D-Link DIR-2150 HNAP Incorrect Implementation of Authentication Algorithm Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2150 routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the SOAP API interface, which listens on TCP port 80 by default. A crafted authentication header can cause authentication to succeed without providing proper credentials. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-20910.
Weakness
The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Dir-2150_firmware | Dlink | * | 1.06 (excluding) |