Overview
An authentication bypass vulnerability, identified as CVE-2025-59371, has been discovered in the IFTTT integration feature of certain ASUS routers. This vulnerability could allow a remote, authenticated attacker to potentially gain unauthorized access to the device. It is crucial to assess your router model and apply the necessary firmware update to mitigate this risk. Importantly, Wi-Fi 7 series models are not affected by this vulnerability.
Technical Details
CVE-2025-59371 specifically targets the IFTTT integration functionality within affected ASUS routers. The precise mechanism of the authentication bypass is not fully detailed in the available advisory but likely involves flaws in how authentication tokens or session management are handled within the IFTTT communication protocol. A successful exploit would allow an attacker who has already authenticated in some way (perhaps with limited privileges) to escalate their access and potentially gain administrative control over the router.
CVSS Analysis
Currently, both the Severity and CVSS score for CVE-2025-59371 are listed as N/A. This may indicate that the vulnerability is still being assessed, or that insufficient information is available to accurately determine its severity. It’s recommended to regularly check the ASUS Security Advisory for updates on the CVSS score and severity assessment.
Possible Impact
If successfully exploited, CVE-2025-59371 could have severe consequences, including:
- Unauthorized Access: An attacker could gain complete control over the router’s settings.
- Data Theft: Sensitive information passing through the router could be intercepted.
- Malware Infection: The router could be used as a gateway to infect connected devices with malware.
- Network Disruption: The router’s configuration could be modified to disrupt network services.
- Botnet Recruitment: The router could be recruited into a botnet.
Mitigation or Patch Steps
The primary mitigation step is to apply the latest firmware update provided by ASUS. Refer to the ‘Security Update for ASUS Router Firmware’ section on the ASUS Security Advisory for specific instructions for your router model.
Here are general steps to update your ASUS router firmware:
- Log in to your ASUS router’s web interface.
- Navigate to the firmware update section (usually under “Administration” or “System”).
- Check for available updates and install the latest version.
- Reboot the router after the update is complete.
Important: Verify that the downloaded firmware is specifically for your router model. Avoid using firmware from unofficial sources.
If a firmware update is not yet available for your model, consider temporarily disabling the IFTTT integration feature in your router’s settings as a precautionary measure.
