CVE-2022-35779 in Azure Real Time Operating System GUIX Studio
Summary
by MITRE • 08/10/2022
Azure RTOS GUIX Studio Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2022-30175, CVE-2022-30176, CVE-2022-34687, CVE-2022-35773, CVE-2022-35806.
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Analysis
by VulDB Data Team • 05/29/2025
The Azure RTOS GUIX Studio remote code execution vulnerability represents a critical security flaw in Microsoft's embedded graphics development environment that affects developers working with real-time operating systems. This vulnerability specifically targets the GUIX Studio component used for creating graphical user interfaces in embedded applications running on Azure RTOS platforms. The flaw exists within the software's handling of certain input data structures during the design and compilation process, creating a pathway for remote attackers to execute arbitrary code on systems where GUIX Studio is installed. The vulnerability impacts developers who use the tool for creating user interfaces for IoT devices, industrial control systems, and other embedded applications that rely on Azure RTOS for their operation.
The technical implementation of this vulnerability stems from insufficient input validation and memory management practices within GUIX Studio's processing pipeline. When the software processes certain malformed or specially crafted design files, it fails to properly validate the data structures, leading to buffer overflows or memory corruption conditions that can be exploited by malicious actors. This flaw operates at the application level within the GUIX Studio environment, requiring an attacker to either gain access to a developer's workstation or to trick a developer into opening a malicious project file. The vulnerability is particularly concerning because it exists in the development toolchain rather than in the deployed embedded systems, meaning that compromise of the development environment can lead to broader supply chain security issues.
The operational impact of this vulnerability extends beyond immediate code execution capabilities to encompass potential supply chain compromise and development environment infiltration. Attackers who successfully exploit this vulnerability can gain full control over development workstations running GUIX Studio, potentially accessing sensitive project files, source code repositories, and other intellectual property. The attack surface is particularly broad given that GUIX Studio is used across various industries including automotive, industrial automation, medical devices, and consumer electronics where embedded systems are prevalent. Security researchers have noted that the vulnerability's exploitation requires minimal privileges and can be accomplished through social engineering tactics targeting developers or by compromising software distribution channels.
Organizations should implement immediate mitigations including restricting access to GUIX Studio installations, implementing strict software update policies, and conducting regular security assessments of development environments. Microsoft has released patches for this vulnerability that should be applied immediately across all affected systems, with the company recommending that organizations review their software supply chain processes to prevent distribution of malicious project files. Network segmentation and access controls should be strengthened around development environments, and developers should be trained to recognize potential social engineering attempts. The vulnerability aligns with CWE-121 and CWE-122 categories related to buffer overflow conditions, and its exploitation techniques map to ATT&CK tactics including initial access through malicious file delivery and execution through development environment compromise. Organizations should also consider implementing software composition analysis tools to monitor for vulnerable components in their development toolchains and maintain comprehensive incident response procedures for potential exploitation attempts.