PT-2020-15831 · Google/Apple · Gaen

Dirk-Willem Van Gulik · Published 2020-09-29 · Updated 2020-10-22 · CVE-2020-24721

Positive Technologies (AI Summary)

CVSS v3.1

5.7

Medium

Base vector

AV:P/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions GAEN (Google/Apple Exposure Notifications) protocol through 2020-09-29

Description The issue allows a user to be coerced into proving or disproving an exposure notification due to the persistent state of a private framework in COVID-19 applications on Android and iOS.

Recommendations For GAEN protocol through 2020-09-29, consider restricting access to the private framework to minimize the risk of coercion or data leakage until a fix is available.

Exploit

Fix

Related Identifiers

CVE-2020-24721

Affected Products

Gaen

References · 7

• 🔥 https://github.com/minvws/nl-covid19-notification-app-coordination/blob/master/CVEs/CVE-2020-24721.txt · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-24721 · Security Note
• https://blog.google/inside-google/company-announcements/update-exposure-notifications · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-24721 · Vendor Advisory
• https://t.me/defcon_news/58141 · Telegram Post
• https://seclists.org/fulldisclosure/2020/Sep/53 · Note
• http://packetstormsecurity.com/files/159419/Corona-Exposure-Notifications-API-Data-Leakage.html · Note