Rating:

Return of the Intro to Netcat (662 solves, 160 points)

Description

hey, netcat seems fun! (with a twist)

nc return-of-the-intro-to-netcat.hsc.tf 1337

Solution

This one was one of the easier challenges.

The server gives us this:

please solve a pow first
You can run the solver with:
    python3 <(curl -sSL https://goo.gle/kctf-pow) solve s.AACF.AAD1NSzaviS15ewE/zJ3lZFb
===================

Solution?

I opened a new terminal window and ran the given command python3 <(curl -sSL https://goo.gle/kctf-pow) solve s.AACF.AAD1NSzaviS15ewE/zJ3lZFb

This gives me: s.AAB8PXCCRqChJ7WzDBUzjUv6t61ISzLAaSuK5R5W0k/y1gafBydG/gOOgIRgsaudj9OR7ZB2h2PhArYDhQEPFps3wZH2R7NodkCReoUPXoZxHRY2ntcztiZck5lKGxq8bmoYdpW4LWHQ+oTiJ+lVh0P6aB3vN63LXwzzUrhX4RLtfR+IjzXGn29JklaAZST/H37zpebVpF+8Np7BdrWHg1sF To my suprise, supplying the response to the nc server spits out the flag!

please solve a pow first
You can run the solver with:
    python3 <(curl -sSL https://goo.gle/kctf-pow) solve s.AACF.AAD1NSzaviS15ewE/zJ3lZFb
===================

Solution? s.AAB8PXCCRqChJ7WzDBUzjUv6t61ISzLAaSuK5R5W0k/y1gafBydG/gOOgIRgsaudj9OR7ZB2h2PhArYDhQEPFps3wZH2R7NodkCReoUPXoZxHRY2ntcztiZck5lKGxq8bmoYdpW4LWHQ+oTiJ+lVh0P6aB3vN63LXwzzUrhX4RLtfR+IjzXGn29JklaAZST/H37zpebVpF+8Np7BdrWHg1sF
Correct
You got it! Here's what you're looking for: flag{the_cat_says_meow}

Flag

flag{the_cat_says_meow}

Original writeup (https://github.com/BASHing-thru-challenges/HSCTF-2021-Writeups/tree/main/misc/Return%20of%20the%20Intro%20to%20Netcat).