CVE-2021-26581 Explained : Impact and Mitigation
CVE-2021-26581 affects HPE Superdome Flex Server prior to version 3.30.142, enabling remote attackers to trigger a denial of service attack. Learn how to mitigate this vulnerability.
A potential security vulnerability has been identified in HPE Superdome Flex server that can be remotely exploited, leading to a denial of service attack. This CVE affects versions prior to 3.30.142 and requires a firmware update for mitigation.
Understanding CVE-2021-26581
This CVE impacts the HPE Superdome Flex Server, potentially allowing remote attackers to trigger a denial of service attack.
What is CVE-2021-26581?
CVE-2021-26581 is a security vulnerability found in the HPE Superdome Flex Server that could be exploited remotely to cause a denial of service condition. The issue arises due to hung connections on the BMC web interface.
The Impact of CVE-2021-26581
Exploitation of this vulnerability could result in a denial of service attack, requiring the rebooting of the monarch BMC to resolve the issue. This vulnerability does not affect other BMC management functions.
Technical Details of CVE-2021-26581
To better understand this CVE, let's dive into its technical details.
Vulnerability Description
The vulnerability allows remote attackers to conduct a denial of service attack on the HPE Superdome Flex Server by creating hung connections to the BMC web interface.
Affected Systems and Versions
HPE Superdome Flex Servers running versions prior to 3.30.142 are affected by this vulnerability.
Exploitation Mechanism
Remote attackers can exploit this vulnerability to trigger a denial of service attack on the target server.
Mitigation and Prevention
Protecting your systems from CVE-2021-26581 is crucial to maintaining their security.
Immediate Steps to Take
Immediately update the Superdome Flex Server firmware to version 3.30.142 or later to mitigate the vulnerability and prevent exploitation.
Long-Term Security Practices
Regularly monitor for security updates from HPE and implement best security practices to safeguard your infrastructure.
Patching and Updates
Ensure timely application of patches and updates provided by HPE to address vulnerabilities and enhance the security posture of your systems.