PT-2021-21366 · Knx Ets · Knx Ets

Published 2021-07-19 · Updated 2024-08-04 · CVE-2021-36799

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions KNX ETS versions 5 through 5.7.6

Description The issue allows local users to read project information due to the use of a hard-coded password ETS5Password with a salt value of Ivan Medvedev. This problem is specific to products that are no longer supported by the maintainer.

Recommendations For KNX ETS versions 5 through 5.7.6, consider changing the hard-coded password ETS5Password to a unique and secure password to prevent unauthorized access to project information. As a temporary workaround, restrict local access to the system to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Using Hardcoded Credentials

Weakness Enumeration

CWE-798

Related Identifiers

CVE-2021-36799

Affected Products

Knx Ets

References · 10

• 🔥 https://github.com/robertguetzkow/ets5-password-recovery · Exploit
• https://knx.org/knx-en/for-professionals/software/ets-5-professional · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-36799 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-36799 · Security Note
• https://t.me/cibsecurity/32128 · Telegram Post
• https://t.me/cvenotify/88915 · Telegram Post
• https://t.me/cvenotify/23185 · Telegram Post
• https://t.me/cvenotify/88877 · Telegram Post
• http://packetstormsecurity.com/files/165200/ETS5-Password-Recovery-Tool.html · Note
• https://t.me/cvenotify/18376 · Telegram Post