Insufficient Session Expiration in Siemens products - CVE-2022-33137

Vulnerability identifier: #VU65261

CSH Severity: Medium

CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-33137

CWE-ID: CWE-613

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient session expiration issue. A remote user can hijack other users' sessions.

SIMATIC MV540 H
SIMATIC MV540 S
SIMATIC MV550 H
SIMATIC MV550 S
SIMATIC MV560 U
SIMATIC MV560 X

Install updates from vendor's website.

SIMATIC MV540 H - update to 3.3
SIMATIC MV540 S - update to 3.3
SIMATIC MV550 H - update to 3.3
SIMATIC MV550 S - update to 3.3
SIMATIC MV560 U - update to 3.3
SIMATIC MV560 X - update to 3.3

• https://cert-portal.siemens.com/productcert/pdf/ssa-348662.pdficsa-22-195-03

• Multiple vulnerabilities in Siemens SIMATIC MV500 Devices