CVE-2020-24721 Information

Description

An issue was discovered in the GAEN (aka Google/Apple Exposure Notifications) protocol through 2020-09-29 as used in COVID-19 applications on Android and iOS. It allows a user to be put in a position where he or she can be coerced into proving or disproving an exposure notification because of the persistent state of a private framework.

CVSS Vector

CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

Reference

http://packetstormsecurity.com/files/159419/Corona-Exposure-Notifications-API-Data-Leakage.html https://blog.google/inside-google/company-announcements/update-exposure-notifications https://github.com/minvws/nl-covid19-notification-app-coordination/blob/master/CVEs/CVE-2020-24721.txt https://seclists.org/fulldisclosure/2020/Sep/53

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.7