CVE-2020-13702
6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
10 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
0.004 Low
EPSS
Percentile
72.4%
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.
Affected configurations
References
blog.google/documents/70/Exposure_Notification_-_Bluetooth_Specification_v1.2.2.pdf
github.com/google/exposure-notifications-internals/commit/8f751a666697
github.com/google/exposure-notifications-internals/commit/8f751a666697c3cae0a56ae3464c2c6cbe31b69e
github.com/normanluhrmann/infosec/raw/master/exposure-notification-vulnerability-20200611.pdf
github.com/normanluhrmann/infosec/raw/master/exposure-notification-vulnerability-20200616-2.pdf
github.com/normanluhrmann/infosec/raw/master/exposure-notification-vulnerability-20200616.pdf
Related
6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:P/A:N
10 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
0.004 Low
EPSS
Percentile
72.4%