
{"id":611,"date":"2022-09-02T13:31:48","date_gmt":"2022-09-02T06:31:48","guid":{"rendered":"http:\/\/tuantvk.com\/?p=611"},"modified":"2022-09-02T13:31:49","modified_gmt":"2022-09-02T06:31:49","slug":"elf-x86-basic","status":"publish","type":"post","link":"https:\/\/tuantvk.com\/elf-x86-basic\/","title":{"rendered":"ELF x86 &#8211; Basic"},"content":{"rendered":"\n<p>Link: <a href=\"https:\/\/www.root-me.org\/en\/Challenges\/Cracking\/ELF-x86-Basic\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.root-me.org\/en\/Challenges\/Cracking\/ELF-x86-Basic<\/a><\/p>\n\n\n\n<p>Xem th\u00f4ng tin c\u01a1 b\u1ea3n c\u1ee7a file <strong>ch2.bin<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ file ch2.bin\nch2.bin: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, for GNU\/Linux 2.6.8, with debug_info, not stripped<\/code><\/pre>\n\n\n\n<p>File&nbsp;<strong>ELF 32-bit<\/strong>&nbsp;v\u00e0&nbsp;<strong>not stripped<\/strong>.<\/p>\n\n\n\n<p>Ch\u1ea1y th\u1eed ch\u01b0\u01a1ng tr\u00ecnh v\u1edbi username l\u00e0 <strong>admin<\/strong>:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ .\/ch2.bin \n############################################################\n##        Bienvennue dans ce challenge de cracking        ##\n############################################################\n\nusername: admin\nBad username<\/code><\/pre>\n\n\n\n<p>K\u1ebft qu\u1ea3 b\u00e1o <strong><em>Bad username<\/em><\/strong>.<\/p>\n\n\n\n<p>\u1ede \u0111\u00e2y m\u00ecnh s\u1eed d\u1ee5ng tool <a href=\"https:\/\/rada.re\/n\/\" target=\"_blank\" rel=\"noreferrer noopener\">radare2<\/a> \u0111\u1ec3 review code assembly v\u00e0 code C:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"574\" src=\"http:\/\/tuantvk.com\/wp-content\/uploads\/2022\/09\/Screen-Shot-2022-09-02-at-13.19.13-1024x574.png\" alt=\"\" class=\"wp-image-612\" srcset=\"https:\/\/tuantvk.com\/wp-content\/uploads\/2022\/09\/Screen-Shot-2022-09-02-at-13.19.13-1024x574.png 1024w, https:\/\/tuantvk.com\/wp-content\/uploads\/2022\/09\/Screen-Shot-2022-09-02-at-13.19.13-300x168.png 300w, https:\/\/tuantvk.com\/wp-content\/uploads\/2022\/09\/Screen-Shot-2022-09-02-at-13.19.13-768x430.png 768w, https:\/\/tuantvk.com\/wp-content\/uploads\/2022\/09\/Screen-Shot-2022-09-02-at-13.19.13-1536x861.png 1536w, https:\/\/tuantvk.com\/wp-content\/uploads\/2022\/09\/Screen-Shot-2022-09-02-at-13.19.13-2048x1148.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Nh\u01b0 v\u1eady m\u00ecnh s\u1ebd c\u00f3 th\u00f4ng tin l\u00e0:<br>username: <strong>john<\/strong><br>password: <strong>the ripper<\/strong><\/p>\n\n\n\n<p>V\u00e0 \u0111\u00e2y l\u00e0 k\u1ebft qu\u1ea3:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ .\/ch2.bin\n############################################################\n##        Bienvennue dans ce challenge de cracking        ##\n############################################################\n\nusername: john\npassword: the ripper\nBien joue, vous pouvez valider l'epreuve avec le mot de passe : 987654321 !<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Link: https:\/\/www.root-me.org\/en\/Challenges\/Cracking\/ELF-x86-Basic Xem th\u00f4ng tin c\u01a1 b\u1ea3n c\u1ee7a file ch2.bin File&nbsp;ELF 32-bit&nbsp;v\u00e0&nbsp;not stripped. Ch\u1ea1y th\u1eed ch\u01b0\u01a1ng tr\u00ecnh v\u1edbi username l\u00e0 admin: K\u1ebft qu\u1ea3 b\u00e1o Bad username. \u1ede \u0111\u00e2y m\u00ecnh s\u1eed d\u1ee5ng tool radare2 \u0111\u1ec3 review code assembly v\u00e0 code C: Nh\u01b0 v\u1eady m\u00ecnh s\u1ebd c\u00f3 th\u00f4ng tin l\u00e0:username: johnpassword: the ripper V\u00e0 \u0111\u00e2y l\u00e0 k\u1ebft [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"close","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30,33,32],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ELF x86 - Basic - tuantvk<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tuantvk.com\/elf-x86-basic\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ELF x86 - Basic - tuantvk\" \/>\n<meta property=\"og:description\" content=\"Link: https:\/\/www.root-me.org\/en\/Challenges\/Cracking\/ELF-x86-Basic Xem th\u00f4ng tin c\u01a1 b\u1ea3n c\u1ee7a file ch2.bin File&nbsp;ELF 32-bit&nbsp;v\u00e0&nbsp;not stripped. Ch\u1ea1y th\u1eed ch\u01b0\u01a1ng tr\u00ecnh v\u1edbi username l\u00e0 admin: K\u1ebft qu\u1ea3 b\u00e1o Bad username. \u1ede \u0111\u00e2y m\u00ecnh s\u1eed d\u1ee5ng tool radare2 \u0111\u1ec3 review code assembly v\u00e0 code C: Nh\u01b0 v\u1eady m\u00ecnh s\u1ebd c\u00f3 th\u00f4ng tin l\u00e0:username: johnpassword: the ripper V\u00e0 \u0111\u00e2y l\u00e0 k\u1ebft [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/tuantvk.com\/elf-x86-basic\/\" \/>\n<meta property=\"og:site_name\" content=\"tuantvk\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-02T06:31:48+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-02T06:31:49+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/tuantvk.com\/wp-content\/uploads\/2022\/09\/Screen-Shot-2022-09-02-at-13.19.13-1024x574.png\" \/>\n<meta name=\"author\" content=\"tuantvk\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"tuantvk\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/tuantvk.com\/elf-x86-basic\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/tuantvk.com\/elf-x86-basic\/\"},\"author\":{\"name\":\"tuantvk\",\"@id\":\"https:\/\/tuantvk.com\/#\/schema\/person\/9357530531a557741484cc31c0b244bc\"},\"headline\":\"ELF x86 &#8211; 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