Description
D-Link DIR-2640 HNAP LoginPassword Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2640 routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the web management interface, which listens on TCP port 80 by default. A specially crafted login request can cause authentication to succeed without providing proper credentials. An attacker can leverage this vulnerability to bypass authentication on the system.
. Was ZDI-CAN-19549.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| D-Link | DIR-2640 | 1.11B02 (non-US, CA version) | — |
References
- ZDI-23-544
- vendor-provided URL vendor-advisory