Remote

Manawyrm

@manawyrm@chaos.social

mastodon 4.6.9

catgirl, in her late 20s

typically touching electronics, computers, networks, ham radio or infrastructure of almost any kind

2694 Followers

1051 Following

50 Posts

Joined September 02, 2018

accept-language:

de-DE,en-US

x-pronouns:

she/her

x-website:

https://kittenlabs.de/

Manawyrm @manawyrm@chaos.social

· 3mo ago

Wrote a driver for osmo-trx to run on the PlutoSDR. PlutoSDR is a relatively inexpensive Zynq (FPGA+ARM) and AD9361 SDR device. It runs Linux and can run smaller applications directly on device. I'm now using it to run a 2G/GSM base station setup. The transceiver runs directly on device, the rest of the network needs to be external. Made possible through 3rd party timestamping FPGA gateware written by Phil Greenland. https://github.com/Manawyrm/osmo-trx-pluto-fw

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Manawyrm @manawyrm@chaos.social

· 4mo ago

Modern PC hardware is real RF voodoo these days: DDR5 runs at 5+ GHz, PCIe 5.0 runs at 16 GHz (!!), networking/SFPs running at 26+ GHz, often using advanced modulation like PAM4. All of those ultra high speed links are doing some form of equalization/link training and their hardware is very often capable of measuring/reporting eye diagrams.

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Manawyrm @manawyrm@chaos.social

· 4mo ago

Replying to

@arch@floofy.tech @aks@scalie.zone "User who executes malware that executes random commands complains about malware doing malware things" [imagine the bicycle with a stick meme here, I can't be bothered to upload one]

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Manawyrm @manawyrm@chaos.social

· 5mo ago

OH: „Midnight Commander macht alles, ich mach damit auch meine Steuererklärung“

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Manawyrm @manawyrm@chaos.social

· 2mo ago

Let's play a game:

Post the oldest image of your "battle station" / computer setup that you have.

Ideally, post some specs of the system if you can remember.

I'll start:

photo from 2003
Pentium II, 350MHz
3DFX Voodoo Banshee
1024x768 17" Eizo CRT
Iomega Zip drive, 100MB via Parallel port (click!)
SCSI Scanner hidden away in the background

I think the Mac was a Power Macintosh 6300, but I'm not 100% sure.

What are yours? :) #retrocomputing

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Manawyrm @manawyrm@chaos.social

· 2w ago

Replying to

@bkastl@mastodon.social @leyrer@23.social Confidential Computing war schon immer eine „Wünsch dir was“-Erfindung der Cloudprovider um ihre Produkte unter Deckmantel an sensible Kunden zu verkaufen. Ja, es erhöht die Angriffskomplexität teilweise (extrem), aber sicher sind solche Systeme dadurch noch lange nicht.

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Manawyrm @manawyrm@chaos.social

· 3mo ago

Replying to

@emilychwiggy@mastodon.art

Buy 150$ box from AliExpress
Install Sarahs firmware
Have your own mobile base station for old phones
Profit??

<3

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@janamarie Faaancy. I wonder how the night sky looks on this?

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@bagder You're correct. They're trying (and failing) to migrate from the custom GitHub infra to Azure. That's why it's so broken.

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@scy@chaos.social Bei quasi jedem deutschen Hoster schließen die AGBs das bereits hart aus, eben weil die Rechtslage so problematisch ist. Eben die fehlende Altersverifikation (gerade bei Hotlinking auf Image-URLs) bringt dich in Teufelsküche.

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@hailey holy shit.

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@derf *hissss*!

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Manawyrm @manawyrm@chaos.social

· 3mo ago

Replying to

@wer@infosec.exchange @Exilsarahl@chaos.social Sorry :) My name is Sarah (and the other person in the thread is also Sarah, which is why this is funny :P) So I mean the firmware I linked up in the first post. On the GitHub releases page there's a download link!

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@bodems@chaos.social Der Kernel lädt leider das Modul automatisch :/ Aber genau, die Konfig in modprobe.d verhindert das dann.

