CVE-2020-8987: avast antitrack Improper Certificate Validation
Vulnerability summary
CVE-2020-8987 is a high (CVSS 7.4) Improper Certificate Validation vulnerability in avast antitrack. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 42% of scored vulnerabilities.
Timeline
- 09-03-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.)
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
0.51%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
0.00 pp
From 0.51% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Avast2 products
- antitrack< 1.5.1.172
- avg_antitrack< 2.0.0.178
1 vendor · 2 products
References
2 links- www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avastX Refsource CONFIRMVendor Advisory