Vulnerability Description
Luca through 1.7.4 on Android allows remote attackers to obtain sensitive information about COVID-19 tracking because the QR code of a Public Location can be intentionally confused with the QR code of a Private Meeting.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Luca-App | Luca | <= 1.7.4 |
Related Weaknesses (CWE)
References
- https://github.com/mame82/misc/blob/master/luca_traceIds.mdThird Party Advisory
- https://luca-app.de/securityoverview/properties/objectives.htmlVendor Advisory
- https://twitter.com/patrick_hennig/status/1387738281757061125Third Party Advisory
- https://youtu.be/jWyDfEB0m08ExploitThird Party Advisory
- https://github.com/mame82/misc/blob/master/luca_traceIds.mdThird Party Advisory
- https://luca-app.de/securityoverview/properties/objectives.htmlVendor Advisory
- https://twitter.com/patrick_hennig/status/1387738281757061125Third Party Advisory
- https://youtu.be/jWyDfEB0m08ExploitThird Party Advisory
FAQ
What is CVE-2021-33839?
CVE-2021-33839 is a vulnerability with a CVSS score of 7.5 (HIGH). Luca through 1.7.4 on Android allows remote attackers to obtain sensitive information about COVID-19 tracking because the QR code of a Public Location can be intentionally confused with the QR code of...
How severe is CVE-2021-33839?
CVE-2021-33839 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-33839?
Check the references section above for vendor advisories and patch information. Affected products include: Luca-App Luca.