PT-2021-20338 · Unknown · Th Wildau Covid-19 Contact Tracing

Lanmarc77 · Published 2021-09-07 · Updated 2022-07-12 · CVE-2021-33831

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: TH Wildau COVID-19 Contact Tracing application through 2021-09-01

Description: The issue is related to Incorrect Access Control in the api/account/register endpoint. An attacker can create 500 random users within 2500 seconds, potentially interfering with the tracing of infection chains.

Recommendations: For the TH Wildau COVID-19 Contact Tracing application through 2021-09-01, consider temporarily restricting access to the api/account/register endpoint to prevent exploitation until a fix is available. As a mitigation measure, limit the number of user registrations within a certain time frame to prevent abuse. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2021-33831

Affected Products

Th Wildau Covid-19 Contact Tracing

References · 6

• 🔥 https://github.com/lanmarc77/CVE-2021-33831 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-33831 · Security Note
• https://th-wildau.de/studieren-weiterbilden/neuigkeiten-und-veranstaltungen/corona · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-33831 · Vendor Advisory
• https://t.me/cvenotify/20777 · Telegram Post
• https://t.me/cibsecurity/28319 · Telegram Post