CVE-2023-32560 in Wavelink Avalanche Manager
Summary
by MITRE • 08/10/2023
An attacker can send a specially crafted message to the Wavelink Avalanche Manager, which could result in service disruption or arbitrary code execution.
Thanks to a Researcher at Tenable for finding and reporting.
Fixed in version 6.4.1.
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Analysis
by VulDB Data Team • 01/04/2025
The vulnerability identified as CVE-2023-32560 represents a critical security flaw within the Wavelink Avalanche Manager software ecosystem. This remote code execution vulnerability arises from insufficient input validation mechanisms within the message processing framework of the application. The flaw allows malicious actors to craft and transmit specially formatted messages that can trigger unexpected behavior within the target system. Such vulnerabilities are particularly dangerous because they can be exploited over network connections without requiring any authentication or prior access to the system. The Wavelink Avalanche Manager serves as a centralized management platform for wireless network infrastructure, making it an attractive target for attackers seeking to compromise network operations and gain unauthorized access to connected devices. The vulnerability specifically affects versions prior to 6.4.1, indicating that the software vendor has acknowledged and addressed the issue through a targeted patch release.
The technical exploitation of this vulnerability stems from improper sanitization and validation of incoming message data within the application's communication layer. When the Wavelink Avalanche Manager processes these crafted messages, the system fails to adequately validate the message content, allowing malicious payloads to bypass normal security checks and execute within the application context. This type of vulnerability typically falls under CWE-20, which encompasses improper input validation, a fundamental weakness in software security architecture. The attack surface is particularly concerning given that the vulnerability enables arbitrary code execution, meaning an attacker could potentially install malware, modify system configurations, or establish persistent access to the compromised environment. The nature of the flaw suggests that the application's message parser does not properly handle malformed or unexpected input sequences, creating a pathway for code injection attacks that could be leveraged to escalate privileges or gain deeper system access.
The operational impact of CVE-2023-32560 extends beyond simple service disruption to encompass serious security compromise scenarios that could affect entire network infrastructures. Organizations relying on Wavelink Avalanche Manager for wireless network management face potential risks including unauthorized access to sensitive network configurations, data exfiltration from connected devices, and disruption of critical network services. The vulnerability's remote exploitability means that attackers can target systems from external networks without requiring physical access or insider knowledge. This makes the attack vector particularly dangerous for organizations with exposed management interfaces or those operating without proper network segmentation. The potential for arbitrary code execution creates scenarios where attackers could deploy additional malicious tools, establish backdoors, or use the compromised system as a pivot point for attacking other network segments. From an operational standpoint, this vulnerability could lead to extended downtime, regulatory compliance issues, and significant financial losses due to potential data breaches or service interruptions.
Organizations should immediately implement mitigation strategies to protect against exploitation of CVE-2023-32560. The primary and most effective mitigation involves upgrading to Wavelink Avalanche Manager version 6.4.1 or later, which contains the necessary security patches to address the vulnerability. Network administrators should also consider implementing additional protective measures including network segmentation to limit access to the management interface, deploying intrusion detection systems to monitor for suspicious message patterns, and establishing strict access controls for the application. The vulnerability demonstrates the importance of maintaining current security patches and following the principle of least privilege when configuring management interfaces. Organizations should also conduct thorough security assessments of their wireless network infrastructure to identify any other systems that might be vulnerable to similar attack vectors. From an ATT&CK framework perspective, this vulnerability aligns with techniques such as T1203 (Exploitation for Client Execution) and T1059 (Command and Scripting Interpreter), as it allows for remote code execution and potential system command injection. The remediation process should include monitoring for any signs of exploitation attempts and implementing proper logging mechanisms to track message processing activities. Regular security audits and vulnerability assessments should be conducted to ensure that similar flaws are identified and addressed proactively before they can be exploited by malicious actors.