CVE-2023-35982 in InstantOS
Summary
by MITRE • 07/25/2023
There are buffer overflow vulnerabilities in multiple underlying services 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 these vulnerabilities result 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 • 07/26/2023
The vulnerability identified as CVE-2023-35982 represents a critical buffer overflow flaw affecting Aruba's PAPI (Protocol for Access Point Interface) service running on UDP port 8211. This issue resides within multiple underlying services that form part of Aruba's wireless access point management infrastructure, creating a significant attack surface for remote exploitation. The vulnerability's classification as a buffer overflow directly aligns with CWE-121, which describes heap-based buffer overflow conditions where insufficient memory bounds checking allows attackers to overwrite adjacent memory locations. The affected services operate at a fundamental level within the network infrastructure, making them prime targets for attackers seeking persistent access to enterprise wireless networks.
The technical exploitation of this vulnerability occurs through the transmission of specially crafted UDP packets to the designated port 8211, which serves as the primary communication channel for PAPI protocol operations. When these malformed packets are processed by the vulnerable services, the insufficient input validation and memory management practices result in buffer overflow conditions that can be leveraged to overwrite critical program execution structures. This overflow typically leads to the corruption of stack memory or heap structures, potentially allowing attackers to inject and execute arbitrary code with the privileges of the affected service processes. The exploitation does not require authentication, making it particularly dangerous as attackers can target these vulnerabilities from external network positions without needing valid credentials.
The operational impact of successful exploitation extends far beyond simple code execution, as the vulnerability enables attackers to gain privileged access to the underlying operating system. This elevated privilege level provides attackers with the ability to manipulate network configurations, establish persistence mechanisms, and potentially move laterally within the enterprise network. The implications are particularly severe in wireless network environments where access points serve as critical infrastructure components, as exploitation could lead to complete network compromise and unauthorized access to sensitive corporate data. The vulnerability's presence in multiple underlying services increases the likelihood of successful exploitation and reduces the effectiveness of traditional network segmentation approaches.
Mitigation strategies for CVE-2023-35982 should prioritize immediate patch deployment from Aruba, as this represents the most effective defense against the identified vulnerabilities. Network administrators should implement strict firewall rules to restrict access to UDP port 8211 from untrusted networks, effectively blocking external exploitation attempts while maintaining internal operational functionality. The implementation of network monitoring solutions capable of detecting anomalous UDP traffic patterns on port 8211 can provide early warning of potential exploitation attempts. Additionally, organizations should consider implementing network segmentation strategies that isolate wireless infrastructure from critical business systems, reducing the potential impact of successful exploitation. Security teams should also conduct comprehensive vulnerability assessments to identify any other services or protocols that may be vulnerable to similar buffer overflow conditions, aligning with ATT&CK technique T1210 for exploitation of remote services. The remediation process must include thorough testing of patches in controlled environments before widespread deployment to ensure operational stability and prevent service disruption.