CVE-2022-28811 in UWP
Summary
by MITRE • 09/28/2022
In Carlo Gavazzi UWP3.0 in multiple versions and CPY Car Park Server in Version 2.8.3 a remote, unauthenticated attacker could utilize an improper input validation on an API-submitted parameter to execute arbitrary OS commands.
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Analysis
by VulDB Data Team • 09/28/2022
The vulnerability identified as CVE-2022-28811 affects Carlo Gavazzi UWP3.0 and CPY Car Park Server versions including 2.8.3, representing a critical remote command execution flaw that allows unauthenticated attackers to compromise affected systems. This vulnerability stems from inadequate input validation within the application programming interface of these industrial control systems, specifically targeting API-submitted parameters that are not properly sanitized or validated before processing. The flaw exists in the way these systems handle user-supplied data, creating a pathway for malicious actors to inject and execute arbitrary operating system commands directly on the affected servers.
The technical implementation of this vulnerability aligns with CWE-77 and CWE-94 categories, which specifically address improper input validation and code injection flaws respectively. Attackers can exploit this weakness by submitting maliciously crafted parameters through the API endpoints, bypassing authentication mechanisms entirely due to the lack of proper access controls. The vulnerability demonstrates characteristics consistent with the attack pattern described in MITRE ATT&CK technique T1059.001 for command and scripting interpreter, where adversaries leverage system interfaces to execute commands. The absence of input sanitization allows attackers to inject operating system commands that are then executed with the privileges of the application process, potentially leading to complete system compromise.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it enables attackers to perform actions such as data exfiltration, system modification, service disruption, and lateral movement within network environments. Industrial control systems like those manufactured by Carlo Gavazzi are critical infrastructure components that manage physical processes, making this vulnerability particularly dangerous as it could potentially disrupt operations, compromise safety systems, or enable attackers to manipulate physical processes. The unauthenticated nature of the attack means that no credentials are required to exploit the vulnerability, significantly increasing the attack surface and reducing the barrier for potential exploitation.
Organizations utilizing affected systems should immediately implement network segmentation to isolate these industrial control systems from general network access, deploy web application firewalls to monitor and filter API traffic, and apply vendor-provided patches or firmware updates as soon as they become available. System administrators should also conduct thorough network monitoring to detect anomalous API traffic patterns that might indicate exploitation attempts. The vulnerability highlights the importance of secure coding practices and input validation in industrial environments where the consequences of exploitation can extend beyond traditional data breaches to include physical safety and operational integrity risks. Additionally, implementing principle of least privilege for API access and regular security assessments of industrial control systems can help mitigate similar vulnerabilities in the future.