mitmproxy adds --emudhra option (github.com)
133 points by ahlCVA 2 hours ago
Confiks 19 minutes ago
It's almost a shame it includes the private key and doesn't bruteforce it in-band for every request.
lambda 7 minutes ago
Oh, nice. I was thinking of setting up a proxy for this for testing, nice to just have it working out of the box.
shrubble an hour ago
If I’m understanding correctly, you could sniff the communication between your Smart TV and the manufacturer using this method?
the_snooze 42 minutes ago
As long as the smart TV still trusts eMudhra, then yeah. You'll want to super careful and prevent the TV from pulling updates that could revoke that trust.
kevin_nisbet an hour ago
Possibly. But some manufacturers may not have the full set of roots, use a private authority, or do certificate pinning.
quotemstr an hour ago
If the TV isn't older than a few years, if it's not checking CRLs, and if it hasn't yet patched itself.
seniorsassycat an hour ago
How much of a boon is this for jailbreaking, reverse engineering, and mitm really?
himata4113 2 minutes ago
client on startup asks: hey server do you have any ads for me
server: here are latest ads
btw, the ads are capable of code execution for whatever reason so now you have an RCE on your hands for your client
bryancoxwell 14 minutes ago
Been wondering this as well. I also don’t really understand the mitm to jailbreak pipeline
flexagoon 6 minutes ago
Some smart devices pull config files from a server. By mitming that, you can change the config to enable some sort of developer mode on the device.
qwertyforce 6 minutes ago
Maybe intercept firmware update and then reverse engineer it and find rce?
tecleandor an hour ago
This is gonna be great to sniff apps in a couple older Android phones I have around. Hope they're not pinning certificates.
wildmXranat 44 minutes ago
Someone should've coined this disaster as "QuattroFail" to give it a little panache and international mystery
gnabgib 38 minutes ago
"4" was only some of the keys (they were all <256).. ByteFail seems more accurate
mintflow 32 minutes ago
Haha, this is quite interesting to test if you need to update various of program (if they do not use the sys ca chain)
deadbabe 12 minutes ago
Can someone explain the significance here, a lot has happened in 24 hours.
Gigachad 9 minutes ago
An Indian Certificate Authority was found to have a private key that’s literally the number 4. So using that you can sign valid https certs for anything that isn’t checking the revoked list.
skeledrew an hour ago
This is how fame happens.
0xbadcafebee 15 minutes ago
Remember twenty years ago when tools like this were "controversial" because you could "just download it and hack anyone" ? Except the only systems you could hack were... insecure ones... so people updated their systems to resist the tools' attacks, and we all ended up more secure.
xmcp123 32 minutes ago
Never thought there would be a silver lining on this issue. Fuck yeah.
sippingabonedry an hour ago
Wonderful.
Anyone else bother to notice iOS still trusts 2 of the forged certs on the test site? I'd like to politely know what the fuck is going on because this is far from being "fixed".
xuki an hour ago
Which iOS version? 27.0.1 here and they're all revoked for me.
sippingabonedry 39 minutes ago
26.7.1 still (randomly) trusts 2 out of the 12 compromised chains. All browsers impacted.
Edit: I'm not the only one with this issue:
https://www.reddit.com/r/iphone/comments/1xbvxgd/emudhra_cer...
My best guess is it's soft-failing on a failed OCSP lookup?
snailmailman 43 minutes ago
FWIW i havent updated my ios, I'm on 26.6.2, and they all got revoked for me. The revocation shouldn't require an iOS update.
DrammBA an hour ago
I love how someone's security disaster becomes someone else's feature.
Bratmon 6 minutes ago
As the percentage of technology controlled by people actively using it to do evil increases, so does the net value to society of a trivially-expliotable zero-day.
xp84 an hour ago
I agree. We may as well make some lemonade out of these lemons. IMHO the ability of companies to 'securely' close off hardware and software from their users is a sad casualty of the success of cryptography, and not a feature.
r3trohack3r 38 minutes ago
Most things have tradeoffs
At some point you’re forced to stack rank two or more of your values in a case where they’re mutually exclusive
tonymet an hour ago
I seriously laughed at the flag. public wifi is going to be lit.