Filtered by vendor Exposure Notifications Project
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Filtered by product Exposure Notifications
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Total
1 CVE
CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
---|---|---|---|---|---|
CVE-2020-24722 | 1 Exposure Notifications Project | 1 Exposure Notifications | 2020-10-22 | 2.6 LOW | 5.9 MEDIUM |
** DISPUTED ** An issue was discovered in the GAEN (aka Google/Apple Exposure Notifications) protocol through 2020-10-05, as used in COVID-19 applications on Android and iOS. The encrypted metadata block with a TX value lacks a checksum, allowing bitflipping to amplify a contamination attack. This can cause metadata deanonymization and risk-score inflation. NOTE: the vendor's position is "We do not believe that TX power authentication would be a useful defense against relay attacks." |