CVE-2020-8861

D-Link DAP-1330 HNAP Incorrect Implementation of Authentication Algorithm Authentication Bypass Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DAP-1330 1.10B01 BETA Wi-Fi range extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of cookies. An attacker can leverage this vulnerability to execute arbitrary code on the router. Was ZDI-CAN-9554.

Esta vulnerabilidad permite a atacantes adyacentes a la red omitir la autenticación en las instalaciones afectadas de los extensores de alcance Wi-Fi D-Link DAP-1330 versión 1.10B01 BETA. No es requerida una autenticación para explotar esta vulnerabilidad. El fallo específico se presenta en el manejo de peticiones de inicio de sesión de HNAP. El problema resulta de la falta de un manejo apropiado de las cookies. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código arbitrario en el enrutador. Fue ZDI-CAN-9554.

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DAP-1330 Wi-Fi range extenders. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of cookies. An attacker can leverage this vulnerability to execute arbitrary code on the router.

*Credits: chung96vn - Security Researcher of VinCSS (Member of Vingroup)

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-02-11 CVE Reserved
2020-02-21 CVE Published
2024-02-29 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication
CWE-303: Incorrect Implementation of Authentication Algorithm

CAPEC

References (2)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-20-265	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10155	2020-02-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Dlink Search vendor "Dlink"	Dap-1330 Firmware Search vendor "Dlink" for product "Dap-1330 Firmware"	< 1.10b01 Search vendor "Dlink" for product "Dap-1330 Firmware" and version " < 1.10b01"	-	Affected	in	Dlink Search vendor "Dlink"	Dap-1330 Search vendor "Dlink" for product "Dap-1330"	-	-	Safe
Dlink Search vendor "Dlink"	Dap-1330 Firmware Search vendor "Dlink" for product "Dap-1330 Firmware"	1.10b01 Search vendor "Dlink" for product "Dap-1330 Firmware" and version "1.10b01"	beta	Affected	in	Dlink Search vendor "Dlink"	Dap-1330 Search vendor "Dlink" for product "Dap-1330"	-	-	Safe