3.3
LOW
CVE-2021-31815
Google/Apple Exposure Notifications Android Location History Exposure
Description

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."

INFO

Published Date :

April 28, 2021, 2:15 a.m.

Last Modified :

May 7, 2021, 6:28 p.m.

Remotely Exploitable :

No

Impact Score :

1.4

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-31815 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Google google\/apple_exposure_notifications
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-31815.

URL Resource
https://blog.appcensus.io/2021/04/27/why-google-should-stop-logging-contact-tracing-data/ Exploit Third Party Advisory
https://themarkup.org/privacy/2021/04/27/google-promised-its-contact-tracing-app-was-completely-private-but-it-wasnt Exploit Press/Media Coverage Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-31815 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-31815 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    May. 07, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
    Changed Reference Type https://blog.appcensus.io/2021/04/27/why-google-should-stop-logging-contact-tracing-data/ No Types Assigned https://blog.appcensus.io/2021/04/27/why-google-should-stop-logging-contact-tracing-data/ Exploit, Third Party Advisory
    Changed Reference Type https://themarkup.org/privacy/2021/04/27/google-promised-its-contact-tracing-app-was-completely-private-but-it-wasnt No Types Assigned https://themarkup.org/privacy/2021/04/27/google-promised-its-contact-tracing-app-was-completely-private-but-it-wasnt Exploit, Press/Media Coverage, Third Party Advisory
    Added CWE NIST CWE-319
    Added CPE Configuration OR *cpe:2.3:a:google:google\/apple_exposure_notifications:*:*:*:*:*:android:*:* versions up to (including) 2021-04-27
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-31815 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.10669

percentile

CVSS31 - Vulnerability Scoring System
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