@phdthesis{Lipke2017, type = {Master Thesis}, author = {Simon Lipke}, title = {Building a Secure Software Supply Chain}, url = {https://nbn-resolving.org/urn:nbn:de:bsz:900-opus4-63214}, pages = {113}, year = {2017}, abstract = {Nowadays more and more companies use agile software development to build software in short release cycles. Monolithic applications are split into microservices, which can independently be maintained and deployed by agile teams. Modern platforms like Docker support this process. Docker offers services to containerize such services and orchestrate them in a container cluster. A software supply chain is the umbrella term for the process of developing, automated building and testing, as well as deploying a complete application. By combining a software supply chain and Docker, those processes can be automated in standardized environments. Since Docker is a young technology and software supply chains are critical processes in organizations, security needs to be reviewed. In this work a software supply chain based on Docker is built and a threat modeling process is used to assess its security. The main components are modeled and threats are identified using STRIDE. Afterwards risks are calculated and methods to secure the software supply chain based on security objectives confidentiality, integrity and availability are discussed. As a result, some components require special treatments in security context since they have a high residual risk of being targeted by an attacker. This work can be used as basis to build and secure the main components of a software supply chain. However additional components such as logging, monitoring as well as integration into existing business processes need to be reviewed.}, language = {en} }