Use of Client-Side Authentication in SIMATIC WinCC OA - CVE-2022-33139
Published: June 22, 2022
Vulnerability identifier: #VU64575
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-33139
CWE-ID: CWE-603
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the affected applications use client-side only authentication when neither server-side authentication nor Kerberos authentication is enabled. A remote attacker can impersonate other users or exploit the client-server protocol without being authenticated.
Affected software
SIMATIC WinCC OA
Desigo CC Compact
Desigo CC
Cerberus DMS
Desigo CC Compact
Desigo CC
Cerberus DMS
How to mitigate CVE-2022-33139
Install updates from vendor's website.