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infernal machines
Oct 11, 2012

we monitor many frequencies. we listen always. came a voice, out of the babel of tongues, speaking to us. it played us a mighty dub.
the only downside is modern drives have tiny magnets compared to the old ide drives. real old school mfm drives had magnets that could break fingers.

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surebet
Jan 10, 2013

avatar
specialist


Lain Iwakura posted:

i plan to plastidip the magnets so i figured this was going to be fun. i'll probably keep the platters for something later. the rest can be trashed

if you're scrounging for components this is fine, but doing this kind of work at scale is going to be crazy labor intensive

i forget who i did business with in montreal (maybe shred-it or iron mountain, not sure), but they had a big ol' truck that would show up a couple times a year and destroy documents and media on site (because i didn't want to trust a third party chain of custody for client financial info and also chucking whole banker boxes in a gently caress off huge shredder is kinda fun) and they absolutely destroyed hard drives

might not make sense just to dispose of small assets like only hard drives, but i'm sure your buddies down in accounting have a bunch of stuff to destroy that they're probably just putting in their recycling bins

pretty much any medium sized office or above generates enough confidential crap to justify the $10/box or $100/bin they charge and it's a great talking point to open up a conversation about larger physical sec issues

maskenfreiheit
Dec 30, 2004
comedy option: download some dank leaks and gchq will do it for you

https://www.theguardian.com/uk-news/2014/jan/31/footage-released-guardian-editors-snowden-hard-drives-gchq?CMP=Share_iOSApp_Other

Jimmy Carter
Nov 3, 2005

THIS MOTHERDUCKER
FLIES IN STYLE

maskenfreiheit posted:

would this even count as insider trading? does a vuln count as publicly available information if anyone can find it? 🤔

There was a guy who thought "hmmm Lumber Liquidators is probably so cheap they're buying their product from China where they cut corners", bought a bunch, had it tested, found it was way over the legal limit for formaldehyde, shorted it, and then made an article about it on Motley Fool. Completely legal.

Phone
Jul 30, 2005

親子丼をほしい。
the first thing i had to do working helldesk was find a vendor to dispose of hard drives

i think my boss was expecting a shredder, but whichever company came had a little electronic press that would just bend the platter in one spot. works for me. vOv

Shame Boy
Mar 2, 2010

Phone posted:

the first thing i had to do working helldesk was find a vendor to dispose of hard drives

i think my boss was expecting a shredder, but whichever company came had a little electronic press that would just bend the platter in one spot. works for me. vOv

just use this famous youtube machine

https://www.youtube.com/watch?v=ibEdgQJEdTA

Cocoa Crispies
Jul 20, 2001

Vehicular Manslaughter!

Pillbug

but what if the auditors or whatever your threat is have one of these?

https://www.youtube.com/watch?v=OHyygU1cU0k

Shame Boy
Mar 2, 2010

also re: harddrive magnets, the ones i got out of some old hard drives had convenient holes in the mounting brackets on either side of them so i used some screws to attach them to the side of my workbench and i can hang small to medium size tools from them now, it's real handy

surebet
Jan 10, 2013

avatar
specialist


while we're on the subject, is ram disposal still a thing? we try to donate our old towers (which aren't overly powerful but are still miles ahead of the usual stuff they'd get from gov't surplus, i think we're surplussing gen 2/3 i5 boxes now) to local orgs and we're pulling drives and memory; drives i get but memory?

maskenfreiheit
Dec 30, 2004

Jimmy Carter posted:

There was a guy who thought "hmmm Lumber Liquidators is probably so cheap they're buying their product from China where they cut corners", bought a bunch, had it tested, found it was way over the legal limit for formaldehyde, shorted it, and then made an article about it on Motley Fool. Completely legal.

now that's a hack 👍

Cocoa Crispies
Jul 20, 2001

Vehicular Manslaughter!

