CVE-2021-20695

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Improper following of a certificate's chain of trust vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to gain root privileges via unspecified vectors.

Un seguimiento inapropiado de la vulnerabilidad de la cadena confiable de un certificado en DAP-1880AC versiones de firmware 1.21 y anteriores, permite a un atacante autenticado remoto alcanzar privilegios root por medio de vectores no especificados

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2021-04-26 CVE Published
2023-07-18 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (2)

URL	Tag	Source
https://jvn.jp/en/vu/JVNVU92898656/index.html	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.dlink-jp.com/support/release/jvnvu92898656_dap-1880ac.html	2022-05-03

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-1880ac Firmware Search vendor "Dlink" for product "Dap-1880ac Firmware"	<= 1.21 Search vendor "Dlink" for product "Dap-1880ac Firmware" and version " <= 1.21"	-	Affected	in	Dlink Search vendor "Dlink"	Dap-1880ac Search vendor "Dlink" for product "Dap-1880ac"	-	-	Safe