CVE-2022-33139 Auth bypass in Cerberus DMS
Attackers can impersonate users or exploit protocols without authentication when server-side or Kerberos authentication is disabled in Siemens SCADA systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-33139?
CVE-2022-33139 is a critical authentication bypass vulnerability in Siemens Cerberus DMS, published on 21 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been identified in Cerberus DMS (All versions), Desigo CC (All versions), Desigo CC Compact (All versions), SIMATIC WinCC OA V3.16 (All versions in default configuration), SIMATIC WinCC OA V3.17 (All versions in non-default configuration), SIMATIC WinCC OA V3.18 (All versions in non-default configuration). Affected applications use client-side only authentication, when neither server-side authentication (SSA) nor Kerberos authentication is enabled. In this configuration, attackers could impersonate other users or exploit the client-server protocol without being authenticated.
Which versions are affected by CVE-2022-33139?
It affects 4 products.
Products include Siemens Cerberus Dms, Siemens Desigo Cc, Siemens Desigo Cc Compact, Siemens Wincc Open Architecture.
How do I fix CVE-2022-33139?
No fix has been published for CVE-2022-33139 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2022-33139 being exploited?
There is no known exploitation of CVE-2022-33139 in the wild and no public exploit code.
Other vulnerabilities in Siemens Cerberus DMS
Sources
Also known as GHSA-28c6-247x-r9mw.