Advisory

CISA warns that AMI MegaRAC Vulnerability that enables server takeover is actively exploited

Take action: Check your servers NOW. If any of them use AMI's MegaRAC Baseboard Management Controller, make sure that the BMC is isolated in a separate network segment and only accessible only from internal trusted systems. Reach out to your server vendor for a patch, and plan a patch period. Don't ignore this one, since hackers are already exploiting this flaw.


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CISA is reporting that attackers are actively exploiting a maximum severity vulnerability in AMI's MegaRAC Baseboard Management Controller software that enables complete remote server takeover and potential physical hardware destruction. 

The flaw is tracked as CVE-2024-54085 (CVSS score 10.0), and allows remote unauthenticated attackers to hijack servers, deploy ransomware, and potentially cause irreversible hardware damage through malicious firmware manipulation.

The vulnerability affects AMI's MegaRAC SPx Baseboard Management Controller software that provides remote system management capabilities for troubleshooting servers without being physically present. 

The MegaRAC BMC firmware is used by several vendors including HPE, Asus, and ASRock that supply equipment to cloud service providers and data centers. The exploit has been verified against multiple high-profile enterprise server models including HPE Cray XD670, Asus RS720A-E11-RS24U, and ASRockRack systems. Eclypsium found more than 1,000 servers online that were potentially exposed to attacks and said that creating an exploit is "not challenging,".

There are currently no details on how the vulnerability is being weaponized in the wild, who may be exploiting it, and the scale of the attacks. 

Organizations using AMI MegaRAC-based server infrastructure should immediately prioritize applying available firmware updates and implementing network segmentation to limit BMC access. While AMI released patches on March 11, server manufacturers have been slow to integrate and distribute fixes, leaving many organizations vulnerable to a maximum-severity flaw that grants attackers complete control over affected systems. 

CISA warns that AMI MegaRAC Vulnerability that enables server takeover is actively exploited