CVE-2021-33839

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-33839
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
https://github.com/mame82/misc/blob/master/luca_traceIds.md Third Party Advisory
https://luca-app.de/securityoverview/properties/objectives.html Vendor Advisory
https://twitter.com/patrick_hennig/status/1387738281757061125 Third Party Advisory
https://youtu.be/jWyDfEB0m08 Exploit Third Party Advisory
https://github.com/mame82/misc/blob/master/luca_traceIds.md Third Party Advisory
https://luca-app.de/securityoverview/properties/objectives.html Vendor Advisory
https://twitter.com/patrick_hennig/status/1387738281757061125 Third Party Advisory
https://youtu.be/jWyDfEB0m08 Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:luca-app:luca:*:*:*:*:*:android:*:*
History

21 Nov 2024, 06:09

Type Values Removed Values Added
References () https://github.com/mame82/misc/blob/master/luca_traceIds.md - Third Party Advisory () https://github.com/mame82/misc/blob/master/luca_traceIds.md - Third Party Advisory
References () https://luca-app.de/securityoverview/properties/objectives.html - Vendor Advisory () https://luca-app.de/securityoverview/properties/objectives.html - Vendor Advisory
References () https://twitter.com/patrick_hennig/status/1387738281757061125 - Third Party Advisory () https://twitter.com/patrick_hennig/status/1387738281757061125 - Third Party Advisory
References () https://youtu.be/jWyDfEB0m08 - Exploit, Third Party Advisory () https://youtu.be/jWyDfEB0m08 - Exploit, Third Party Advisory

07 Jun 2021, 18:08

Type Values Removed Values Added
CPE cpe:2.3:a:luca-app:luca:*:*:*:*:*:android:*:*
CWE CWE-200
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5
References (MISC) https://twitter.com/patrick_hennig/status/1387738281757061125 - (MISC) https://twitter.com/patrick_hennig/status/1387738281757061125 - Third Party Advisory
References (MISC) https://github.com/mame82/misc/blob/master/luca_traceIds.md - (MISC) https://github.com/mame82/misc/blob/master/luca_traceIds.md - Third Party Advisory
References (MISC) https://youtu.be/jWyDfEB0m08 - (MISC) https://youtu.be/jWyDfEB0m08 - Exploit, Third Party Advisory
References (MISC) https://luca-app.de/securityoverview/properties/objectives.html - (MISC) https://luca-app.de/securityoverview/properties/objectives.html - Vendor Advisory

04 Jun 2021, 00:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-06-04 00:15

Updated : 2024-11-21 06:09

NVD link : CVE-2021-33839

Mitre link : CVE-2021-33839

CVE.ORG link : CVE-2021-33839

JSON object : View

Products Affected

luca-app

  • luca
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor