CVE-2025-25056 Overview
CVE-2025-25056 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the Inaba Denki Sangyo Wi-Fi AP UNIT AC-WPS-11ac series access points. The flaw allows an attacker to trigger unintended administrative operations on the device when an authenticated user visits a malicious web page. Exploitation requires the target to be logged into the device management interface and to interact with attacker-controlled content. The weakness is classified under CWE-352: Cross-Site Request Forgery. The current EPSS probability is 0.161%, indicating low near-term exploitation likelihood in the wild.
Critical Impact
An authenticated administrator visiting a malicious page can be forced to execute unauthorized configuration changes on the affected Wi-Fi access point.
Affected Products
- Inaba Denki Sangyo Wi-Fi AP UNIT AC-WPS-11ac series
- Related AC-WPS-11ac firmware variants documented in the vendor advisory
- See vendor advisory for the complete list of affected model numbers
Discovery Timeline
- 2025-04-09 - CVE-2025-25056 published to the National Vulnerability Database
- 2026-06-17 - Last updated in the NVD database
Technical Details for CVE-2025-25056
Vulnerability Analysis
The AC-WPS-11ac series web management interface does not validate the origin or authenticity of state-changing HTTP requests. When an administrator authenticates to the device, the browser retains a valid session context. An attacker who lures the authenticated user to a malicious page can craft HTML or JavaScript that issues cross-origin requests to the device management endpoints. The browser attaches the active session credentials automatically, and the device processes the forged request as legitimate. This allows the attacker to trigger configuration changes without the user's knowledge.
Root Cause
The root cause is the absence of anti-CSRF protections such as unpredictable per-request tokens, SameSite cookie attributes, or strict Origin and Referer header validation on sensitive endpoints. Without these controls, the web management interface cannot distinguish between a request initiated intentionally by the administrator and one forged by a third-party site.
Attack Vector
Exploitation is network-based and requires user interaction. The attacker must convince an authenticated administrator to visit a malicious URL or open crafted HTML content while a valid session to the device exists. The forged request executes with the privileges of the logged-in user. The vulnerability does not directly expose confidentiality, but permits limited integrity impact through unauthorized state changes on the device.
No public proof-of-concept code has been released. Refer to the JVN Security Advisory and the Inaba Security Document for vendor-provided technical detail.
Detection Methods for CVE-2025-25056
Indicators of Compromise
- Unexpected configuration changes on AC-WPS-11ac devices, including changes to Wi-Fi settings, administrator credentials, or firmware update parameters
- HTTP requests to the device management interface with Referer headers pointing to external or unrelated domains
- Administrator sessions coinciding with browsing activity to untrusted external sites
Detection Strategies
- Inspect web server or reverse proxy logs on the management network for cross-origin POST requests targeting the device administrative endpoints
- Correlate administrator authentication events with subsequent configuration modification events to identify anomalous request patterns
- Alert on requests to the management interface where Origin or Referer headers do not match the device's own hostname
Monitoring Recommendations
- Restrict administrative access to a dedicated management VLAN and monitor traffic to that segment
- Enable and centralize logging of device configuration changes for later correlation
- Track browser telemetry from administrative workstations for visits to unknown domains during active management sessions
How to Mitigate CVE-2025-25056
Immediate Actions Required
- Apply the firmware update published by Inaba Denki Sangyo as referenced in the vendor advisory
- Log out of the device management interface immediately after each administrative session
- Restrict management interface access to trusted internal IP addresses only
- Use a dedicated browser or browser profile for administrative access to network devices
Patch Information
Inaba Denki Sangyo published a security notice on 2025-04-04 describing the affected AC-WPS-11ac series models and remediation guidance. Administrators should consult the Inaba Security Document and the coordinated JVN Security Advisory for firmware versions and update instructions specific to their model.
Workarounds
- Place the device management interface behind an authenticated reverse proxy that enforces Origin header validation
- Disable remote management from untrusted networks and require VPN access for administrative operations
- Instruct administrators to avoid browsing untrusted sites while logged into the device
- Apply browser policies enforcing SameSite=Strict cookies where possible for the management interface
# Example firewall rule restricting management interface to a trusted subnet
iptables -A INPUT -p tcp --dport 443 -s 10.0.10.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
