CVE-2021-33839

CVSS V2 Medium 5 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2021-33839
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-06-04T00:15:07
  • Last Modified Date
  • 2021-06-07T18:08:25
Weakness Enumerations
CWE URL
CWE-200 http://cwe.mitre.org/data/definitions/200.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:luca-app:luca:*:*:*:*:*:android:*:* 1 OR 1.7.4
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/mame82/misc/blob/master/luca_traceIds.md Third Party Advisory
https://twitter.com/patrick_hennig/status/1387738281757061125 Third Party Advisory
https://luca-app.de/securityoverview/properties/objectives.html Vendor Advisory
https://youtu.be/jWyDfEB0m08 Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-33839
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33839
History
Created Old Value New Value Data Type Notes
2022-05-10 07:12:27 Added to TrackCVE
2022-12-05 03:32:38 2021-06-04T00:15Z 2021-06-04T00:15:07 CVE Published Date updated
2022-12-05 03:32:38 2021-06-07T18:08:25 CVE Modified Date updated
2022-12-05 03:32:38 Analyzed Vulnerability Status updated