CVE-2024-26304 in ArubaOS
Summary
by MITRE • 05/01/2024
There is a buffer overflow vulnerability in the underlying L2/L3 Management service that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's access point management protocol) UDP port (8211). Successful exploitation of this vulnerability results in the ability to execute arbitrary code as a privileged user on the underlying operating system.
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Analysis
by VulDB Data Team • 05/01/2024
The vulnerability identified as CVE-2024-26304 represents a critical buffer overflow flaw within Aruba's Layer 2/Layer 3 management service architecture. This security weakness exists in the protocol handling mechanisms that govern how the system processes incoming network traffic destined for the PAPI (Aruba Access Point Protocol) interface. The specific attack vector involves sending maliciously crafted UDP packets to port 8211, which serves as the designated communication channel for managing wireless access points within Aruba's networking ecosystem. The underlying issue stems from insufficient input validation and memory boundary checking within the service's packet processing routines, creating an exploitable condition that allows attackers to overwrite adjacent memory locations through carefully constructed payload data.
The technical exploitation of this vulnerability enables unauthenticated remote code execution on affected devices, fundamentally compromising the security posture of the entire network infrastructure. When the malformed packets are received and processed by the vulnerable management service, the buffer overflow condition triggers memory corruption that can be leveraged to inject and execute arbitrary code with the privileges of the underlying operating system. This privilege escalation capability means that attackers can gain full control over the device without requiring any authentication credentials, effectively bypassing all traditional access control mechanisms. The vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and represents a significant deviation from standard network security practices where authentication and authorization controls should prevent such unauthorized access scenarios.
The operational impact of this vulnerability extends far beyond simple network disruption, as it provides attackers with complete system compromise capabilities that can be leveraged for extensive lateral movement and data exfiltration. Organizations relying on Aruba networking equipment for their wireless infrastructure face severe risks including unauthorized network access, potential data breaches, and complete loss of control over their wireless access point management systems. The unauthenticated nature of the attack means that even networks with proper access controls can be compromised if attackers can reach the vulnerable UDP port, making this particularly dangerous in environments where network segmentation is not properly implemented. The vulnerability also demonstrates weaknesses in the principle of least privilege, as the management service operates with elevated privileges that are not appropriately isolated from the broader network environment. From an attack framework perspective, this vulnerability maps to multiple ATT&CK techniques including T1190 for exploit public-facing application and T1059 for command and scripting interpreter, while also enabling further exploitation through T1078 for valid accounts and T1566 for credential harvesting.
Mitigation strategies for CVE-2024-26304 must address both immediate protective measures and long-term architectural improvements to prevent similar vulnerabilities from emerging in future deployments. Organizations should immediately implement network segmentation to restrict access to port 8211 from trusted network segments only, while also deploying network access control lists and firewall rules to prevent unauthorized access to the vulnerable service. The most effective immediate solution involves applying vendor-provided security patches and firmware updates that address the buffer overflow condition in the management service code. Additionally, network administrators should consider disabling the PAPI service entirely if it is not required for operations, as this eliminates the attack surface while maintaining network functionality. Regular network monitoring and intrusion detection system deployments should be enhanced to detect anomalous traffic patterns associated with this vulnerability, while security teams should implement comprehensive vulnerability assessment procedures to identify other potentially vulnerable services within the network infrastructure. The remediation process should also include thorough testing of patched systems to ensure that the vulnerability has been properly addressed without introducing regressions in network functionality.