Erling Ellingsen

@steike

ex-fb prodsec

Oslo, Norway
alf.nu
Bergabung Agustus 2008
10 Foto dan video Foto dan video

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  1. Tweet Sematan
    23 Feb 2017

    Make your own colliding PDFs:

    6 balasan 295 retweet 280 suka
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  2. 9 Agu 2018

    Ooh! On DOS, this was a much faster way to allocate space than writing zeros—but you would get whatever was on disk (so, random data from deleted files). This led to an early privacy panic when private data turned up inside the cache files of some online service client… Prodigy?

    I learnt about ✨file holes✨ on Unix!
    4 suka
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  3. 22 Mei 2018

    Someone should set up a meta-tags-as-a-service company that keeps track of all the new browser features and automatically opts your site out of the ones that create unnecessary attack vectors

    This is a bad idea.
    1 balasan 2 retweet 6 suka
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  4. 13 Mar 2018

    This is so great. Also, to save some work: If you have a crazy hetereogenous setup, it's enough to automate the setup for one domain. You can CNAME _acme-challenge.[everything else] to that (once) and just serve all the TXT records from there (extra garbage is ignored)

    Let's Encrypt wildcard certificates and ACMEv2 are available today! More information can be found here:
    3 suka
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  5. 16 Feb 2018

    Online shopping is a lot easier when you take into account that (1) humans make systems (2) reliably comparing free-format street addresses is a difficult but unsexy problem

    1 retweet 5 suka
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  6. 7 Jan 2017

    Posted four old browser bugs and a new one

    1 balasan 36 retweet 53 suka
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  7. 24 Nov 2016

    today

    Batalkan
  8. 24 Nov 2016

    In progress. and are back up, soon.

    Any plans to revive ? I can't get it to work through .
    1 balasan 1 retweet 9 suka
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  9. 28 Agu 2016

    Oh hey, that's CVE-2011-3441! (except on iOS no extra tricks were needed, just 1.2.3.4%20.victim.㏄ and get cookies)

    Blogged again! Explaining same origin policy bypass in Firefox (CVE-2015-7188) thanks to quirk in IP address parsing
    1 retweet 3 suka
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  10. 11 Agu 2016

    It looks like the same solution should work in all the modern browsers with small modifications. This is surprising.

    Membalas @steike
    And by the way - are you going to perhaps provide us with some hint for random4? ;)
    1 balasan 1 suka
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  11. 3 Agu 2016

    Had a bunch of alert(1)-to-win levels left over that weren't really security related. General ecmascript golf time!

    1 balasan 14 retweet 18 suka
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  12. 7 Apr 2016

    Is your entire domain 'X-Frame-Options: DENY', but not your error pages? Now's as good a time as any to fix it… (iframe UXSS in Safari)

    2 balasan 4 retweet 15 suka
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  13. 18 Mar 2016

    We gave the whole internet keys so airport security won't break open your luggage. They do anyway. In other news, an FPGA dev kit is a bomb.

    1 retweet 3 suka
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  14. 10 Mar 2016

    "Can you please provide me the last 4 characters of the cPanel password to verify ownership of the account?" - cc :-)

    1 balasan 1 suka
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  15. 7 Feb 2016

    fin-fin wifi, men utløpt sertifikat på . Bonus om den kan bli synlig i DNS for de som bruker ⒏⒏⒏8 e.l

    1 balasan
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  16. 15 Des 2015

    @Fridababy_HQ assuming you don't have an online phramacy seo side business, your web server is hacked

    Batalkan
  17. 5 Okt 2015

    "Code cleanup and fixes"

    1 balasan 2 retweet 1 suka
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  18. me-Retweet
    10 Sep 2015

    Slides for my talk about FireEye:

    6 balasan 257 retweet 167 suka
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  19. 22 Jun 2015
    Membalas

    @JamEngulfer221 Sort of. Each user gets a sandbox branch. Hmm, I guess there should be a way to request a merge...

    1 balasan
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