I have about a dozen EnGenius EAP-1300 access points that I bought used in various batches for cheap. Two of them have unknown passwords set with the factory reset and serial console disabled. The flash is SOIC-16 SPI NOR. I am not having any luck accessing with a Bus Pirate and a test clip. :-(
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Ryan Castellucci :nonbinary_flag: (ryanc@infosec.exchange)'s status on Saturday, 01-Feb-2025 19:46:23 JST Ryan Castellucci :nonbinary_flag:
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Ryan Castellucci :nonbinary_flag: (ryanc@infosec.exchange)'s status on Saturday, 01-Feb-2025 19:49:22 JST Ryan Castellucci :nonbinary_flag:
I've ordered a CH341A programmer, and am ordering some of the same model chip to experiment with. Hopefully that'll help.
One thing I want to do is patch the bootloader to netboot firmware. These things have plenty of RAM.
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Ryan Castellucci :nonbinary_flag: (ryanc@infosec.exchange)'s status on Saturday, 01-Feb-2025 19:50:15 JST Ryan Castellucci :nonbinary_flag:
They use uboot, but the boot command seems to be hard coded so I can't simply configure them to netboot, but it does work if I manually enter the commands on the serial console.
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Ryan Castellucci :nonbinary_flag: (ryanc@infosec.exchange)'s status on Saturday, 01-Feb-2025 20:00:18 JST Ryan Castellucci :nonbinary_flag:
I've also be pondering making a mod chip that connects up to the serial header on the board and just monitors for uboot starting up and then enters the netboot commands automatically, but just patching the suckers would be way easier...
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Ryan Castellucci :nonbinary_flag: (ryanc@infosec.exchange)'s status on Saturday, 01-Feb-2025 20:05:05 JST Ryan Castellucci :nonbinary_flag:
@attie In-situ with power off, and also with the chip removed from the board, though that board was fried.
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Attie Grande (attie@chaos.social)'s status on Saturday, 01-Feb-2025 20:05:07 JST Attie Grande
@ryanc Are you trying to do it in-situ, or did you remove the IC from the board? If it's on the board still, what have you tried? ... e.g: have you tried powering it and holding the main processor in reset (if you can find that signal)
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Ryan Castellucci :nonbinary_flag: (ryanc@infosec.exchange)'s status on Saturday, 01-Feb-2025 20:05:40 JST Ryan Castellucci :nonbinary_flag:
@attie Don't have u-boot console access on two of them that I can't get into, and also I want to experiment with patching u-boot.
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Attie Grande (attie@chaos.social)'s status on Saturday, 01-Feb-2025 20:05:41 JST Attie Grande
@ryanc If you have access to the u-boot console, can you just use that to dump / rewrite the flash?
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Ryan Castellucci :nonbinary_flag: (ryanc@infosec.exchange)'s status on Saturday, 01-Feb-2025 20:18:36 JST Ryan Castellucci :nonbinary_flag:
@attie I should have the other programmer later today, if you wanna help me figure it out live.
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