CVE-2021-31815

CVSS V2 Low 2.1 CVSS V3 Low 3.3
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."
Overview
  • CVE ID
  • CVE-2021-31815
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-04-28T02:15:07
  • Last Modified Date
  • 2021-05-07T18:28:32
Weakness Enumerations
CWE URL
CWE-319 http://cwe.mitre.org/data/definitions/319.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:google:google\/apple_exposure_notifications:*:*:*:*:*:android:*:* 1 OR 2021-04-27
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:P/I:N/A:N
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 2.1
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 3.3
  • Base Severity
  • LOW
  • Exploitability Score
  • 1.8
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
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
https://blog.appcensus.io/2021/04/27/why-google-should-stop-logging-contact-tracing-data/ Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-31815
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31815
History
Created Old Value New Value Data Type Notes
2022-05-10 16:16:42 Added to TrackCVE
2022-12-05 01:09:16 2021-04-28T02:15Z 2021-04-28T02:15:07 CVE Published Date updated
2022-12-05 01:09:16 2021-05-07T18:28:32 CVE Modified Date updated
2022-12-05 01:09:16 Analyzed Vulnerability Status updated