#VU64413 Improper validation of integrity check value in Siemens products - CVE-2021-37182
Published: June 15, 2022
Vulnerability identifier: #VU64413
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-37182
CWE-ID: CWE-354
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
SCALANCE XM408-4C
SCALANCE XM408-8C
SCALANCE XM416-4C
SCALANCE XR524-8C 1x230V
SCALANCE XR524-8C 2x230V
SCALANCE XR524-8C 24V
SCALANCE XR526-8C 1x230V
SCALANCE XR526-8C 2x230V
SCALANCE XR526-8C 24V
SCALANCE XR528-6M
SCALANCE XR552-12M
SCALANCE XM408-4C
SCALANCE XM408-8C
SCALANCE XM416-4C
SCALANCE XR524-8C 1x230V
SCALANCE XR524-8C 2x230V
SCALANCE XR524-8C 24V
SCALANCE XR526-8C 1x230V
SCALANCE XR526-8C 2x230V
SCALANCE XR526-8C 24V
SCALANCE XR528-6M
SCALANCE XR552-12M
Software vendor:
Siemens
Siemens
Description
The vulnerability allows a remote attacker to bypass integrity checks.
The vulnerability exists due to a weak algorithm in the OSPF protocol implementation. A remote attacker can send specially crafted OSPF packets and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.