The title uses the term "supply chain" but it appears nowhere in the blog post. I keep seeing this term used by "cybersecurity" researchers and software developers in ways that seem to differ from the definition I learned in school. .
From Wikipedia:
"A supply chain is a complex logistics system that consists of facilities that convert raw materials into finished products and distribute them^[1] to end consumers^[2] or end customers.^[3]"
1. ^ Ganeshan, R. and Harrison, T. P., An Introduction to Supply Chain Management, updated 22 May 2005, accessed 29 June 2023
2. ^ ^a ^b Ghiani, Gianpaolo; Laporte, Gilbert; Musmanno, Roberto (2004). Introduction to Logistics Systems Planning and Control. John Wiley & Sons. pp. 3-4. ISBN 9780470849170. Retrieved 8 January 2023.
3. ^ ^a ^b ^c Harrison, A. and Godsell, J. (2003), Responsive Supply Chains: An Exploratory Study of Performance Management, Cranfield School of Management, accessed 12 May 2021
Was https://sysupgrade.openwrt.org set up for commercial suppliers of OpenWRT. How about https://firmware-selector.openwrt.orgI always assumed commercial suppliers compiled from source to add their own modifications, and then created their own images.
As a consumer of OpenWRT, I compile from source or use "official" images.
The device updates can be supplied by a supplying service. The device (and its user as the end consumer) is not attacked directly but through its update supply chain. This is why it's called supply chain attack.
When somebody intercepts your Christmas presents to add a bomb to your new pager, it is also a supply chain attack. Even if you use the pager for work and the bomb targets your business partner. If somebody throws the bomb directly at the target it is not a supply chain attack.
Supply chains are often less secured than direct attack vectors.