PT-2021-20342 · Luca · Luca

Lasse Wolter · Published 2021-06-03 · Updated 2022-07-12 · CVE-2021-33840

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Luca versions 1.1.14 and earlier

Description: The issue allows remote attackers to cause a denial of service by inserting many fake records related to COVID-19. This is because Phone Number data lacks a digital signature.

Recommendations: For versions 1.1.14 and earlier, consider implementing digital signatures for Phone Number data to prevent the insertion of fake records. As a temporary workaround, restrict access to the server to minimize the risk of exploitation.

Fix

Insufficient Verification of Data Authenticity

Weakness Enumeration

CWE-345

Related Identifiers

CVE-2021-33840

Affected Products

Luca

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-33840 · Security Note
• https://luca-app.de/securityoverview/processes/guest_registration.html#verifying-the-contact-data · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-33840 · Vendor Advisory
• https://gitlab.com/lucaapp/web/-/issues/1#note_560963608 · Note