Description

The affected Ebyte device web management interface does not restrict the interface from being rendered within an external frame. An unauthenticated remote attacker could use a crafted webpage to mislead an authenticated administrator into initiating unintended configuration changes or disruptive actions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "5.4",
  "pubDate": "2026-08-28T00:18:12.830Z",
  "pubdate": "2026-08-28T00:18:12.830Z",
  "executiveSummary": "The Ebyte web management interface is susceptible to a Clickjacking vulnerability due to the absence of appropriate framing protection headers. This vulnerability arises because the web server does not restrict the rendering of its interface within external frames, allowing the application to be embedded in malicious third-party websites.\nThe impact of this flaw is significant; an unauthenticated remote attacker can trick an authenticated administrator into performing sensitive actions without their knowledge or consent. By leveraging the victim's active session, the attacker can force unintended configuration changes, modify network settings, or trigger disruptive actions within the administrative panel.\nThis vulnerability affects the Ebyte device's web management interface. Successful exploitation requires the administrator to be actively logged into the device while simultaneously visiting an attacker-controlled webpage. The risk implications are severe, as it facilitates unauthorized administrative state changes, potentially leading to a complete compromise of the device's functional integrity and security posture. Because the browser automatically includes session cookies in requests to the embedded frame, the administrator's authorization context is transparently used by the malicious site to execute the unintended operations.",
  "technicalDetails": "The vulnerability is a manifestation of improper UI redressing, commonly known as Clickjacking, within the Ebyte web management interface. The root cause is the failure of the web server to implement modern security headers, specifically the X-Frame-Options header or the Content-Security-Policy (CSP) frame-ancestors directive. By omitting these mechanisms, the application fails to instruct the web browser to block the rendering of the management portal inside <frame>, <iframe>, or <object> elements hosted on external domains.\nThe attack flow follows a structured pattern designed to exploit the browser's trust in active session tokens. An unauthenticated attacker first hosts a malicious webpage that contains a transparent overlay or a deceptive layout designed to hide the actual Ebyte management interface. This interface is embedded within a hidden or opaque <iframe> pointing to the target Ebyte device's local IP or hostname.\nWhen an authenticated administrator visits the attacker's site, the browser initiates requests to the Ebyte management interface. Because the administrator possesses an active session, the browser automatically attaches the necessary authentication cookies to these requests, effectively authorizing the attacker's commands. The attacker then uses CSS techniques to position invisible interface elements from the Ebyte dashboard directly underneath the user's cursor.\nThe step-by-step exploitation process is as follows: 1) The attacker identifies the URI structure for sensitive administrative actions, such as 'save_config' or 'factory_reset'. 2) The attacker lures an authenticated administrator to a controlled site. 3) The site loads the Ebyte dashboard into an invisible <iframe> layered beneath an innocuous button or interactive element presented to the user. 4) The user interacts with the page, believing they are clicking an element on the attacker's site, while the click is actually intercepted by the underlying Ebyte dashboard control. 5) The browser executes the action within the context of the administrator’s session.\nThis allows for post-exploitation activities such as disabling security firewalls, modifying user credentials, or reconfiguring routing tables. Since the entire exploitation occurs client-side and relies on the user's existing session, the Ebyte device logs will reflect that the administrator performed these actions legitimately, complicating incident response and forensic analysis. The vulnerability remains persistent as long as the web server continues to transmit the interface without framing restrictions."
}