CVE-2020-8987

Severity Score

7.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS sites but does not validate certificates, and thus a man-in-the-middle can host a malicious website using a self-signed certificate. No special action necessary by the victim using AntiTrack with "Allow filtering of HTTPS traffic for tracking detection" enabled. (This is the default configuration.)

Avast AntiTrack versiones anteriores a 1.5.1.172 y AVG Antitrack versiones anteriores a 2.0.0.178, envían tráfico hacia los sitios HTTPS pero no se comprueban los certificados, por lo que un ataque de tipo man-in-the-middle puede alojar un sitio web malicioso usando un certificado autofirmado. Una víctima no necesita ninguna acción especial usando AntiTrack con "Allow filtering of HTTPS traffic for tracking detection" habilitado. (Esta es la configuración predeterminada.)

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-02-13 CVE Reserved
2020-03-09 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (2)

URL	Tag	Source
https://www.davideade.com/2020/03/avast-antitrack.html	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast	2020-03-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Avast Search vendor "Avast"		Antitrack Search vendor "Avast" for product "Antitrack"				< 1.5.1.172 Search vendor "Avast" for product "Antitrack" and version " < 1.5.1.172"		-		Affected
Avast Search vendor "Avast"		Avg Antitrack Search vendor "Avast" for product "Avg Antitrack"				< 2.0.0.178 Search vendor "Avast" for product "Avg Antitrack" and version " < 2.0.0.178"		-		Affected