#VU18656 Improper access control in Siemens SIMATIC WinCC and SIMATIC PCS 7 - CVE-2019-10922
Published: May 31, 2019
Vulnerability identifier: #VU18656
Vulnerability risk: High
CVSSv4.0: 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/E:U/U:Amber
CVE-ID: CVE-2019-10922
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Siemens SIMATIC WinCC
SIMATIC PCS 7
Siemens SIMATIC WinCC
SIMATIC PCS 7
Software vendor:
Siemens
Siemens
Description
The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.
The vulnerability exists due to improper access restrictions when installations have not “Encrypted Communication” configured. A remote unauthenticated attacker with network access may be able to execute arbitrary code.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
A vendor recommends to:
- Upgrade SIMATIC WinCC to v7.3 or newer.
- Upgrade SIMATIC PCS 7 to v8.1 or newer.
- Enable Encrypted Communications (some newer versions have this enabled by default).
- Apply defense-in-depth concepts.