Pillbug

surebet posted:

while we're on the subject, is ram disposal still a thing? we try to donate our old towers (which aren't overly powerful but are still miles ahead of the usual stuff they'd get from gov't surplus, i think we're surplussing gen 2/3 i5 boxes now) to local orgs and we're pulling drives and memory; drives i get but memory?

isn't the whole freezing ram thing related to a ram behavior that allows what it holds most of the time to influence the state it defaults to?

surebet
Jan 10, 2013

avatar
specialist


counterpoint: our surplus stuff spends at least a few months in a locker somewhere, powered off

i'm like 90% sure there's a pretty short window where which data can be recovered via freezing, iirc you need to dunk the chips while the system is on or very recently powered off

vOv
Feb 8, 2014

i seem to remember hearing about some company or government agency requiring that even ethernet cables be destroyed

SeaborneClink
Aug 27, 2010

MAWP... MAWP!
https://www.nomotion.net/blog/sharknatto/

Who wants to play secfuck bingo?

ssh open to 0.0.0.0/0 & hardcoded super user creds
more hard coded, emtpy, admin creds
GET requests for information chained to cgi exploits

Raluek
Nov 3, 2006

WUT.

vOv posted:

i seem to remember hearing about some company or government agency requiring that even ethernet cables be destroyed

i believe this is true if they have ever passed classified data. anything that touches classified stuff gets destroyed

Cocoa Crispies
Jul 20, 2001

Vehicular Manslaughter!

Pillbug

Raluek posted:

i believe this is true if they have ever passed classified data. anything that touches classified stuff gets destroyed

yeah and in that case it's just because destroying all of it is an easy policy even if it seems wasteful

maskenfreiheit
Dec 30, 2004
https://twitter.com/bcrypt/status/903477987214950401

:captainpop:

geonetix
Mar 6, 2011


These online coding interview or playground things are great. I got poked by someone today how Skype's new "interview" feature runs any and all code you throw in. including Python's os.system..

is there a way at all to protect yourself from abuse there? or whats the idea

cinci zoo sniper
Mar 15, 2013




geonetix posted:

These online coding interview or playground things are great. I got poked by someone today how Skype's new "interview" feature runs any and all code you throw in. including Python's os.system..

is there a way at all to protect yourself from abuse there? or whats the idea

:stonklol:

geonetix
Mar 6, 2011


the urge to touch poop is high, but I suggest you don't

ymgve
Jan 2, 2004


:dukedog:
Offensive Clock

why are phones even allowed inside the viewing stations

pr0zac
Jan 18, 2004

~*lukecagefan69*~


Pillbug

geonetix posted:

These online coding interview or playground things are great. I got poked by someone today how Skype's new "interview" feature runs any and all code you throw in. including Python's os.system..

is there a way at all to protect yourself from abuse there? or whats the idea

Every one I've looked into has run on spun up then destroyed vm instances with locked down settings in dmzed network areas. You'd need a hypervisor escape to exploit and would still basically be outside the network after that.

geonetix
Mar 6, 2011


pr0zac posted:

Every one I've looked into has run on spun up then destroyed vm instances with locked down settings in dmzed network areas. You'd need a hypervisor escape to exploit and would still basically be outside the network after that.

i have a feeling these are running in containers rather than vms though, and those are probably (still) easier to escape from if you can do syscalls on the hosting kernel... but again I'm not going to try and prove any of that

Jewel
May 2, 2009

geonetix posted:

i have a feeling these are running in containers rather than vms though, and those are probably (still) easier to escape from if you can do syscalls on the hosting kernel... but again I'm not going to try and prove any of that

I was going to say "why not, it's not like they're going to crack down on you for testing against yourself, and they have a bug bounty program", but while the former is true, weirdly skype isn't on their bug bounty software list so leave them to wallow I guess.

duTrieux.
Oct 9, 2003

Jimmy Carter posted:

There was a guy who thought "hmmm Lumber Liquidators is probably so cheap they're buying their product from China where they cut corners", bought a bunch, had it tested, found it was way over the legal limit for formaldehyde, shorted it, and then made an article about it on Motley Fool. Completely legal.

fuckin nice

Migishu
Oct 22, 2005

I'll eat your fucking eyeballs if you're not careful

Grimey Drawer

Jimmy Carter posted:

There was a guy who thought "hmmm Lumber Liquidators is probably so cheap they're buying their product from China where they cut corners", bought a bunch, had it tested, found it was way over the legal limit for formaldehyde, shorted it, and then made an article about it on Motley Fool. Completely legal.

https://www.fool.com/investing/general/2013/06/25/why-im-selling-my-lumber-liquidators-shares.aspx

Article for anyone that cares

burning swine
May 26, 2004



yet another wide open s3 bucket fuckup

http://gizmodo.com/millions-of-time-warner-customer-records-exposed-in-thi-1798701579

quote:

Roughly four million records containing the personal details of Time Warner Cable (TWC) customers were discovered stored on an Amazon server without a password late last month.