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Boosted by @kkarhan@jorts.horse

Replying to

@whitequark@social.treehouse.systems @arj@social.tchncs.de @ConstellationUnion@infosec.exchange @agowa338@chaos.social look on over at https://github.com/amboar/culvert the iLPC2AHB mechanism is probably what you'd want to poke at.

GitHub - amboar/culvert: A Test and Debug Tool for BMC AHB Interfaces

A Test and Debug Tool for BMC AHB Interfaces. Contribute to amboar/culvert development by creating an account on GitHub.

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Manawyrm @manawyrm@chaos.social

· 6mo ago

Replying to

@jasmin die überlappung mit den anderen beiden shots ist ein bisschen faule Ausrede -- du kannst die auch problemlos rauszögern, hast dann nur bis dahin weniger Schutz. "Nerds nicht mehr reinbeißen" kann ich dir aber leider nicht bestätigen, ich werde immer noch genauso viel gebissen wie vorher :>

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@Exilsarahl@chaos.social Pfötchen (unbekannterweise?) gedrückt!

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@agowa338@chaos.social serial infrared is just an old thing from the 90s related to IrDA (that thing Nokia phones could do to share files, remember?) https://en.wikipedia.org/wiki/IrDA#IrPHY It's a regular UART, but with some special pulse shaping to make the duty cycle of the TX way shorter, so it can be transmitted at high power over an IR LED. it's a feature many UART peripherals just support because they're just copy&pasted/bought as IP blocks from some vendor. not relevant to BMCs at all.

en.wikipedia.org

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@whitequark@social.treehouse.systems @arj@social.tchncs.de @ConstellationUnion@infosec.exchange @agowa338@chaos.social having said that: those AST2400 also have a mechanism called "Debug UART", which is a crazy hardware trick inside the ASIC: if you send a magic password over the UART, the peripheral itself will respond and switch over to some hardcoded (probably 8051) that offers a tiny shell with arbitrary memory read/write primitives for the ARM core. This always works without any code being loaded or config set. so maybe try to find that UART?

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@q Alles ist relativ! :P

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@psy @vollkorn Google und Freunde freuen sich auch immer MTA-STS Records auf solchen Domains zu sehen, etc.

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Manawyrm @manawyrm@chaos.social

· 6mo ago

Replying to

@fluepke @nblr machen die ja nicht nur in Berlin...

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Manawyrm @manawyrm@chaos.social

· 6mo ago

Replying to

@fluepke @nblr die hab ich nicht mitbekommen. ich hab eher gehört, dass jetzt endgültig alle, auch alle private peering sessions rausgeschmissen werden.

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@CrazyIT @waldi @_g_baer_ @daschnott zwar witzig, aber 44kW gleichrichten, auf tausende Ampere bei wenigen Volt runterfummeln, Regelung, Gas auffangen, etc. und halt gigantische Mengen hochexplosivem Gas sind jetzt nicht ganz jedermanns Sache :)

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@_g_baer_ @daschnott 3 Tauchsieder (einen pro Phase) draußen in die Regenwassertonne (oder das Planschebecken) reinhalten und ab geht die Post :PPPPP

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@whitequark@social.treehouse.systems @arj@social.tchncs.de @ConstellationUnion@infosec.exchange @agowa338@chaos.social yes, exactly.

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@vollkorn @hukl das nicht, aber ein bisschen feedback an die Leute, die es sind zu geben, wär vielleicht nicht schlecht? aber ja, leider ist email immer so nervig :(

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@psy @vollkorn doch, ich mein schon Message-ID, bei mir hat die Mail: Message-ID: <177456426487.3293.16808425168573055662@officium>

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Manawyrm @manawyrm@chaos.social

· 6mo ago

Replying to

@xenia @jasmin https://www.rki.de/SharedDocs/FAQs/DE/Impfen/FSME-Impfung/FSME-Impfung.html#entry_16870252

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Manawyrm @manawyrm@chaos.social

· 6mo ago

Replying to

@jik@federate.social @zackwhittaker@mastodon.social Weeeelll, that's a bit too much panic! Yes, the machines might not boot anymore, but the data is still there. It can still be read on a normal Linux Live-ISO just fine.

