CVE-2020-8863

Severity CVSS v4.0:

Pending analysis

Type:

CWE-287 Authentication Issues

Publication date:

23/03/2020

Last modified:

23/04/2021

Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04. 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 implementation of the authentication algorithm. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the router. Was ZDI-CAN-9470.

Impact

Vector 3.x

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.80

Severity 3.x

HIGH

Vector 2.0

AV:A/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 8.30 HIGH
Vector: AV:A/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

8.30

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:dlink:dir-878_firmware::::::::		1.20b03 (including)
cpe:2.3:h:dlink:dir-878:-:::::::*
cpe:2.3:o:dlink:dir-882_firmware::::::::		1.10b04 (including)
cpe:2.3:h:dlink:dir-882:-:::::::*
cpe:2.3:o:dlink:dir-867_firmware::::::::		1.10b04 (including)
cpe:2.3:h:dlink:dir-867:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2020-8863

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools