--- title: Katana CTF Writeup | daily.dev description: A writeup of a CTF challenge that involved scanning ports, brute-forcing, exploiting vulnerabilities in web apps, and finding file upload abilities. canonical: https://daily.dev/posts/katana-ctf-writeup-b2g7j6kfv twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Katana CTF Writeup | daily.dev og:description: A writeup of a CTF challenge that involved scanning ports, brute-forcing, exploiting vulnerabilities in web apps, and finding file upload abilities. og:url: https://daily.dev/posts/katana-ctf-writeup-b2g7j6kfv og:image: https://api.daily.dev/og/posts/b2g7J6kfv.png og:image:alt: Katana CTF Writeup og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Katana CTF Writeup **[System Weakness](https://daily.dev/sources/systemweakness)** · 4 min read · 1 upvotes · 0 comments ## Summary A writeup of a CTF challenge that involved scanning ports, brute-forcing, exploiting vulnerabilities in web apps, and finding file upload abilities. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#pentesting](https://daily.dev/tags/pentesting) [View this post on daily.dev](https://daily.dev/posts/katana-ctf-writeup-b2g7j6kfv) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Katana CTF Writeup","url":"https://daily.dev/posts/katana-ctf-writeup-b2g7j6kfv","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/katana-ctf-writeup-b2g7j6kfv"},"datePublished":"2024-03-22T17:21:34.060Z","dateModified":"2024-05-09T08:39:06.345Z","description":"A writeup of a CTF challenge that involved scanning ports, brute-forcing, exploiting vulnerabilities in web apps, and finding file upload abilities.","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/6347690661a153b05c2d16d81ef06e77?_a=AQAEufR","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/6347690661a153b05c2d16d81ef06e77?_a=AQAEufR","isAccessibleForFree":true,"articleSection":"System Weakness","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"System Weakness","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/4675577b3a8145dab8e12f25b0751c15","url":"https://daily.dev/sources/systemweakness"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/katana-ctf-writeup-b2g7j6kfv","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"pentesting","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"System Weakness","item":"https://daily.dev/sources/systemweakness"},{"@type":"ListItem","position":3,"name":"Katana CTF Writeup"}]} ```