CVE-2021-33838

Public Exploit

Description

Luca through 1.7.4 on Android allows remote attackers to obtain sensitive information about COVID-19 tracking because requests related to Check-In State occur shortly after requests for Phone Number Registration.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.13% Top 20%
Vendor Advisory luca-app.de
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/mame82/misc/blob/master/luca_traceIds.md third party advisory
https://luca-app.de/securityoverview/properties/objectives.html vendor advisory
https://www.youtube.com/playlist?list=PLKuX6iczGb3kuDsm2RFgbmRkTugkR9-UE third party advisory exploit
https://www.ccc.de/de/updates/2021/luca-app-ccc-fordert-bundesnotbremse third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-33838?
CVE-2021-33838 has been scored as a high severity vulnerability.
How to fix CVE-2021-33838?
To fix CVE-2021-33838, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-33838 being actively exploited in the wild?
It is possible that CVE-2021-33838 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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