CVE-2022-22488 : Security Advisory and Response
Learn about CVE-2022-22488 impacting IBM OpenBMC OP910 and OP940. Understand the vulnerability, its impact, and mitigation measures to prevent denial of service.
IBM OpenBMC OP910 and OP940 could allow a privileged user to cause a denial of service by uploading or deleting too many CA certificates in a short period of time. This vulnerability has been assigned IBM X-Force ID: 2226337.
Understanding CVE-2022-22488
This section provides insights into the details and impact of the IBM OpenBMC denial of service vulnerability.
What is CVE-2022-22488?
IBM OpenBMC OP910 and OP940 are susceptible to a denial of service attack when a privileged user performs excessive uploads or deletions of CA certificates within a short timeframe.
The Impact of CVE-2022-22488
The impact of this vulnerability is a disruption of service, leading to a denial of service condition for OpenBMC devices running versions OP910 and OP940.
Technical Details of CVE-2022-22488
Let's dive deeper into the technical aspects of the CVE-2022-22488 vulnerability.
Vulnerability Description
The vulnerability in IBM OpenBMC OP910 and OP940 allows a privileged user to exploit the system by flooding it with CA certificate uploads or deletions, resulting in a denial of service.
Affected Systems and Versions
The affected systems include IBM OpenBMC devices running versions OP910 and OP940.
Exploitation Mechanism
By manipulating the upload and deletion of CA certificates within a short timeframe, a privileged user can exploit this vulnerability to disrupt the OpenBMC service.
Mitigation and Prevention
Here are the essential steps to mitigate and prevent the exploitation of CVE-2022-22488.
Immediate Steps to Take
- Monitor and limit the number of CA certificate uploads and deletions by privileged users.
- Implement rate limiting mechanisms to prevent flooding of CA certificates.
Long-Term Security Practices
- Regularly update and patch the OpenBMC firmware to address security vulnerabilities.
- Educate users on best practices for managing certificates to avoid service disruptions.
Patching and Updates
Stay informed about security advisories from IBM and apply recommended patches and updates to secure your OpenBMC devices.