CVE-2020-24722Not scoredCWE-294

CVE-2020-24722: Exposure Notifications Project vulnerability

Exposure Notifications Project · Exposure Notifications

Vendor fix available · Affected: Exposure Notifications Project · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

2.5%probability of exploitation in the next 30 days

84th percentile

050100

Higher than 84% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

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.

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Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Authentication Bypass by Capture-replay · Authentication
Published: October 2020
Band: Possible (1 to 10%), October 2020

CoverageNo articles yet

No CyberSIXT article names CVE-2020-24722 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.