CVE-2022-2323 in Switch
Summary
by MITRE • 07/30/2022
Improper neutralization of special elements used in a user input allows an authenticated malicious user to perform remote code execution in the host system. This vulnerability impacts SonicWall Switch 1.1.1.0-2s and earlier versions
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 08/28/2022
This vulnerability represents a critical security flaw in SonicWall network switching equipment affecting versions 1.1.1.0-2s and earlier. The issue stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before processing. An authenticated attacker with access to the system can exploit this weakness to inject malicious code that executes with the privileges of the host system, potentially leading to complete system compromise. The vulnerability specifically targets the handling of special elements within user input streams, creating a pathway for remote code execution that bypasses normal security controls.
The technical implementation of this flaw demonstrates a classic improper input neutralization issue that aligns with CWE-74 standards for improper neutralization of special elements. The vulnerability operates through a command injection vector where malicious input containing special characters or sequences is not properly escaped or filtered before being processed by the system's underlying components. This allows attackers to manipulate system commands and execute arbitrary code on the target host, effectively undermining the integrity and confidentiality of the network infrastructure.
From an operational impact perspective, this vulnerability poses significant risk to enterprise network security infrastructure as SonicWall switches serve as critical network boundary devices. An authenticated attacker could leverage this weakness to gain persistent access to network segments, potentially enabling lateral movement throughout the organization's network. The remote code execution capability means that attackers do not require physical access or additional attack vectors to exploit this vulnerability, making it particularly dangerous in environments where network switches are accessible to unauthorized users.
The attack surface for this vulnerability extends beyond simple code execution to include potential privilege escalation and data exfiltration capabilities. Organizations using affected SonicWall switch versions face substantial risk of unauthorized network access, especially in environments where default administrative credentials remain unchanged or where insufficient network segmentation exists. The vulnerability's impact is amplified by the fact that it affects network infrastructure devices that typically operate with elevated privileges and have direct access to critical network traffic flows.
Security mitigations for this vulnerability should prioritize immediate patching of affected SonicWall switch firmware to the latest available versions that address the input sanitization flaws. Network administrators should implement strict access controls and authentication mechanisms to limit the number of authenticated users with access to the switch management interfaces. Additionally, organizations should consider network segmentation strategies that isolate critical network infrastructure from general network access and implement monitoring solutions that can detect anomalous command execution patterns. The remediation process should also include comprehensive vulnerability assessments of all network switching equipment to identify similar weaknesses in other network infrastructure components, aligning with best practices from the mitre ATT&CK framework for network infrastructure attacks. Organizations should also establish incident response procedures that account for potential compromise of network switching equipment, as these devices often serve as primary attack vectors for advanced persistent threats targeting network infrastructure.