CVE-2023-38486 in 9000
Summary
by MITRE • 09/06/2023
A vulnerability in the secure boot implementation on affected Aruba 9200 and 9000 Series Controllers and Gateways allows an attacker to bypass security controls which would normally prohibit unsigned kernel images from executing. An attacker can use this vulnerability to execute arbitrary runtime operating systems, including unverified and unsigned OS images.
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Analysis
by VulDB Data Team • 09/26/2024
The vulnerability identified as CVE-2023-38486 represents a critical flaw in the secure boot mechanism of Aruba 9200 and 9000 Series Controllers and Gateways. This issue resides within the firmware implementation that governs the boot process of these network infrastructure devices, fundamentally undermining the security posture of enterprise wireless networks. The secure boot feature is designed to ensure that only authenticated and verified software can execute during the system initialization process, creating a trusted execution environment that prevents malicious code from gaining a foothold in the network infrastructure.
The technical flaw manifests as a failure in the cryptographic verification process that should validate kernel images before execution. This weakness allows attackers to bypass the normal security controls that would typically reject unsigned or unverified operating system components. The vulnerability specifically affects the boot chain validation mechanism, where the system should verify digital signatures and integrity checks on kernel modules before loading them into memory. When this verification process is circumvented, attackers can inject malicious code that executes with the highest privileges available to the system, effectively granting them complete control over the network controller's operations.
The operational impact of this vulnerability extends far beyond simple unauthorized code execution, as it fundamentally compromises the integrity of enterprise network infrastructure. Attackers can leverage this weakness to install backdoors, modify network configurations, or redirect traffic through malicious intermediaries, all while remaining undetected by normal security monitoring systems. The implications are particularly severe for organizations relying on Aruba controllers for critical network operations, as the compromised device could serve as a persistent entry point for lateral movement throughout the network. This vulnerability directly aligns with attack patterns described in the MITRE ATT&CK framework under the T1068 technique for exploit for privilege escalation and T1566 for credential harvesting through network infrastructure compromise.
Organizations should prioritize immediate mitigation through firmware updates provided by Aruba, as the vulnerability creates a persistent threat vector that can be exploited repeatedly. Network segmentation and monitoring of controller communications should be enhanced to detect anomalous behavior that might indicate exploitation attempts. The vulnerability also highlights the importance of maintaining updated security controls in network infrastructure devices, as these systems often operate with elevated privileges and serve as central points of failure in enterprise security architectures. Compliance with industry standards such as NIST SP 800-171 and ISO 27001 becomes critical when addressing such vulnerabilities, as they directly impact the confidentiality, integrity, and availability of network services. Organizations should also consider implementing additional runtime protection measures and regular security assessments to identify similar weaknesses in their network infrastructure components.