Use of insufficiently random values in Siemens products - CVE-2022-46353
Published: December 16, 2022
Vulnerability identifier: #VU70392
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2022-46353
CWE-ID: CWE-330
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
SCALANCE X204RNA (HSR)
SCALANCE X204RNA (PRP)
SCALANCE X204RNA EEC (HSR)
SCALANCE X204RNA EEC (PRP)
SCALANCE X204RNA EEC (PRP/HSR)
SCALANCE X204RNA (HSR)
SCALANCE X204RNA (PRP)
SCALANCE X204RNA EEC (HSR)
SCALANCE X204RNA EEC (PRP)
SCALANCE X204RNA EEC (PRP/HSR)
Software vendor:
Siemens
Siemens
Description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the webserver of affected devices calculates session ids and nonces in an insecure manner. A remote attacker can brute-force session ids and hijack existing sessions.
Remediation
Install updates from vendor's website.