Incident Score: Analysis & Impact (SUPHEW1785248754)
The details regarding individual company incidents & reports gives you full view from every side.
Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Supermicro's Vulnerability and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts Supermicro Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the Supermicro breach identified under incident ID SUPHEW1785248754.
The analysis begins with a detailed overview of Supermicro's information like the linkedin page: https://www.linkedin.com/company/supermicro, the number of followers: 202077, the industry type: Computer Hardware Manufacturing and the number of employees: 5707 employees
After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 796 and after the incident was 792 with a difference of -4 which is could be a good indicator of the severity and impact of the incident.
In the next step of the video, we will analyze in more details the incident and the impact it had on Supermicro and their customers.
Supermicro recently reported "Critical BMC Vulnerability Exposes Thousands of Servers to Offline Password Cracking", a noteworthy cybersecurity incident.
A decade-old vulnerability in baseboard management controllers (BMCs) is leaving tens of thousands of servers exposed to credential theft without detection.
The disruption is felt across the environment, affecting 36,872 publicly accessible BMCs, 24,650 leaking hashes, and exposing Password-derived authentication hashes (HMAC-SHA1), with nearly 24,650 hashes leaked records at risk.
In response, moved swiftly to contain the threat with measures like Blocking UDP port 623 at the perimeter, disabling legacy IPMI 1.5 and weak cipher suites, and began remediation that includes Rotating default passwords, isolating BMCs via VLANs or access controls, replacing factory credentials during provisioning, and stakeholders are being briefed through Vendor acknowledgment (Supermicro), public disclosure by researchers.
The case underscores how Ongoing (researchers disclosed findings, vendors acknowledged), teams are taking away lessons such as Default credentials and legacy protocols (IPMI 2.0) pose significant risks. BMCs must be isolated and secured with strong, unique passwords. Vendor default password policies (e.g., Supermicro’s 10-character uppercase format) are insufficient against modern brute-force attacks, and recommending next steps like Block UDP port 623 at the perimeter, Disable legacy IPMI 1.5 and weak cipher suites and Replace factory credentials during provisioning, with advisories going out to stakeholders covering Supermicro and HPE advised customers to rotate default passwords and isolate BMCs.
Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.
The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.
MITRE ATT&CK® Correlation Analysis
Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (90%), with evidence including 36,872 publicly accessible BMCs via Shodan, and flaw...allows attackers to request HMAC-SHA1 hashes over UDP port 623 without authentication and External Remote Services (T1133) with moderate to high confidence (80%), supported by evidence indicating bMCs operate below the OS, granting remote power control, firmware flashing, and console access. Under the Credential Access tactic, the analysis identified Brute Force (T1110) with high confidence (90%), with evidence including a third of the captured hashes were recoverable using public wordlists, and eight GPUs could brute-force Supermicros 10-character format in under an hour, Brute Force: Password Cracking (T1110.002) with high confidence (90%), with evidence including offline password cracking using GPU-accelerated tools like Hashcat, and hPEs iLO passwords cracked in 32 seconds per hash, Steal or Forge Kerberos Tickets: AS-REP Roasting (T1558.004) with moderate to high confidence (70%), supported by evidence indicating hMAC-SHA1 hashes leaked before any login attempt via IPMI 2.0 handshake flaw, and Valid Accounts: Default Accounts (T1078.001) with moderate to high confidence (80%), with evidence including 2,340 endpoints had default accounts (e.g., ADMIN or root), and one in six exposed hosts accepted empty usernames paired with weak passwords. Under the Persistence tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating compromised BMCs can maintain persistence even after system rebuilds and Pre-OS Boot: System Firmware (T1542.001) with moderate to high confidence (70%), supported by evidence indicating iLOBleed rootkit known to persist in iLO firmware. Under the Privilege Escalation tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating bMCs grant remote power control, firmware flashing, and console access below OS-level security. Under the Defense Evasion tactic, the analysis identified Impair Defenses: Disable or Modify Tools (T1562.001) with moderate to high confidence (70%), supported by evidence indicating bMC access invisible to host-based security tools and Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating attackers use cracked credentials to blend in as legitimate users. Under the Lateral Movement tactic, the analysis identified Remote Services: SSH (T1021.004) with moderate confidence (60%), supported by evidence indicating bMCs provide console access, enabling lateral movement to connected systems. Under the Impact tactic, the analysis identified Endpoint Denial of Service: Application or System Exploitation (T1499.004) with moderate to high confidence (70%), supported by evidence indicating bMCs grant remote power control, enabling denial of service attacks and Data Manipulation: Stored Data Manipulation (T1565.001) with moderate confidence (60%), supported by evidence indicating bMCs allow firmware flashing, enabling persistent malware or data manipulation. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Supermicro Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/supermicro/incident/SUPHEW1785248754
- Supermicro CyberSecurity Rating page: https://www.rankiteo.com/company/supermicro
- Supermicro Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/suphew1785248754-supermicro-hpe-vulnerability-january-2013/
- Supermicro CyberSecurity Score History: https://www.rankiteo.com/company/supermicro/history
- Supermicro CyberSecurity Incident Source: https://www.helpnetsecurity.com/2026/07/28/exposed-bmc-ipmi-vulnerability-research/
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf