meadori @meadori
compilers;maths;codes;nintendos github.com/meadori Magnolia Springs, AL Joined December 2008-
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Awesome work!
Ever struggle with C++ buffer issues? Spatial Safety is one of the main root causes for in-the-wild exploits! Read more about how we piloted the LLVM proposal for C++ Buffer Hardening here: bughunters.google.com/blog/636855965…
Come join us in the Google red team! We have a position open in NYC: google.com/about/careers/… The team is fantastic and the work is really cool. Message me if you have questions about the role but if you are interested please don't wait to get your application in.
Excited for @Google TAG’s annual look at 0days in the wild. Nice job @maddiestone - the thing that stood out for me was the importance of variant analysis to the exploit devs. blog.google/threat-analysi…
You're a 1337 hacker? Solve the gVisor sandbox challenge and others! g.co/ctf
Kernel has been pwned #blackhatasia
At some point last fall/winter I felt like giving up on everything. I don’t know where i got the energy to keep going, but def one place was my work. Today, that work officially paid off: git.kernel.org/pub/scm/linux/… Fuzzer will be open sourced soon :)
A fun decryption story! In 1914, The Netherlands sent a peace mission to Albania (I did not know this either). The mission commander, Major Lodewijk Thomson, was killed in battle under circumstances that are still unclear. And we'd love to know! en.wikipedia.org/wiki/Lodewijk_…
t=0//#つぶやきProcessing Happy Holiday 🎅 draw=_=>{t||createCanvas(W=600,W) noStroke(background(0)) w=W/2 for(j=10;j--;)for(i=60;i--;){p=t+i q=TAU/40*p+TAU/10*j r=p*10 fill(p*20,p*30,p*20) circle(cos(s=q+j/5)*r/2+w,sin(q+j/6)*r+p*20,noise(j,p)*8+cos(s+1.5))} t=(t+0.01)%1}
SectorLISP now supports garbage collection and we reduced its size to 436 bytes. That means LISP has now outdistanced FORTH and BASIC to be the most lightweight programming language in the world. justine.lol/sectorlisp2/
Seeing people testing log4j by injecting jndi into password fields. If that works, you don't need a patch, y'all need Jesus.
The first version of my ARM Assembler is finally finished! 🖤 AZM - Live ARM Assembler and Syntax Checker: azm.azerialabs.com - Supports most 32-bit ARM and 16-bit Thumb instructions - Automatic assembly of instructions as you type - Marks zero-bytes in output as you type
(•_•) <) )╯for sale: / \ \(•_•) ( (> ARM Cheat Sheet Poster / \ (•_•) <) )> from the finest arsenal. / \ Poster: teespring.com/arm-32-bit-ass… Digital: gum.co/arm-assembly-c…
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The Joy Of Cryptograp.. @JoyOfCrypto
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I've been reverse engineering the xz backdoor this weekend and have documented the payload format and written a proof-of-concept exploit for the RCE. The payloads are signed with an ED448 key, so I patched my own key into the backdoor for testing. :-) github.com/amlweems/xzbot
you may not like it, but this is what peak programming performance looks like
Wow!! Thank you ALL for so much support on my first #Pwn2Own win!! I’m very lucky to have a team and leadership that believes in me. I’m really proud of this bug; this is one of hardest exploits I’ve ever written. I can’t wait to share the details with you once it’s patched!
You don’t FIND exploits. You build them. You FIND vulnerabilities and exploit them. As an exploit developer that has failed to exploit lots of bugs that look good, the distinction is important 😭
Last year I discovered multiple bugs in virtio-net for VirtualBox (CVE-2023-22098, CVE-2023-22099, CVE-2023-22100) and wrote a 100% reliable VM escape using an out-of-bounds write (with ASLR defeat). Published the exploit code: github.com/google/securit…
Ever struggle with C++ buffer issues? Spatial Safety is one of the main root causes for in-the-wild exploits! Read more about how we piloted the LLVM proposal for C++ Buffer Hardening here: bughunters.google.com/blog/636855965…
Oct 14th 1995 - #Hackers of the world united to overload the Gibson, and prevent the Da Vinci virus from capsizing an oil fleet, designed to distract from "The Plague's" worm stealing $25m. 📽️📆 Hackers (1995) #HackThePlanet
That feeling when your exploit chain finally works in prod after months of work
Come join us in the Google red team! We have a position open in NYC: google.com/about/careers/… The team is fantastic and the work is really cool. Message me if you have questions about the role but if you are interested please don't wait to get your application in.
Idk, but the killer reason why I use vim is because I can ssh into a machine and dev there using tmux or screen. I don't have that with any IDE.
I don't get hard-core Vim developers. The gap between Vim and a modern IDE like Visual Studio Code is larger than Grand Canyon. I understand the keyboard argument, but you can use Visual Studio Code in Vim mode and get the best of both worlds. Are they really more productive…
Excited for @Google TAG’s annual look at 0days in the wild. Nice job @maddiestone - the thing that stood out for me was the importance of variant analysis to the exploit devs. blog.google/threat-analysi…
Always great to see this level of partnership across the ecosystem and shout out to @taviso for the great find on CVE-2023-20593. Thank you to @AMD for the partnership, collaboration like this is how we as an industry continue to keep users safe online cloud.google.com/support/bullet…
Zenbleed status. Great partnership across the ecosystem and shout out to @taviso for the great find on CVE-2023-20593. Thank you to @AMD for the partnership and collaboration, this is how we as an industry continue to keep users safe online. cloud.google.com/support/bullet…
And a reminder that we used github.com/google/buzzer to find this vuln! We are actively making the fuzzer better and adding more features. Stay tuned for new discoveries and feel free to contribute if you like the project!
I could say more thank you words for these three amazing people, but my gratitude does not fit in a single tweet :)
To conclude the tale of CVE-2023-2163 here is the exploit github.com/google/securit… Thanks again @chompie1337 for her amazing RCA and her other ebpf research @meadori For his amazing engineering feedback and also amazing help with RCA @scannell_simon For his original research!
I use Ghidra, Binary Ninja, and IDA - usually all at once. The performance of the first two is good enough that the price tag of IDA just isn’t warranted. Sorry. Binja is my daily driver because it’s the only one of the that’s not a pain in the ass to use.
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