A security flaw has been discovered in UTT 520W 1.7.7-180627. This vulnerability allows a buffer overflow through a manipulation of the argument ssid in the function strcpy of the file /goform/ConfigWirelessBase. The attack is possible to be carried out remotely, making it a significant threat. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
With a CVSS score of 7.4, this vulnerability is classified as high severity. Organizations need to understand the real-world implications of this flaw, as it can lead to unauthorized access and manipulation of sensitive data.
Organizations should prioritize patching immediately to mitigate risks associated with this vulnerability. Failure to address this could lead to severe consequences, especially considering the potential for remote exploitation.
The urgency for defenders is amplified by the fact that the exploit is publicly available, increasing the likelihood of attacks targeting vulnerable installations.
Vulnerability Details
A security flaw has been discovered in UTT 520W 1.7.7-180627. This impacts the function strcpy of the file /goform/ConfigWirelessBase. Performing a manipulation of the argument ssid results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
The vulnerability is categorized under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-120 (Buffer Copy without Checking Size of Input).
The CVSS score of this vulnerability is 7.4, indicating a high severity level. This is due to its potential for exploitation over the network, low attack complexity, and high impact on confidentiality, integrity, and availability.
Technical Analysis
The root cause of this vulnerability is the improper handling of the ssid argument in the strcpy function, which allows for a buffer overflow. The attack vector is network-based, meaning that an attacker does not need physical access to the system to exploit it. The attack complexity is low, and the privileges required to execute the attack are also low, making this a significant risk.
User interaction is not required for exploitation, which increases the danger posed by this vulnerability. The potential impacts on confidentiality, integrity, and availability are all rated high, indicating that successful exploitation could lead to serious breaches of security.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to sensitive data and potential manipulation of system functions. Given the high severity of the CVSS score, organizations should assess their exposure to this vulnerability and take appropriate action.
The potential blast radius for this vulnerability is significant, especially for organizations that rely heavily on UTT 520W firmware. The urgency for patching is critical, as the exploit is already available in the public domain.
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected product is the UTT 520W firmware version 1.7.7-180627. All versions prior to the vendor patch are vulnerable.
Mitigation & Remediation
Organizations should prioritize patching immediately. Ensure that all installations of UTT 520W firmware are updated to the latest version. If a patch is not available, consider implementing network controls to restrict access to vulnerable systems.
For organizations looking to enhance their security posture, consider engaging in penetration testing to identify and remediate similar vulnerabilities.
Detection Guidance
Organizations should monitor logs for unusual access patterns and any attempts to manipulate the ssid argument in network requests to /goform/ConfigWirelessBase.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the need for organizations to maintain up-to-date firmware to prevent exploitation. This incident underscores a broader trend of buffer overflow vulnerabilities being prevalent in network devices.
Security teams should take note of this vulnerability as a reminder of the importance of secure coding practices, particularly around memory management. A proactive approach in vulnerability management can mitigate risks associated with similar vulnerabilities in the future.
For further reading on effective vulnerability management programs, refer to our guide on vulnerability management program design. Additionally, understanding penetration testing methodologies can enhance your organization’s security measures. Check out our article on penetration testing methodology for best practices.
Finally, for organizations leveraging cloud technologies, understanding the latest trends in cloud security is crucial. Our resource on cloud security assessment can provide valuable insights.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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