Diplomat: Using Delegations to Protect Community Repositories
Diplomat: Using Delegations to Protect Community Repositories Trishank Karthik Kuppusamy, Santiago Torres-Arias, Vladimir Diaz, and Justin Cappos, New York University https://www.usenix.org/conference/nsdi16/technical-sessions/presentation/kuppusamy This paper is included in the Proceedings of the 13th USENIX Symposium on Networked Systems Design and Implementation (NSDI ’16). March 16–18, 2016 • Santa Clara, CA, USA ISBN 978-1-931971-29-4 Open access to the Proceedings of the 13th USENIX Symposium on Networked Systems Design and Implementation (NSDI ’16) is sponsored by USENIX. Diplomat: Using Delegations to Protect Community Repositories Trishank Karthik Kuppusamy Santiago Torres-Arias Vladimir Diaz Justin Cappos Tandon School of Engineering, New York University Abstract software. Major repositories run by Adobe, Apache, Debian, Fedora, FreeBSD, Gentoo, GitHub, GNU Sa- Community repositories, such as Docker Hub, PyPI, vannah, Linux, Microsoft, npm, Opera, PHP, RedHat, and RubyGems, are bustling marketplaces that distribute RubyGems, SourceForge, and WordPress repositories software. Even though these repositories use common have all been compromised at least once [4,5,7,27,28,30, software signing techniques (e.g., GPG and TLS), at- 31,35,36,39–41,48,59,61,62,67,70,79,80,82,86,87,90]. tackers can still publish malicious packages after a server For example, a compromised SourceForge repository compromise. This is mainly because a community repos- mirror located in Korea distributed a malicious ver- itory must have immediate access to signing keys in or- sion of phpMyAdmin, a popular database administration der to certify the large number of new projects that are tool [79]. The modified version allowed attackers to gain registered each day.
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