CVEvulnerability
CVE-2020-24721
5.7 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-09-30
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.7 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
- CVSS 2.0 ([email protected])
- 3.3 LOW — AV:L/AC:M/Au:N/C:P/I:P/A:N
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.
Affected configurations
• apple exposure notifications (<= 1.5)
• google exposure notifications (<= 1.5)
References
- http://packetstormsecurity.com/files/159419/Corona-Exposure-Notifications-API-Data-Leakage.html Third Party Advisory, VDB Entry
- https://blog.google/inside-google/company-announcements/update-exposure-notifications Vendor Advisory
- https://github.com/minvws/nl-covid19-notification-app-coordination/blob/master/CVEs/CVE-2020-24721.txt Third Party Advisory
- https://seclists.org/fulldisclosure/2020/Sep/53 Mailing List, Third Party Advisory
- http://packetstormsecurity.com/files/159419/Corona-Exposure-Notifications-API-Data-Leakage.html Third Party Advisory, VDB Entry
- https://blog.google/inside-google/company-announcements/update-exposure-notifications Vendor Advisory
- https://github.com/minvws/nl-covid19-notification-app-coordination/blob/master/CVEs/CVE-2020-24721.txt Third Party Advisory
- https://seclists.org/fulldisclosure/2020/Sep/53 Mailing List, Third Party Advisory