Dasan GPON Routers Authentication Bypass Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 31/03/2022. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| Gigabit Passive Optical Network (GPON) Routers | Versions not published yet (product named by CISA KEV) | |
An issue was discovered on Dasan GPON home routers. It is possible to bypass authentication simply by appending "?images" to any URL of the device that requires authentication, as demonstrated by the /menu.html?images/ or /GponForm/diag_FORM?images/ URI. One can then manage the device.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free