for immediate action.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch. Specifically, Tenda AC15 firmware version 15.13.07.13 is vulnerable.
Mitigation & Remediation
Organizations should prioritize patching immediately. It is essential to upgrade to the latest firmware version provided by Tenda that addresses this vulnerability. Additionally, implementing network controls to restrict access to affected devices can help mitigate potential threats.
For continuous security testing and vulnerability management, organizations can benefit from conducting regular assessments. Effective security testing practices can help identify similar weaknesses in their network.
Detection Guidance
Organizations should monitor logs for any unusual activity related to the Tenda AC15 device. Key indicators include unexpected administrative actions or changes to device configurations. Behavioral anomalies, such as unauthorized access attempts, should also be flagged for further investigation.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the necessity for organizations to adopt a proactive approach to security. It represents a pattern of vulnerabilities found in consumer-grade networking devices, which often go overlooked.
Security teams must remain vigilant and continuously assess their environments for similar vulnerabilities. This incident underscores the importance of maintaining an effective vulnerability management program to ensure that all components are secured against known threats.
For more insights on vulnerability management, organizations can refer to the following resources: vulnerability management program and penetration testing methodology best practices to enhance security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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