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Supermicro's BMC Firmware Found Vulnerable to Multiple Critical Vulnerabilities

Supermicro's BMC Firmware Found Vulnerable to Multiple Critical Vulnerabilities

Oct 06, 2023 Server Security / Vulnerability
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
Critical Flaws in AMI MegaRAC BMC Software Expose Servers to Remote Attacks

Critical Flaws in AMI MegaRAC BMC Software Expose Servers to Remote Attacks

Jul 20, 2023 Hardware Security / SysAdmin
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
How to Increase Engagement with Your Cybersecurity Clients Through vCISO Reporting

How to Increase Engagement with Your Cybersecurity Clients Through vCISO Reporting

Jul 22, 2024vCISO / Business Security
As a vCISO, you are responsible for your client's cybersecurity strategy and risk governance. This incorporates multiple disciplines, from research to execution to reporting. Recently, we published a comprehensive playbook for vCISOs, "Your First 100 Days as a vCISO – 5 Steps to Success" , which covers all the phases entailed in launching a successful vCISO engagement, along with recommended actions to take, and step-by-step examples.  Following the success of the playbook and the requests that have come in from the MSP/MSSP community, we decided to drill down into specific parts of vCISO reporting and provide more color and examples. In this article, we focus on how to create compelling narratives within a report, which has a significant impact on the overall MSP/MSSP value proposition.  This article brings the highlights of a recent guided workshop we held, covering what makes a successful report and how it can be used to enhance engagement with your cyber security clients.
Additional Supply Chain Vulnerabilities Uncovered in AMI MegaRAC BMC Software

Additional Supply Chain Vulnerabilities Uncovered in AMI MegaRAC BMC Software

Feb 01, 2023 Server and Cloud Security
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
cyber security

Free OAuth Investigation Checklist - How to Uncover Risky or Malicious Grants

websiteNudge SecuritySaaS Security / Supply Chain
OAuth grants provide yet another way for attackers to compromise identities. Download our free checklist to learn what to look for and where when reviewing OAuth grants for potential risks.
New BMC Supply Chain Vulnerabilities Affect Servers from Dozens of Manufacturers

New BMC Supply Chain Vulnerabilities Affect Servers from Dozens of Manufacturers

Dec 05, 2022 Server Security / Cloud Technology
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
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