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Manawyrm @manawyrm@chaos.social

· 4mo ago

Replying to

@CannaParts@nrw.social Hui — definitiv. Hast du ne grobe Preisvorstellung? Und dann, weil man solche seltenen Schmuckstücke lieber nicht versenden sollte, wo genau in NRW findet man dich? (gerne weiteres per PM)

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@theresnotime@fox.nexus that depends on the medication.

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@themaritimegirl Depends on the schematic, so yeah, have some folks look over it. I'd probably swap it out for a 330nF tantalum, which is hopefully fine, but... yeah, worth a closer look for sure.

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@kasperd @penguin42 @q3k Until a new kernel is installed, yes.

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@Kurorori@chaos.social 😻

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@tyalie@chaos.social Someone needs to convert that vuln into static binaries for all the target platforms (and/or maybe a sh script if possible) :D but yeah, it's nasty xD

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@jn@boopsnoot.de @tyalie@chaos.social apparently the exploit doesn‘t work on android from what i‘ve seen, but that might just be a side effect. openwrt is affected…

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@ubernauten 🙈

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@alsternerd FTFY: Wenn ihr Transcend [...] Karten [...] habt: Die fangen jetzt an mit sterben. 😹

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@chrisstoecker@mastodon.social Erstmal Tauchsieder mit CEE63 Anschluss basteln und die Regenwassertonne aufkochen 😹

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@dentaku@fnordon.de @chrisstoecker@mastodon.social oder wie wär's mit ner kleinen Gartenbeleuchtung? http://youtu.be/LT5_-A0m8_U?t=633

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@whitequark@social.treehouse.systems @arj@social.tchncs.de @ConstellationUnion@infosec.exchange @agowa338@chaos.social some stupid board vendors label this port as "DEBUG JTAG" for reasons unknown to me, but it's still just a UART.

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@digitalkrampus that's way too broad of a question :) what type of 5.25" floppy? what do you want to do/accomplish? photos please!

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@freya @NikTheDusky *wub* *wub* *wub* it was soo much fun :3

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@penguin42 @q3k initcall_blacklist will probably help you in that case (haven't tried that yet, YMMV)

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Manawyrm @manawyrm@chaos.social

· 6mo ago

Replying to

@jeffcodes @gsuberland @azonenberg @jik @zackwhittaker You're absolutely right and will get no argument from me there. I have always supported people encrypting their drives and will give support to people trying to do that. Still, VeraCrypt is just a very fragile piece of kit and users need to know that and be able to either fix it themselves or know someone who can do it. Telling just random people on the streets to install it will indeed just block access to their data -- even without MS.

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Manawyrm @manawyrm@chaos.social

· 2mo ago

Replying to

@azonenberg@ioc.exchange Neat!! Yeah, I think this was the first digital photo I have, or at least it's the first one I have as a JPEG (those Kodak Photo CDs were a thing back then).

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Manawyrm @manawyrm@chaos.social

· 5mo ago

Replying to

@waldi @_g_baer_ @daschnott Kann man ganz schnell ändern :) Die Stadtkinder könnten 4 große Töpfe Wasser aufsetzen, zum Kochen bringen, weggießen, repeat :P

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Manawyrm @manawyrm@chaos.social

· 6mo ago

Replying to

@jeffcodes @gsuberland @azonenberg @jik @zackwhittaker I'm very sorry, but users that aren't capable of getting help with recovering such data from someone that can handle a Linux Live ISO shouldn't be using VeraCrypt to begin with. It's extremely likely to just cause your system to stop booting (and that has happened to me 5+ times in the years I was using it) -- it's just a regular occurance and you'll need to deal with these things as a user.

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