Unnecessary fields in the OpenTrace/BlueTrace protocol in COVIDSafe through v1.0.17 allow a remote attacker to identify a device model by observing cleartext payload data. This allows re-identification of devices, especially less common phone models or those in low-density situations.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12859
Reference (s):
- https://docs.google.com/document/d/1u5a5ersKBH6eG362atALrzuXo3zuZ70qrGomWVEC27U/edit?usp=sharing
- https://www.health.gov.au/resources/apps-and-tools/covidsafe-app