Executive Summary

Informations
Name CVE-2020-13702 First vendor Publication 2020-06-11
Vendor Cve Last vendor Modification 2020-06-24

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Overall CVSS Score 10
Base Score 10 Environmental Score 10
impact SubScore 5.8 Temporal Score 10
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:N)
Cvss Base Score 6.4 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

** DISPUTED ** The Rolling Proximity Identifier used in the Apple/Google Exposure Notification API beta through 2020-05-29 enables attackers to circumvent Bluetooth Smart Privacy because there is a secondary temporary UID. An attacker with access to Beacon or IoT networks can seamlessly track individual device movement via a Bluetooth LE discovery mechanism. NOTE: this is disputed because the specification states "The advertiser address, Rolling Proximity Identifier, and Associated Encrypted Metadata shall be changed synchronously so that they cannot be linked" and therefore the purported tracking actually cannot occur. The original reporter says that synchronous changes only occur in one direction, not both directions.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13702

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-200 Information Exposure

Sources (Detail)

Source Url
MISC https://blog.google/documents/70/Exposure_Notification_-_Bluetooth_Specificat...
https://github.com/normanluhrmann/infosec/raw/master/exposure-notification-vu...
https://github.com/normanluhrmann/infosec/raw/master/exposure-notification-vu...
https://github.com/normanluhrmann/infosec/raw/master/exposure-notification-vu...

Alert History

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Date Informations
2020-06-24 21:23:11
  • Multiple Updates
2020-06-17 05:22:42
  • Multiple Updates
2020-06-16 17:22:50
  • Multiple Updates
2020-06-13 00:22:48
  • Multiple Updates
2020-06-12 00:22:44
  • First insertion