Vulnerability in Google Google\/apple Exposure Notifications
CVE-2021-31815
GAEN (aka Google/Apple Exposure Notifications) through 2021-04-27 on Android allows attackers to obtain sensitive information, such as a user's location history, in-person social graph, and (sometimes) COVID-19 infection status, because Rolling Proximity Identifiers and MAC addresses are written to the Android system log, and many Android devices have applications (preinstalled by the hardware manufacturer or network operator) that read system log data and send it to third parties. NOTE: a news outlet (The Markup) states that they received a vendor response indicating that fix deployment "began several weeks ago and will be complete in the coming days."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.001 (2.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
Weakness classification (CWE)
References
- themarkup.org/privacy/2021/04/27/google-promised-its-contact-tracing-app-was-co… (Exploit, Third Party Advisory, Press/Media Coverage)
- blog.appcensus.io/2021/04/27/why-google-should-stop-logging-contact-tracing-dat… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-31815?
- CVE-2021-31815 is a low-severity vulnerability in Google Google\/apple Exposure Notifications, classified under Cleartext Transmission of Sensitive Information. CVSS score: 3.3/10. Published 2021-04-28.
- How severe is CVE-2021-31815?
- Low severity. CVSS v3 base score is 3.3 out of 10.