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Prikvačeni tweet
Congratulations to
@pastenctf for coming in first, r00timentary second, and@DragonSectorCTF third! https://2019.ctf.link/public/scoreboard/max …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Full release of our research paper on executing a "preimage attack" on the MD5 function. https://hxp.io/blog/70/hxp-36C3-CTF-md15/ …
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hxp proslijedio/la je Tweet
Checkout
@Oranav's great writeup on md15 from#36C3 CTF (@hxpctf - you rock!) - https://github.com/oranav/ctf-writeups/tree/master/36c3/md15 …. Interesting point: if we run this on WSLv1, it's immediately fail (due to different behavior in the loader) on the whole point of the chg, revealing everything ;)pic.twitter.com/8sjSUQYosb
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hxp proslijedio/la je Tweet
I published a write-up for md15 from
@hxpctf 36C3 CTF:https://github.com/oranav/ctf-writeups/tree/master/36c3/md15 …Prikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Just in case anyone still cares about last year's CTFs, we just published a few more rare
#36c3ctf writeups at https://hxp.io ! Feel free to ping us if you're still missing something or have any other questions.Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
hxp proslijedio/la je Tweet
My writeup for
@hxpctf 36C3 CTF - SaV-ls-l-aaS challenge https://github.com/p4-team/ctf/tree/master/2019-12-27-hxp-36c3/SaV-ls-l-aaS …#36C3@p4_teamHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
hxp proslijedio/la je Tweet
Just got a second exploit and write-up from the
@hxpctf CTF! This time from "braindead"
This one combines missing userspace pointer validation in writev() with a TOCTOU in clock_nanosleep(). Great show! 
https://github.com/braindead/ctf-writeups/tree/master/2019/36c3/wisdom …Prikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
hxp proslijedio/la je Tweet
I did a "casual" writeup of the "Token of HXP" challenge I played with
@__spq__ at#36C3CTF: https://github.com/G33KatWork/token_of_hxp_writeup … /cc@hxpctfHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
hxp proslijedio/la je Tweet
In the wake of last week's exploit, I've been auditing the SerenityOS syscalls and found quite a number of terrible and very exploitable bugs.


Let me show you some of them!Prikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
hxp proslijedio/la je TweetHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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hxp proslijedio/la je Tweet
When you include a file inside of a macro invocation, it seems GCC goes into the included file and fails to finish the macro call there. Clang does not have this problem. Found it during analysis of https://ctftime.org/writeup/17914 writeup to 36c3
@hxpctf CTF compilerbot challengepic.twitter.com/zMbbHBnsms
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hxp proslijedio/la je Tweet
Some new security mitigations in SerenityOS since yesterday: SMEP: https://github.com/SerenityOS/serenity/commit/8602fa5b49aa4e2b039764a14698f0baa3ad0532 … UMIP: https://github.com/SerenityOS/serenity/commit/9c0836ce97ae36165abd8eb5241bb5239af3a756 … Eager FP restore: https://github.com/SerenityOS/serenity/commit/fd740829d1976c7da2372b60e36d1ae569d6148d … No userspace I/O: https://github.com/SerenityOS/serenity/commit/f598bbbb1d71e33bb552c4cba9f2251c7438c92c … There's so much to learn here, thanks
@hxpctf for kickstarting it!

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Reminder to report your security findings to this awesome project :)https://twitter.com/awesomekling/status/1212055191715041281 …
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hxp proslijedio/la je Tweet
https://ctf.harrisongreen.me/2019/hxpctf/flag_concat/ … - Deep dive into a bug in the SSE version of libc's strncpy. Awesome challenge by
@hxpctf at#36c3!Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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hxp proslijedio/la je Tweet
As usual, great challenges at
#36c3 CTF! Always fun to find 0days at CTF :P Thanks so much@hxpctf and@pastenctf ! :)Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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Peek into the load balancer and reset circuit of the Totally not BadUSB challengepic.twitter.com/60gQHQE11C
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hxp proslijedio/la je TweetHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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hxp proslijedio/la je Tweet
GG and congratz to
@pastenctf (12240 pts - impressive score!
) & r00timentary (6182 pts, beat us by 45 pts in last 20 minutes
)!
The tasks were great! And I'm really happy about my first blood on "token of hxp", and accidental solve on "Totally not BadUSB" (both AVR+USB)
https://twitter.com/hxpctf/status/1211376520649940993 …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
hxp proslijedio/la je Tweet
I have a lot of respect for whatever sadist on
@hxpctf designed a challenge with a 473 byte handwritten binary that creates an LCG from user input that will need to generate ASCII readable shellcode. Truly evil.pic.twitter.com/JTv0eRazaR
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