Earlier quoted context omitted.
" As a compromise, I allowed them to silently patch the vulnerability. " The way I read that they broke no embargo
They were pressured by OpenBSD to do so, and regret it. That doesn't mean they broke embargo, but it also doesn't reflect well on them. Do you think Theo would've respected the embargo if they had said "no, do not patch until the embargo date?"
Key Reinstallation Attacks – Breaking WPA2 by Forcing Nonce Reuse
151–160 of 424 posts
Re: Key Reinstallation Attacks – Breaking WPA2 by Forcing Nonce Reuse
#152"This is achieved by manipulating and replaying cryptographic handshake messages." so that means that the mac address has been spoofed to make the AP think that he is always talking to the same mac address. If I'm plugged into the router directly then i should be good because it eliminates the wifi handshake. So even though other devices on the wifi network could be affected, the node that is plugged in is safe again…
Well yeah, you'd always be safe against these types of attacks if you're wired in. Even on Ethernet.
Re: Key Reinstallation Attacks – Breaking WPA2 by Forcing Nonce Reuse
#153One thing to clarify, does the attack require the attacker to be already connected to the AP?
Re: Key Reinstallation Attacks – Breaking WPA2 by Forcing Nonce Reuse
#154I'm not sure I understand the concern with breaking WiFi. Okay, so you're vulnerable to snooping and injection by people in the same coffee shop or your neighborhood. But you're already vulnerable to that from anybody on the Internet between you and the site. HTTPS solves both of these. Am I missing something?
Re: Key Reinstallation Attacks – Breaking WPA2 by Forcing Nonce Reuse
#155Earlier quoted context omitted.
This is one of those things that should be better with modern handsets and the security patch level for Android. Hopefully a fix for this is included in the November set. In general most bigger manufacturers have been somewhat decent in updating their flagship devices. With a Sony flagship from the last 18 months for example, you usually won't run more than two months behind on security updates. Samsung is similar if…
I have a HTC 10, a flagship device that's barely a year old the fact that I now have to wait a couple a months for a patch to what is clearly a critical vulnerability is just ridiculous. The fact that anyone without a flagship device should now throw that phone away because it will probably never be patched is despicable. I totally agree with your hope that this will kick both the manufacturers and Google in the butt…
Re: Key Reinstallation Attacks – Breaking WPA2 by Forcing Nonce Reuse
#156Earlier quoted context omitted.
What happens if a vendor or researcher is in bed with the NSA and they use the exploit while embargoed? The whole thing is a shit show and really I'm rather more behind OpenBSD's approach. Edit just to expand on this as someone deleted a post .... ---- It's slightly more complicated than the prisoner's dilemma. The prisoner's dilemma doesn't account for a large facet of the problem which is being discussed here. If a…
Ultimatum games [1] are a subset of prisoner's dilemmas. That covers Nos. 1 and 2. Assuming researchers want something from those they disclose to, it makes sense for them to cast the widest net possible while minimising the risk of defection. Balancing that optimization is a game as old as civilization. > This turns it into a security monopoly where the big vendors get exclusive rights to embargo and exclude smaller…
No one is credible here. The very nature of a closed agreement of secrecy between arbitrary parties is the opposite of credibility.
Re: Key Reinstallation Attacks – Breaking WPA2 by Forcing Nonce Reuse
#157Earlier quoted context omitted.
The researcher's reaction is correct. OpenBSD maintainers' lack of patience may have led to this vulnerability being discovered and exploited by other people.
You got everything wrong. If big vendors are unable to patch their proprietary products in an acceptable time, that shouldn't put others at risk. Users shouldn't choose their products... Think about it in a different way: What if a vulnerability was discovered in TLS and FOSS implementations patched it, but there is an embargo for supposedly protecting some banking software? What if NSA/CIA/other agencies find out ab…
If you don't agree with an embargo and decide to break it, that's on you. But the consequence is that you shouldn't be surprised if next time you're informed later, or not at all. What OpenBSD proponents and developers are doing right now, is damage control. It may work this time, it may work next time, but it won't keep working every time so pick your fights right. It isn't the first debacle OpenBSD has with full disclosure either (hint: OpenSSH).
There are also millions upon millions of devices which won't get patched. Given the vulnerability is apparently the most vulnerable on Linux and hence Android, do you think all the smartphones running Android 4.3, 4.4, 5.0, and 6.0 will be patched [1]?
[1] https://en.wikipedia.org/wiki/Android_(operating_system)#Pla...
Re: Key Reinstallation Attacks – Breaking WPA2 by Forcing Nonce Reuse
#158Earlier quoted context omitted.
Currently the only mitigation is to constrain your browsing to properly configured https (SSL) web sites.
You can (try) to restrict your browsing to HTTPS sites only. But it's very difficult to ensure that all the communications your device is making (background services, vendor apps...) go through that channel.
Re: Key Reinstallation Attacks – Breaking WPA2 by Forcing Nonce Reuse
#159I'm not sure I understand the concern with breaking WiFi. Okay, so you're vulnerable to snooping and injection by people in the same coffee shop or your neighborhood. But you're already vulnerable to that from anybody on the Internet between you and the site. HTTPS solves both of these. Am I missing something?
Re: Key Reinstallation Attacks – Breaking WPA2 by Forcing Nonce Reuse
#160Earlier quoted context omitted.
Well yeah, you'd always be safe against these types of attacks if you're wired in. Even on Ethernet.
So if i use my wired in node as an ssh tunnel out to the "internets" to tunnel all traffic from my wifi connected nodes then this mitigates the issue till updates come through?