CVE-2023-38484 in 9000
Summary
by MITRE • 09/06/2023
Vulnerabilities exist in the BIOS implementation of Aruba 9200 and 9000 Series Controllers and Gateways that could allow an attacker to execute arbitrary code early in the boot sequence. An attacker could exploit this vulnerability to gain access to and change underlying sensitive information in the affected controller leading to complete system compromise.
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Analysis
by VulDB Data Team • 10/02/2023
The vulnerability identified as CVE-2023-38484 represents a critical security flaw within the firmware implementation of Aruba 9200 and 9000 Series Controllers and Gateways. This issue resides in the BIOS layer of these networking devices, which serves as the foundational firmware that initializes and manages the hardware during the boot process. The affected devices operate within enterprise wireless networking environments, where they function as central management points for wireless access points and network infrastructure components. These controllers are typically deployed in mission-critical environments including corporate offices, data centers, and industrial facilities where network availability and security are paramount.
The technical nature of this vulnerability stems from insufficient validation mechanisms within the BIOS implementation that governs the early boot sequence of these devices. Specifically, the flaw allows for arbitrary code execution during the initial system initialization phase before the operating system fully loads and implements its security controls. This early execution window represents a critical attack surface since it occurs before normal security measures take effect and before the device can properly authenticate or validate system integrity. The vulnerability manifests as a lack of proper input sanitization and code execution controls within the BIOS code that handles boot process initialization. This weakness enables an attacker to inject malicious code that can execute with the highest possible privileges, effectively bypassing traditional security boundaries that would normally protect the system during later boot phases.
The operational impact of this vulnerability extends far beyond simple unauthorized access, as it provides attackers with complete system compromise capabilities. Once exploited, the attacker gains the ability to modify underlying sensitive information stored within the device, including configuration parameters, authentication credentials, and potentially network access controls. The compromised system could be used to establish persistent backdoors, redirect network traffic, or serve as a launch point for further attacks within the network infrastructure. This vulnerability fundamentally undermines the security posture of organizations relying on these controllers, as it allows attackers to gain control before any network-based security measures can be effectively enforced. The implications are particularly severe in environments where these controllers manage large numbers of wireless access points, as a single compromised device could potentially affect thousands of endpoints across the network.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-254, which addresses security weaknesses in the implementation of the BIOS or firmware components. The attack vector follows patterns consistent with the ATT&CK framework's T1068 technique for Exploitation for Privilege Escalation, specifically targeting the boot process to gain elevated privileges. Additionally, the vulnerability demonstrates characteristics of T1542.003, which involves exploitation of system firmware for persistence and privilege escalation. Organizations should consider implementing firmware integrity monitoring solutions and maintaining strict inventory controls over these critical network devices. The remediation approach requires immediate firmware updates from Aruba, along with comprehensive network segmentation to limit the potential impact if exploitation occurs. Security teams should also implement continuous monitoring for unauthorized firmware modifications and establish robust change management processes for critical network infrastructure components. The vulnerability underscores the importance of securing the entire attack surface, including firmware and boot processes, rather than focusing solely on network-level security controls.