BMC Software | Breaking Cybersecurity News | The Hacker News

Multiple security vulnerabilities have been disclosed in the Intelligent Platform Management Interface ( IPMI ) firmware for Supermicro baseboard management controllers (BMCs) that could result in privilege escalation and execution of malicious code on affected systems. The seven flaws, tracked from CVE-2023-40284 through CVE-2023-40290, vary in severity from High to Critical, according to Binarly, enabling unauthenticated actors to gain root access to the BMC system. Supermicro has  shipped  a BMC firmware update to patch the bugs. BMCs are special processors on server motherboards that support remote management, enabling administrators to monitor hardware indicators such as temperature, set fan speed, and update the UEFI system firmware. What's more, BMC chips remain operational even if the host operating system is offline, making them lucrative attack vectors to deploy  persistent malware . A brief explainer of each of the vulnerabilities is below - CVE-2023-40284, CVE-20

Two more security flaws have been disclosed in AMI MegaRAC Baseboard Management Controller (BMC) software that, if successfully exploited, could allow threat actors to remotely commandeer vulnerable servers and deploy malware. "These new vulnerabilities range in severity from High to Critical, including unauthenticated remote code execution and unauthorized device access with superuser permissions," Eclypsium researchers Vlad Babkin and Scott Scheferman said in a report shared with The Hacker News. "They can be exploited by remote attackers having access to Redfish remote management interfaces, or from a compromised host operating system." To make matters worse, the shortcomings could also be weaponized to drop persistent firmware implants that are immune to operating system reinstalls and hard drive replacements, brick motherboard components, cause physical damage through overvolting attacks, and induce indefinite reboot loops. "As attackers shift their

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Two more supply chain security flaws have been disclosed in AMI MegaRAC Baseboard Management Controller (BMC) software, nearly two months after  three security vulnerabilities  were brought to light in the same product. Firmware security firm Eclypsium  said  the two shortcomings were held back until now to provide AMI additional time to engineer appropriate mitigations. The issues, collectively tracked as  BMC&C , could act as a springboard for cyber attacks, enabling threat actors to obtain remote code execution and unauthorized device access with superuser permissions. The two new flaws in question are as follows - CVE-2022-26872  (CVSS score: 8.3) - ​​Password reset interception via API CVE-2022-40258  (CVSS score: 5.3) - Weak password hashes for Redfish and API Specifically, MegaRAC has been found to use the MD5 hashing algorithm with a global salt for older devices, or  SHA-512 with per user salts  on newer appliances, potentially allowing a threat actor to crack th

Three different security flaws have been disclosed in American Megatrends (AMI) MegaRAC  Baseboard Management Controller (BMC) software that could lead to remote code execution on vulnerable servers. "The impact of exploiting these vulnerabilities include remote control of compromised servers, remote deployment of malware, ransomware and firmware implants, and server physical damage (bricking)," firmware and hardware security company Eclypsium  said  in a report shared with The Hacker News. BMCs are privileged independent systems within servers that are used to control low-level hardware settings and manage the host operating system, even in scenarios when the machine is powered off. These capabilities make BMCs an enticing target for threat actors looking to plant persistent malware on devices that can survive operating system reinstalls and hard drive replacements. Some of the major server manufacturers that are known to have used MegaRAC BMC include AMD, Ampere Compu