How I got a Root Shell on a Credit Card Terminal

Re:How I got a Root Shell on a Credit Card Terminal by bill_mcgonigle on Sunday June 01, 2025 @01:13PM (#44152323)

What a nice writeup! Just curious - what kind of wire do you use to solder on the pins - enameled?

I wonder if they offer their customers source to keep the Busybox folks happy?

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Re:How I got a Root Shell on a Credit Card Terminal by stgl on Sunday June 01, 2025 @01:18PM (#44152370)

Yes, 0.1 mm diameter enameled copper wire. Chasing GPL violations sounds like a fun hobby :)

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Re:How I got a Root Shell on a Credit Card Terminal by zoobab on Monday June 02, 2025 @03:38AM (#44156501)

I think US based SFLC has budgets if you request it to enforce the GPL.

Pre-OpenWRT days I was maintained a Linux distro ISL3893 that ended up in court in Germany, the first GPL enforcement:

http://isl3893.wikidot.com/

"17 apr 2004 — GPL testing in court by the Netfilter/Iptables team, due to refuse to give source code of the Sitecom WL-122 (isl3893 based!). In the same time, some source code has appeared on the webserver of Sitecom."

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