Joined 3 years ago
the router sniffed plaintext http to grab HTTP User agents to put them into a curl bash command line string. Nice RCE from the browser.
It might be interesting to go and apply some of the sneaky packet injection mechanisms in this paper actually to try to bypass ARP spoofing defenses.
Ironically one of the main pain points is Apple. keychain sync means all the apple devices on the same sync account should share a password for wireless. Secondly the MAC randomization timeouts require reassignment.
The trouble with SAE per device passwords is that the commit makes it difficult to evaluate more than one password per pairing without knowing the identity of a device (the MAC) a-priori, which is why it's harder to find this deployed in production. It's possible for an AP to cycle through a few attempts but not many, whereas in WPA2 an AP could rotate through all the passwords without a commit. The standard needs to adapt.
WiFi provides half-way measures with client isolation features that break down when the packets hit L3, or in some cases the broadcast key implementations are deficient allowing L2 attacks. The paper is about all of the fun ways they could pivot across networks, and they figured out how to enable full bidirectional MITM in a wider class of attacks than commonly known or previously published.
However client isolation should be a tool people have at their disposal. Consider the need for people to buy cloud IOT devices and throw them on a guest network (https://arstechnica.com/security/2024/09/massive-china-state...). It's also about keeping web-browsers away from these devices during regular use, because there are paths for malicious web pages to break into IOT devices.
I work on https://supernetworks.org/. We propose a solution to these flaws with per-device VLANs and encourage per-device passwords as well.
More practically the risk for these attacks is as follows. A simple password makes sense for easy setup on a guest network, that's treated as untrusted. These passwords can probably be cracked from sniffing a WPA2 key exchange -- who cares says the threat model, the network is untrusted. But this attack lets the insecure network pivot out into the secure one.