The files, more than 600GB in size, were discovered on August 24 by the Kromtech Security Center while its researchers were investigating an unrelated data breach at World Wrestling Entertainment. Two Amazon S3 buckets were eventually found and linked to BroadSoft, a global communications company that partners with service providers, including AT&T and TWC.

[...]

The leaked data included usernames, emails addresses, MAC addresses, device serial numbers, and financial transaction information—though it does not appear that any Social Security numbers or credit card information was exposed.


lol

There Will Be Penalty
May 18, 2002

Makes a great pet!
s3 bucket? more like, s3 fuckit! :newlol:

maskenfreiheit
Dec 30, 2004
has someone made some sort of tool to look for that sort of thing? i smell a defcon talk!

Wiggly Wayne DDS
Sep 11, 2010



as fun as randomly poking at s3 buckets is i want to say you don't want to incur liability by providing tools to make processing them in bulk easier

doesn't make the target painted on multiple researchers backs any smaller when they publicly disclose them mind you

maskenfreiheit
Dec 30, 2004

Wiggly Wayne DDS posted:

as fun as randomly poking at s3 buckets is i want to say you don't want to incur liability by providing tools to make processing them in bulk easier

doesn't make the target painted on multiple researchers backs any smaller when they publicly disclose them mind you

uh there's zero liability for creating a tool

if someone uses hydra to brute force a pw that's on them. similar logic

Lain Iwakura
Aug 5, 2004

The body exists only to verify one's own existence.

Taco Defender

Wiggly Wayne DDS posted:

as fun as randomly poking at s3 buckets is i want to say you don't want to incur liability by providing tools to make processing them in bulk easier

doesn't make the target painted on multiple researchers backs any smaller when they publicly disclose them mind you

partly the reason why i have never really released canario's tools out to the public

Volmarias
Dec 31, 2002

EMAIL... THE INTERNET... SEARCH ENGINES...

maskenfreiheit posted:

uh there's zero liability for creating a tool

Didn't malware_researcher or whatever his handle is get arrested by the FBI for ostensibly that very reason?

Wiggly Wayne DDS
Sep 11, 2010



the jury's still out

i will note that liability is also on the ability of clientele of s3 buckets for large data storage to swamp you in legal docs

maskenfreiheit
Dec 30, 2004

Wiggly Wayne DDS posted:

the jury's still out

i will note that liability is also on the ability of clientele of s3 buckets for large data storage to swamp you in legal docs

that's why god invented tor

Wiggly Wayne DDS
Sep 11, 2010



and yet look at all those s3 bucket disclosures with the named researcher behind a company that is v unlikely to be able to handle such a reaction

BattleMaster
Aug 14, 2000

Cocoa Crispies posted:

isn't the whole freezing ram thing related to a ram behavior that allows what it holds most of the time to influence the state it defaults to?

DRAM stores data as charges in tiny capacitors, representing a 1 as a charge and a 0 as no charge or vice-versa; this charge is used to hold a field-effect transistor open or closed to represent the data. in a perfect world the capacitors will hold their charge forever (theoretically the FETs don't draw any current) but in real life they leak over time due to various imperfections in real materials and lose their charge. DRAM periodically "refreshes" the capacitors by writing the stored data back to itself to prevent this loss of charge and thus a loss of data

the leakage is great enough that without refresh the data will be lost in a fraction of a second, so the refreshing normally happens many times per second to prevent lost data

cooling the DRAM ICs reduces the leakage enough that it will last several seconds without refresh so you can quickly swap the RAM stick into another computer without losing data, so when the second computer begins refreshing the data it will maintain whatever was in it

however regardless of cooling the capacitors will still leak enough that within more than a several seconds the data will be lost forever because at that point the charge in capacitors representing a 1 will be indistinguishable from the charge representing a 0

there's no point to shredding RAM

edit: no point unless there's a policy that just shreds everything to be safe, but definitely no point to pulling out the ram specifically to shred it alongside the drives and nothing else

BattleMaster fucked around with this message at 00:15 on Sep 2, 2017

syscall girl
Nov 7, 2009

by FactsAreUseless
Fun Shoe

maskenfreiheit posted:

that's why god invented tor

strange idea of god there

(torpedo is still the best name for a sting though)

Wiggly Wayne DDS
Sep 11, 2010



i prefer 10m as my rule of thumb for lab-prepped recovery of ram data in an ideal scenario

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Volmarias
Dec 31, 2002

EMAIL... THE INTERNET... SEARCH ENGINES...

syscall girl posted:



(torpedo is still the best name for a sting though)

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