Characterizing Trust Boundary Vulnerabilities in TEE Containers

• URL: http://arxiv.org/abs/2508.20962v1
• Date: Thu, 28 Aug 2025 16:20:08 GMT
• Title: Characterizing Trust Boundary Vulnerabilities in TEE Containers
• Authors: Weijie Liu, Hongbo Chen, Shuo Huai, Zhen Xu, Wenhao Wang, Zhi Li, Zheli Liu,
• Abstract summary: Trusted Execution Environments (TEEs) have emerged as a cornerstone of confidential computing.<n>TEE containers aim to shield applications from potentially malicious operating systems and orchestration interfaces.<n>In this paper, we analyze the isolation strategies employed by existing TEE containers to protect secure applications.
• Score: 20.56537078889067
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Trusted Execution Environments (TEEs) have emerged as a cornerstone of confidential computing, garnering significant attention from both academia and industry. To enable the secure development, execution, and deployment, of applications on TEE platforms, TEE containers have been introduced as middleware solutions. These containers aim to shield applications from potentially malicious operating systems and orchestration interfaces while maintaining usability and reliability. In this paper, we analyze the isolation strategies employed by existing TEE containers to protect secure applications. To address the challenges in analyzing these interfaces, we designed an automated analyzer to precisely identify and evaluate their isolation boundaries. We observed that some TEE containers fail to achieve their intended goals due to critical design and implementation flaws, such as information leakage, rollback attacks, denial-of-service, and Iago attacks, which pose significant security risks. Drawing from our findings, we share key lessons to guide the development of more secure container solutions and discuss emerging trends in TEE containerization design.

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