CVE-2023-22781 in InstantOS
Summary
by MITRE • 05/08/2023
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 • 01/31/2025
The vulnerability identified as CVE-2023-22781 represents a critical buffer overflow condition affecting Aruba's PAPI (Protocol for Access Point Information) service running on UDP port 8211. This issue stems from inadequate input validation within multiple underlying services that process packets destined for the PAPI protocol interface. The buffer overflow occurs when the system fails to properly bounds-check incoming data packets, allowing maliciously crafted payloads to overwrite adjacent memory locations in the application's memory space. This fundamental flaw exists at the core of Aruba's wireless access point management infrastructure, specifically impacting devices that utilize the PAPI protocol for communication with central management systems.
The technical exploitation of this vulnerability enables unauthenticated remote code execution through carefully constructed network packets sent to the designated UDP port 8211. Attackers can leverage this weakness to inject malicious code that executes with the privileges of the underlying operating system, effectively granting them complete control over affected devices. The buffer overflow manifests when the system receives packets exceeding the allocated buffer size, causing memory corruption that can be manipulated to redirect program execution flow. This type of vulnerability maps directly to CWE-121, which describes heap-based buffer overflow conditions, and aligns with ATT&CK technique T1059.007 for command and scripting interpreter, as successful exploitation allows for arbitrary command execution within the target environment. The lack of authentication requirements makes this particularly dangerous as attackers can exploit the vulnerability without prior access credentials.
The operational impact of CVE-2023-22781 extends far beyond individual device compromise, potentially enabling attackers to establish persistent footholds within wireless network infrastructures. Organizations utilizing Aruba access points and management systems face significant risks including complete network takeover, data exfiltration, and lateral movement capabilities through compromised wireless infrastructure. The vulnerability affects the core management protocol used by Aruba's wireless solutions, meaning that successful exploitation can compromise entire wireless networks rather than isolated devices. This creates cascading security implications where a single vulnerable access point can serve as an entry point for broader network infiltration, particularly concerning enterprise environments where wireless networks often form the backbone of business operations. The privilege escalation aspect of the vulnerability means that attackers can execute code with system-level privileges, potentially allowing them to install backdoors, modify network configurations, or establish persistent access.
Mitigation strategies for CVE-2023-22781 should prioritize immediate patch application from Aruba, as this represents the most effective defense against the vulnerability. Organizations must also implement network segmentation to isolate wireless infrastructure from critical business systems, particularly by blocking UDP port 8211 traffic at network boundaries where possible. Network monitoring should be enhanced to detect anomalous packet patterns targeting the vulnerable port, and intrusion detection systems should be configured to alert on suspicious PAPI protocol traffic. Additionally, implementing network access control measures and regularly reviewing wireless network configurations can help prevent exploitation attempts. Organizations should also consider disabling the PAPI protocol entirely if it is not required for their specific use cases, as this eliminates the attack surface entirely. The vulnerability highlights the importance of regular security assessments and vulnerability management programs, particularly for critical infrastructure components that handle network protocols without proper authentication mechanisms. Security teams should also prepare incident response procedures specifically addressing wireless network compromise scenarios, given the potential for widespread impact across enterprise environments that rely heavily on wireless infrastructure for operations.