Executive Summary
In July 2026, cybersecurity researchers identified over 36,000 Baseboard Management Controller (BMC) interfaces exposing the Intelligent Platform Management Interface (IPMI) protocol to the public internet. Of these, 24,650 interfaces disclosed password-derived authentication hashes before login due to a vulnerability inherent in the IPMI v2.0 specification (CVE-2013-4786). This flaw allows remote attackers to obtain password hashes and conduct offline password guessing attacks, potentially compromising server management systems.
The widespread exposure of BMCs with default or weak passwords, especially in modern AI data centers hosting multiple tenants, underscores a significant security risk. Attackers exploiting this vulnerability can gain persistent access, bypass traditional security controls, and threaten the integrity of shared infrastructure, highlighting the urgent need for enhanced security measures in server management protocols.
Why This Matters Now
The resurgence of attacks exploiting the IPMI v2.0 vulnerability (CVE-2013-4786) in 2026 highlights the critical need for organizations to reassess and fortify their server management security practices. With over 24,000 BMC interfaces publicly exposing authentication hashes, the risk of unauthorized access and potential data breaches has escalated, especially in environments like AI data centers where multiple tenants share infrastructure. Immediate action is required to mitigate these vulnerabilities and protect sensitive systems from exploitation.
Attack Path Analysis
Attackers exploited internet-exposed IPMI interfaces to extract password hashes, enabling unauthorized access to BMCs. With administrative control over BMCs, they escalated privileges to manage server hardware and firmware. This access facilitated lateral movement across the network by compromising additional systems. Attackers established command and control channels through the compromised BMCs to maintain persistent access. They exfiltrated sensitive data by leveraging the BMCs' capabilities. Finally, they caused significant impact by disrupting server operations and potentially deploying malicious firmware.
Kill Chain Progression
Initial Compromise
Description
Attackers exploited internet-exposed IPMI interfaces to extract password hashes, enabling unauthorized access to BMCs.
Related CVEs
CVE-2013-4786
CVSS 7.5The IPMI 2.0 specification supports RMCP+ Authenticated Key-Exchange Protocol (RAKP) authentication, which allows remote attackers to obtain password hashes and conduct offline password guessing attacks by obtaining the HMAC from a RAKP message 2 response from a BMC.
Affected Products:
Dell Data Domain – All versions supporting IPMI v2.0
Intel Intelligent Platform Management Interface – v2.0
Oracle Fujitsu M10 Firmware – All versions supporting IPMI v2.0
Exploit Status:
proof of concept
MITRE ATT&CK® Techniques
Adversary-in-the-Middle
Brute Force
Valid Accounts
Network Sniffing
Hardware Additions
Potential Compliance Exposure
Mapping incident impact across multiple compliance frameworks.
PCI DSS 4.0 – Strong Authentication for Users
Control ID: 8.2.1
NYDFS 23 NYCRR 500 – Cybersecurity Policy
Control ID: 500.03
DORA – ICT Risk Management Framework
Control ID: Article 5
CISA ZTMM 2.0 – Device Security
Control ID: Pillar 3: Devices
NIS2 Directive – Security Measures
Control ID: Article 21
Sector Implications
Industry-specific impact of the vulnerabilities, including operational, regulatory, and cloud security risks.
Information Technology/IT
Critical exposure as BMC infrastructure misconfiguration affects 24,650 servers with disclosed IPMI password hashes, enabling privilege escalation and lateral movement attacks.
Health Care / Life Sciences
HIPAA compliance violations through exposed server management interfaces threaten patient data security via unencrypted traffic and inadequate access controls.
Banking/Mortgage
Financial infrastructure at severe risk from BMC vulnerabilities enabling unauthorized server access, threatening transaction systems and regulatory compliance requirements.
Government Administration
Public sector server management systems vulnerable to nation-state attacks through exposed IPMI interfaces, compromising critical government infrastructure and citizen data.
Sources
- 24,650 Internet-Exposed BMCs Disclose IPMI Password Hashes Before Loginhttps://thehackernews.com/2026/07/24650-internet-exposed-bmcs-disclose.htmlVerified
- Data Domain: IPMI v2.0 Password Hash Disclosurehttps://www.dell.com/support/kbdoc/en-us/000222162/data-domain-ipmi-v2-0-password-hash-disclosureVerified
- CVE-2013-4786 - Dell BMC IPMI RA External Password Hash Exposurehttps://cvefeed.io/vuln/detail/CVE-2013-4786Verified
- CVE-2013-4786 | INCIBE-CERT | INCIBEhttps://www.incibe.es/en/incibe-cert/early-warning/vulnerabilities/cve-2013-4786Verified
Frequently Asked Questions
Cloud Native Security Fabric Mitigations and ControlsCNSF
Aviatrix Zero Trust CNSF is pertinent to this incident as it would likely limit unauthorized access to BMCs and constrain lateral movement, thereby reducing the attacker's ability to escalate privileges and exfiltrate data.
Control: Cloud Native Security Fabric (CNSF)
Mitigation: Implementing Aviatrix CNSF would likely restrict unauthorized access to BMCs by enforcing strict access controls and segmenting management interfaces from external networks.
Control: Zero Trust Segmentation
Mitigation: Aviatrix Zero Trust Segmentation would likely limit the attacker's ability to escalate privileges by enforcing strict identity-based access controls and segmenting critical management systems.
Control: East-West Traffic Security
Mitigation: Aviatrix East-West Traffic Security would likely constrain lateral movement by monitoring and controlling internal traffic flows, thereby reducing the attacker's ability to compromise additional systems.
Control: Multicloud Visibility & Control
Mitigation: Aviatrix Multicloud Visibility & Control would likely detect and limit unauthorized command and control channels by providing comprehensive monitoring and control over network traffic.
Control: Egress Security & Policy Enforcement
Mitigation: Aviatrix Egress Security & Policy Enforcement would likely limit data exfiltration by controlling and monitoring outbound traffic from critical systems.
Aviatrix CNSF would likely reduce the overall impact by limiting the attacker's ability to disrupt server operations and deploy malicious firmware through enforced segmentation and access controls.
Impact at a Glance
Affected Business Functions
- Server Management
- Remote Administration
Estimated downtime: N/A
Estimated loss: N/A
Potential exposure of administrative password hashes, leading to unauthorized access risks.
Recommended Actions
Key Takeaways & Next Steps
- • Implement Zero Trust Segmentation to restrict access to management interfaces like IPMI.
- • Enforce strong password policies and regular rotation to mitigate credential-based attacks.
- • Deploy East-West Traffic Security controls to monitor and restrict lateral movement within the network.
- • Utilize Multicloud Visibility & Control solutions to detect and respond to unauthorized access attempts.
- • Apply Egress Security & Policy Enforcement to prevent unauthorized data exfiltration from compromised systems.
