Hi All,
I'm not sure if there's much life in these forums, but wanted to try reaching out anyway. I've got a Q80R (2019) TV. The firmware packages that it uses are marked "MSDU11" which appears to be the next version after MSDU10 discussed here: viewtopic.php?t=6262.
The new header format is more-or-less the same as what robert documented 8 years ago. I've attached "format.txt" which revises his work to reflect the updated format.
The big difference seems to be that the entire payload is bundled up as a single OpenSSL-encrypted block. The header still enumerates a number of subsections, but none of them are visible.
That's where I've run into a brick wall. I'm unable to decrypt using any of the keys found in earlier SamyGo extractors. Not really surprising; why wouldn't Samsung change the key knowing that earlier ones are out there?
If anyone has the key for this firmware, would be great to receive via PM. Alternately, a clean copy of a Q80R firmware dump would be helpful as a start for RE. I'm pretty hardware-savvy but tearing up this TV would not make me popular with the family, so extracting/modifying flash contents is way out. Maybe if there's a smaller, cheaper model with the same key...?
Thanks,
Allen
MSDU11 fw format for Q80R
MSDU11 fw format for Q80R
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Re: MSDU11 fw format for Q80R
This Nov 19th 2021 release from Synacktiv re: Rooting the Q60T appears highly relevant, too. Looks like they're going to release additional info at some point. https://www.synacktiv.com/sites/default ... art_TV.pdf
The original exploit appears to be patched, but... still good info.
The original exploit appears to be patched, but... still good info.
Re: MSDU11 fw format for Q80R
And while I'm sure it's here somewhere, wanted to get this stuff together in a single place:
https://labs.f-secure.com/blog/samsung- ... -smart-tv/
https://labs.f-secure.com/blog/samsung- ... -smart-tv/
Re: MSDU11 fw format for Q80R
Synacktiv is worth investigating, but yeah useless to everybody who doesn't block updates Regarding f-secure it's mostly old stuff, they did some good research but it's not in this pdf
I do NOT support "latest fw" at ALL. If you have one you should block updates on router and wait for it to STOP being "latest":)
If you want me to help you please paste FULL log(s) to "spoiler"/"code" bbcodes or provide link(s) to pasted file(s) on https://pastebin.com Otherwise "NO HELP"!!!
If you want root DISABLE internet access to your device!!!!
DO NOT EVER INSTALL FIRMWARE UPGRADE !!!!
If you want me to help you please paste FULL log(s) to "spoiler"/"code" bbcodes or provide link(s) to pasted file(s) on https://pastebin.com Otherwise "NO HELP"!!!
If you want root DISABLE internet access to your device!!!!
DO NOT EVER INSTALL FIRMWARE UPGRADE !!!!