CVE-2022-48472 in BiSheng-WNM
Summary
by MITRE • 06/16/2023
A Huawei printer has a system command injection vulnerability. Successful exploitation could lead to remote code execution. Affected product versions include:BiSheng-WNM versions OTA-BiSheng-FW-2.0.0.211-beta,BiSheng-WNM FW 3.0.0.325,BiSheng-WNM FW 2.0.0.211.
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Analysis
by VulDB Data Team • 12/17/2024
The CVE-2022-48472 vulnerability represents a critical system command injection flaw discovered in Huawei printer models, specifically within the BiSheng-WNM product line. This vulnerability resides in the firmware versions OTA-BiSheng-FW-2.0.0.211-beta, BiSheng-WNM FW 3.0.0.325, and BiSheng-WNM FW 2.0.0.211, making these affected systems susceptible to remote code execution attacks. The flaw stems from inadequate input validation mechanisms within the printer's web interface and network management protocols, which fail to properly sanitize user-supplied data before processing system commands.
The technical implementation of this vulnerability allows attackers to inject malicious commands through improperly validated parameters in network requests. When a user submits crafted input through the printer's web administration interface or network management protocols, the system processes these inputs without adequate sanitization, leading to arbitrary command execution on the affected device. This command injection occurs at the system level, bypassing standard authentication mechanisms and potentially granting attackers full control over the printer's operating system. The vulnerability aligns with CWE-77 which describes improper neutralization of special elements used in system commands, and represents a significant weakness in the printer's input validation and output encoding controls.
From an operational perspective, this vulnerability presents a severe risk to enterprise network security as it enables remote attackers to execute arbitrary code on affected printers without requiring physical access or legitimate credentials. Attackers could leverage this vulnerability to establish persistent backdoors, exfiltrate sensitive data, or use compromised printers as launching points for further attacks within the network. The impact extends beyond individual device compromise, potentially allowing attackers to disrupt printing services, access network resources, or use the printers as pivoting points for lateral movement. According to ATT&CK framework, this vulnerability maps to T1059.007 for command and script interpreter and T1071.004 for application layer protocols, demonstrating the multi-faceted attack vectors available through this flaw.
Organizations should immediately implement network segmentation to isolate affected printer devices from critical network segments, deploy network monitoring solutions to detect anomalous command execution patterns, and ensure firmware updates are applied as soon as patches become available from Huawei. The vulnerability requires immediate remediation through firmware upgrades, as no effective workarounds exist for this type of command injection flaw. Security teams should also consider implementing network access controls to restrict administrative access to printer management interfaces, monitor for suspicious network traffic patterns, and establish incident response procedures for potential exploitation attempts. The risk assessment should include evaluating the potential for attackers to use compromised printers for data exfiltration or as part of broader network infiltration campaigns.