11–20 of 180 posts
Wow, that seems really messy. If you're just after the API key or whatever, wouldn't reversing the Android app be simpler? As far as I know, you can't do all these low-level tricks on the Java platform.
Snapchat is notoriously difficult to automate/spam. The goal is to get the X-Snapchat token. The most elegant solution is to find the secret in the binary and reverse the algorithm to generate tokens. Wouldn't it be easier to MITM the endpoint; set up a dummy server (which collects tokens) in front of a proxy that spoofs the DNS and TLS certs (may be easier on rooted Android than iOS). In my last attempt I gave up an…
Cert (or hash of) delivered with app. If server cert doesn't match expected value coded into app, someone is messing with something, terminate connection.
Snapchat is notoriously difficult to automate/spam. The goal is to get the X-Snapchat token. The most elegant solution is to find the secret in the binary and reverse the algorithm to generate tokens. Wouldn't it be easier to MITM the endpoint; set up a dummy server (which collects tokens) in front of a proxy that spoofs the DNS and TLS certs (may be easier on rooted Android than iOS). In my last attempt I gave up an…
I’m confident the security engineering team at Snap has all kinds of white hat teams to prove and probe the security constantly.
Snapchat is notoriously difficult to automate/spam. The goal is to get the X-Snapchat token. The most elegant solution is to find the secret in the binary and reverse the algorithm to generate tokens. Wouldn't it be easier to MITM the endpoint; set up a dummy server (which collects tokens) in front of a proxy that spoofs the DNS and TLS certs (may be easier on rooted Android than iOS). In my last attempt I gave up an…
Certificate pinning spoils that, no spoofing of certs with pinning. Cert (or hash of) delivered with app. If server cert doesn't match expected value coded into app, someone is messing with something, terminate connection.
They've come a long way since then!
How many of these tricks are off the shelf techniques? Seems like a tremendous effort.
I suggest anyone looking at this would need to use Corellium such that Snap has made it hard for almost anyone to get their private API.
Snapchat is notoriously difficult to automate/spam. The goal is to get the X-Snapchat token. The most elegant solution is to find the secret in the binary and reverse the algorithm to generate tokens. Wouldn't it be easier to MITM the endpoint; set up a dummy server (which collects tokens) in front of a proxy that spoofs the DNS and TLS certs (may be easier on rooted Android than iOS). In my last attempt I gave up an…
Certificate pinning spoils that, no spoofing of certs with pinning. Cert (or hash of) delivered with app. If server cert doesn't match expected value coded into app, someone is messing with something, terminate connection.
I remember back in 2013(?) I went to a collegiate hackathon in Santa Monica. Evan Spiegel showed up to walk the floor and someone showed him how they had sniffed the API and did something interesting with it (forget the particulars now, getting old). If I recall correctly, Evan offered the kid a job on the spot but the kid turned him down. They've come a long way since then!
Wow, that seems really messy. If you're just after the API key or whatever, wouldn't reversing the Android app be simpler? As far as I know, you can't do all these low-level tricks on the Java platform.