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natashenka's profile
Natalie Silvanovich
Natalie Silvanovich
Natalie Silvanovich
@natashenka

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Natalie Silvanovich

@natashenka

Tamagotchi Hacker. Google Project Zero.

Mountain View, California, USA
natashenka.ca
Joined July 2008

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    Natalie Silvanovich‏ @natashenka 18 Dec 2019
    • Report Tweet

    Found this gem in the http://python.org  demos https://svn.python.org/projects/python/trunk/Demo/sockets/udpecho.py …pic.twitter.com/2cGX5EqUSE

    3:43 PM - 18 Dec 2019
    • 153 Retweets
    • 725 Likes
    • muuk Mounir ⵣ 🚴🏼‍♂️🇮🇪 さーさき Bluszcz Ⓥ (50%👨‍💻 /50%🦌🥙) Youssef Wundar of the Universe Shift osxjogi matto // DAMNIAM
    36 replies 153 retweets 725 likes
      1. New conversation
      2. Steve Christey Coley‏ @SushiDude 18 Dec 2019
        • Report Tweet
        Replying to @natashenka

        huh? no vuln here, assuming the code isn't set[ug]id! The user already has privileges to execute python code! It's just an undocumented API feature for other things invoking this program, nothing to see here ;-)

        2 replies 0 retweets 7 likes
      3. Natalie Silvanovich‏ @natashenka 18 Dec 2019
        • Report Tweet
        Replying to @SushiDude

        Ha ha! It’s just a bad habit to get into, what if you’re loading the port from somewhere untrusted next time?

        1 reply 0 retweets 16 likes
      4. 1 more reply
      1. New conversation
      2. Tyrell Daniel Nelson‏ @TyrellDanielNe1 27 Dec 2019
        • Report Tweet
        Replying to @natashenka @nilpointer1

        Perfectly acceptable use of eval.. In this case if you can input something that can cause damage, you could cause damage without eval as you would already have shell access.. It would be different if you were processing input from a client over the network like this

        1 reply 0 retweets 0 likes
      3. Natalie Silvanovich‏ @natashenka 27 Dec 2019
        • Report Tweet
        Replying to @TyrellDanielNe1 @nilpointer1

        The problem is that they’re teaching people who often don’t know much about python to use eval to convert integers without context

        1 reply 0 retweets 0 likes
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      1. Baa.‏ @secgoat 18 Dec 2019
        • Report Tweet
        Replying to @natashenka

        Explanation:pic.twitter.com/uzWp8FNx9P

        0 replies 2 retweets 63 likes
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      1. New conversation
      2. badidea  💫‏ @0xabad1dea 18 Dec 2019
        • Report Tweet
        Replying to @natashenka

        w— why would—

        1 reply 0 retweets 12 likes
      3. Daniel Carosone ⬡  🇸🇪  🇮🇹  🇦🇺‏ @redtwitdown 18 Dec 2019
        • Report Tweet
        Replying to @0xabad1dea @natashenka

        I assume it's some YOLO "parse as number" shorthand that "everyone knows" is just for demo purposes and you're only supposed to learn from the important parts of that demo

        1 reply 0 retweets 10 likes
      4. 2 more replies
      1. Seif ElSallamy‏ @SeifElsallamy 18 Dec 2019
        • Report Tweet
        Replying to @natashenka

        *copying and pasting the code to my remote nuclear reactor app*

        0 replies 2 retweets 24 likes
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      1. Ming Chow‏ @0xmchow 18 Dec 2019
        • Report Tweet
        Replying to @natashenka

        There’s a reason why I have a CTF challenge that involves eval() in my class.

        0 replies 0 retweets 17 likes
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      1. Jann Horn‏ @tehjh 18 Dec 2019
        • Report Tweet
        Replying to @natashenka

        https://svn.python.org/projects/python/trunk/Demo/sockets/echosvr.py … knows how to do it properly

        0 replies 0 retweets 10 likes
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