SB2022061523 - Improper validation of integrity check value in Siemens SCALANCE XM-400 and XR-500 Devices
Published: June 15, 2022
Security Bulletin ID
SB2022061523
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper validation of integrity check value (CVE-ID: CVE-2021-37182)
CWE-ID: CWE-354 - Improper Validation of Integrity Check Value
CVSSv4: 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
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 update from vendor's website.