CVE-2022-33192 in iota All-In-One Security Kit
Summary
by MITRE • 10/25/2022
Four OS command injection vulnerabilities exist in the XCMD testWifiAP functionality of Abode Systems, Inc. iota All-In-One Security Kit 6.9X and 6.9Z. A XCMD can lead to arbitrary command execution. An attacker can send a sequence of malicious commands to trigger these vulnerabilities.This vulnerability specifically focuses on the unsafe use of the `WL_SSID` and `WL_SSID_HEX` configuration values in the function at offset `0x1c7d28` of firmware 6.9Z.
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Analysis
by VulDB Data Team • 11/25/2022
The CVE-2022-33192 vulnerability represents a critical command injection flaw within the Abode Systems iota All-In-One Security Kit firmware versions 6.9X and 6.9Z. This vulnerability resides in the XCMD testWifiAP functionality, which serves as a network configuration interface for wireless access point testing. The flaw stems from improper input validation and sanitization of user-supplied parameters, specifically targeting the WL_SSID and WL_SSID_HEX configuration values that are processed within the firmware's memory at offset 0x1c7d28. The vulnerability classification aligns with CWE-77 and CWE-88, which address command injection weaknesses in software systems where external inputs are directly incorporated into system commands without proper sanitization. This particular implementation flaw allows attackers to execute arbitrary commands on the affected device by manipulating the wireless network configuration parameters.
The technical exploitation of this vulnerability occurs through the unsafe handling of wireless network identifiers during the testWifiAP function execution. When an attacker crafts malicious input for the WL_SSID or WL_SSID_HEX parameters, the firmware fails to properly validate or escape these values before incorporating them into system commands. This creates a direct pathway for command injection attacks where attacker-controlled input can be interpreted as executable commands by the underlying operating system. The vulnerability's impact is amplified by the fact that these parameters are processed within the firmware's privileged execution context, potentially allowing full system compromise. The specific offset 0x1c7d28 in firmware 6.9Z represents a critical code location where the insecure command construction occurs, making this vulnerability particularly targeted for exploitation.
The operational implications of CVE-2022-33192 extend beyond simple command execution to encompass complete system compromise of the security kit. An attacker who successfully exploits this vulnerability can gain unauthorized access to the device's underlying operating system, potentially enabling them to modify network configurations, install malicious software, or exfiltrate sensitive data. The vulnerability's presence in a security device fundamentally undermines its protective capabilities, as the attacker could potentially disable security features, create backdoors, or use the device as a pivot point for attacking other networked systems. This type of vulnerability directly violates security principles outlined in the MITRE ATT&CK framework under the T1059 technique category, specifically targeting command and scripting interpreters to gain access to system resources.
Mitigation strategies for CVE-2022-33192 should prioritize immediate firmware updates from Abode Systems, as this vulnerability requires core firmware modifications to properly sanitize input parameters. Network administrators should implement strict access controls and monitoring of wireless network configurations to detect anomalous parameter usage that might indicate exploitation attempts. The vulnerability's nature suggests that any implementation should follow secure coding practices as recommended by OWASP and NIST guidelines, particularly focusing on input validation and command construction sanitization. Organizations should also consider network segmentation and intrusion detection systems to monitor for suspicious command execution patterns. The remediation process must address the root cause by ensuring that all user-supplied parameters are properly validated and escaped before being incorporated into system commands, implementing proper input sanitization at multiple layers of the application stack to prevent similar vulnerabilities from emerging in future versions.