{"id":4472,"date":"2017-03-27T23:46:06","date_gmt":"2017-03-27T15:46:06","guid":{"rendered":"https:\/\/www.darknet.org.uk\/?p=4472"},"modified":"2017-03-27T23:46:23","modified_gmt":"2017-03-27T15:46:23","slug":"hashpump-exploit-hash-length-extension-attack","status":"publish","type":"post","link":"https:\/\/www.darknet.org.uk\/2017\/03\/hashpump-exploit-hash-length-extension-attack\/","title":{"rendered":"HashPump &#8211; Exploit Hash Length Extension Attack"},"content":{"rendered":"<p>HashPump is a C++ based command line tool to exploit the Hash Length Extension Attack with various hash types supported, including MD4, MD5, SHA1, SHA256, and SHA512.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.darknet.org.uk\/wp-content\/uploads\/2017\/03\/HashPump-Exploit-Hash-Length-Extension-Attack-640x273.png\" alt=\"HashPump - Exploit Hash Length Extension Attack\" width=\"640\" height=\"273\" class=\"aligncenter size-medium wp-image-4473\" \/><\/p>\n<p>There&#8217;s a good write-up of how to use this in practical terms here: <a href=\"https:\/\/github.com\/ctfs\/write-ups-2014\/tree\/master\/plaid-ctf-2014\/mtpox\">Plaid CTF 2014: mtpox<\/a><\/p>\n<h3>Usage<\/h3>\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3033787195489589\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- Darknet Responsive Post Ad Links [previously link ad unit] -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3033787195489589\"\r\n     data-ad-slot=\"5456620019\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<pre>$ hashpump -h\r\nHashPump [-h help] [-t test] [-s signature] [-d data] [-a additional] [-k keylength]\r\n    HashPump generates strings to exploit signatures vulnerable to the Hash Length Extension Attack.\r\n    -h --help          Display this message.\r\n    -t --test          Run tests to verify each algorithm is operating properly.\r\n    -s --signature     The signature from known message.\r\n    -d --data          The data from the known message.\r\n    -a --additional    The information you would like to add to the known message.\r\n    -k --keylength     The length in bytes of the key being used to sign the original message with.\r\n    Version 1.2.0 with CRC32, MD5, SHA1, SHA256 and SHA512 support.\r\n    <Developed by bwall(@botnet_hunter)><\/pre>\n<p>You can download HashPump here:<\/p>\n<pre>$ git clone https:\/\/github.com\/bwall\/HashPump.git\r\n$ apt-get install g++ libssl-dev\r\n$ cd HashPump\r\n$ make\r\n$ make install<\/pre>\n<p>Or read more <a href=\"https:\/\/github.com\/bwall\/HashPump\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>HashPump is a C++ based command line tool to exploit the Hash Length Extension Attack with various hash types supported, including MD4, MD5, SHA1, SHA256, and SHA512. There&#8217;s a good write-up of how to use this in practical terms here: Plaid CTF 2014: mtpox Usage $ hashpump -h HashPump [-h help] [-t test] [-s signature] [&hellip;]<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"HashPump is a C++ based command line tool to exploit the Hash Length Extension Attack with various hash types supported, including MD4, MD5, SHA1 etc.","_seopress_robots_index":"","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[26,10,9],"tags":[284],"featured_image_src":null,"featured_image_src_square":null,"author_info":{"display_name":"Darknet","author_link":"https:\/\/www.darknet.org.uk\/author\/darknet\/"},"_links":{"self":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/posts\/4472"}],"collection":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/users\/25"}],"replies":[{"embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/comments?post=4472"}],"version-history":[{"count":0,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/posts\/4472\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/media?parent=4472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/categories?post=4472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/tags?post=4472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}