PT-2022-10364 · Telenot · Telenot Compasx

Markus Vervier + 1 · Published 2022-01-20 · Updated 2024-09-16 · CVE-2021-34600

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Telenot CompasX versions prior to 32.0

Description The issue is related to the use of a weak seed for random number generation, which leads to predictable AES keys used in NFC tags for local authorization of users. This may result in the total loss of trustworthiness of the installation.

Recommendations For versions prior to 32.0, update to version 32.0 or later to resolve the issue. As a temporary workaround, consider restricting the use of NFC tags for authorization until a patch is available.

Exploit

Fix

Weakness Enumeration

CWE-335

Related Identifiers

CVE-2021-34600

Affected Products

Telenot Compasx

References · 9

• 🔥 https://github.com/x41sec/CVE-2021-34600 · Exploit
• 🔥 https://x41-dsec.de/lab/advisories/x41-2021-003-telenot-complex-insecure-keygen · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-34600 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34600 · Vendor Advisory
• https://t.me/cvenotify/56069 · Telegram Post
• https://t.me/cibsecurity/35911 · Telegram Post
• https://t.me/cvenotify/25710 · Telegram Post
• https://t.me/cvenotify/94802 · Telegram Post
• https://t.me/cvenotify/29453 · Telegram Post