Bryan Alexander

researcher. exploit dev. hacking @ stripe
stop using twitter. find me @ [email protected]

[Open Source Security mailing list @oss_security]

CVE-2023-6246: Heap-based buffer overflow in the glibc's syslog(), @Qualys Security Advisory. https://t.co/Ilm77wa4T3

[James Forshaw @tiraniddo]

The Kerberos PAC verification bypass me and @monoxgas showed at the end of our BH presentation and was fixed last month is now open in the issue tracker. Certainly an interesting one :) https://t.co/iIePeeKpOR

[Bryan Alexander @dronesec]

@_wald0 @kfosaaen @xorrior @mcohmi @PyroTek3 @424f424f @mariussmellum @BaileyBercik @JefTek @drone

[Bryan Alexander @dronesec]

@elonmusk this is on you

[stephen @_tsuro]

Breaking the Chrome Sandbox with Mojo - the recording of my black hat talk is out:
https://t.co/5oY98dHm8t

(I'm painfully aware of the red shift :) )

[TrendAI Zero Day Initiative @thezdi]

Control Your Types or Get Pwned: Remote Code Execution in Exchange PowerShell Backend - @chudyPB provides the details of CVE-2022-41040 and -41082. These were the #Exchange bugs used in active attacks and recently patched. https://t.co/vEG63C2jKo

[JF Bastien @jfbastien]

Wherein I propose that C++ initialize all stack variables to zero, preventing ~10% of CVEs.

Cost: none.

🔗 https://t.co/LJsDiRl7ZR 🔗

[Shane Huntley @ShaneHuntley]

Six actively exploited 0days patched today by Microsoft including one found by @benoitsevens & @_clem1 from TAG.

https://t.co/iIOQczHfH9

2022 and we are still seeing active IE scripting exploitation 😔

Thanks to Microsoft for the quick turnaround and patch.

[Bryan Alexander @dronesec]

https://t.co/TcUUng37ot for those that are migrating

[Project Zero Bugs @ProjectZeroBugs]

A Very Powerful Clipboard: Analysis of a Samsung in-the-wild exploit chain https://t.co/DROpIZXH3l

[raptor @0xdea]

Now this is a pretty handy tool...

"A plugin to introduce interactive symbols into your debugger from your decompiler"

// by @mahal0z

https://t.co/QYQHpgHRuK

[Will Oremus @WillOremus]

Inside Elon Musk's "free speech" Twitter, a culture of secrecy and fear has taken hold. Managers and employees have been muzzled, Slack channels have gone dark, and workers are turning to anonymous gossip apps to find out basic info about their jobs. https://t.co/Mn21Ko9CqM

[KevinLu @K3vinLuSec]

My new blog series: Technical Analysis of Windows CLFS Zero-Day Vulnerability CVE-2022-37969 - Part 1: Root Cause Analysis https://t.co/WAoH9jkDJ0
Part 2: Exploit Analysis https://t.co/HAL0XSKf9M
#0day #exploit #vulnerability #CVE_2022_37969

[Alex Matrosov @matrosov]

My keynote "The Evolution of Firmware Threats: Attacks below the OS" from @nohatcon is now available online!

https://t.co/sMPg9e5BTH

[Brandon Azad @_bazad]

I’m really excited for us to shed light on some really cool work we’ve been doing to harden the XNU allocator! This has been a huge effort by so many people, and I’m very proud of the direction: https://t.co/aW4LXuKbWV

[nedwill @NedWilliamson]

A couple months overdue, here's the open source release of Concurrence, my new fuzzing library for thread-based targets. Integration code to SockFuzzer, plus Mach process/IPC/VM/etc. support are coming soon. Check it out at https://t.co/CIYXrcrHcx

[kylebot @ky1ebot]

Finally, here is the blog documenting the crazy 7 days that I spent on CVE-2022-1786 to pwn kCTF (and won a lot of cash)! Let me know what you think of the blog! https://t.co/6OnnGK363y

[Andrey Konovalov @andreyknvl]

Slides for "Sanitizing the Linux kernel: On KASAN and other Dynamic Bug-finding Tools", the talk I just gave at Linux Security Summit Europe 2022.

Covers:
🐧 Generic KASAN implementation
🔥 Other Sanitizers
🗡 Extending KASAN and KMSAN to find more bugs

https://t.co/yfCppqEmr1

[CTurt @CTurtE]

New blog post!

Part 1 in my new PlayStation hacking series: An **unpatched** PS4 / PS5 userland exploit that also allows pirating PS2 games.

mast1c0re: Hacking the PS4 / PS5 through the PS2 emulator - Part 1 - Escape: https://t.co/WOVd1YlZ8R

Video demo: https://t.co/C9bKvS9Cu4

[Kostya Serebryany @kayseesee]

We had quite some fun for the last 2.5 years fuzzing CPUs. We wrote one system, scratched it, and wrote another one. This week we open-sourced most of it, and hope to open-source more in the future.
https://t.co/STbXdom5g4