Pwning in HITCON; Security Researcher of DEVCORE

Taiwan
Joined October 2016
A #Pwn2Own #AfterDark success! The #Devcore team used a code injection bug to take over the Lexmark MC3224i printer. They win $20,000 and 2 Master of Pwn points. They now trail @Synacktiv by only 1 point. #P2OAustin #MasterOfPwn
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I know there are lots of people waiting for the recent Microsoft Exchange pre-auth RCE on our side. This is a short advisory and detailed timeline. proxylogon.com/ #proxylogon
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Confirmed! The DEVCORE team of @orange_8361, @scwuaptx and @mehqq_ used an elegant heap overflow to get code execution on the #Synology NAS during their 2nd attempt. They earn themselves $20,000 and 2 Master of Pwn points.
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How I Hacked Facebook Again! Unauthenticated RCE on MobileIron MDM (slides inside) blog.orange.tw/2020/09/how-i… #HITCON
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New writeup, one of my favorite bugs 🤠 - Filling in the Blanks: Exploiting Null Byte Buffer Overflow for a $40,000 Bounty samcurry.net/filling-in-the-… Featuring... @d0nutptr @0xacb @Regala_ @JLLiS @Yassineaboukir @plmaltais
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Getting Arbitrary Code Execution from fopen's 2nd Argument hugeh0ge.github.io/2019/11/0…
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The last part of our Attacking SSL VPN series is out - The Golden Pulse Secure SSL VPN RCE Chain, with Twitter as Case Study! blog.orange.tw/2019/09/attac… "If you have a nuclear level weapon, when is it ready for public disclosure?"
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Twitter disclosed a bug submitted by orange: hackerone.com/reports/591295 - Bounty: $20,160 #hackerone #bugbounty
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Just drop the RCEs, slides(@BlackHatEvents will fix soon) and blog of @mehqq_ and me's #BHUSA and #DEFCON talk - Infiltrating Corporate Intranet Like NSA: Pre-auth RCE on Leading SSL VPNs! Please check that and let us know if you have any questions! blog.orange.tw/2019/08/attac…
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See you in DEFCON
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Oh my god! Best server side bug of @PwnieAwards 2019, with our CTF and DEVCORE pwning queen @mehqq_
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Appetizer for our #BHUSA and #DEFCON talk ! @mehqq_ and I will cover more hard-core exploitations, crazy bugs chains and SSL VPN 0days in our incoming presentation! Please look forward to it :P blog.orange.tw/2019/07/attac…
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Replying to @mehqq_
@mehqq_ and I will present at #RomHack2019 this year! See you there :P
📢 #RomHack2019 Schedule 📢 #RomHack2019 schedule is finally out We can't wait to meet our speakers and attendeees in Rome next 28th of September romhack.io/program_en-2019.h… Check the thread for details ⬇️⬇️⬇️⬇️
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Here is my challenge in WCTF 2019. github.com/scwuaptx/LazyFrag…
 Hope everyone can learn more windows heap from this challenge. About windows 10 NT heap slideshare.net/AngelBoy1/win… I only write Chinese version slide, I will release an English version soon.
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Is it possible to install IDA Pro without owning installation password? Sure, why not? devco.re/blog/2019/06/21/ope…
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Achievement unlocked! Got RCE and the highest bounty on Twitter bug bounty program XD hackerone.com/orange
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It's my honor to present at #BHUSA again! @mehqq_ and I will show our research and disclose pre-auth RCEs on at least 3 leading SSL VPN vendors! blackhat.com/us-19/briefings… @BlackHatEvents
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Nice writeup+(0x41414141) PoC for Mozilla Firefox HTML5 Stream Parsing Use-after-free Vulnerability (CVE-2018-18500) by Yaniv Frank from @SophosLabs: news.sophos.com/en-us/2019/0…
chromacity: Escaping the VM with newlines. My write-up of the challenge by @_niklasb. theofficialflow.github.io/20…
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