{"id":1538,"date":"2009-03-06T04:40:31","date_gmt":"2009-03-06T04:40:31","guid":{"rendered":"https:\/\/www.darknet.org.uk\/?p=1538"},"modified":"2015-09-09T19:39:00","modified_gmt":"2015-09-09T11:39:00","slug":"fzem-mua-mail-user-agent-mail-client-fuzzer","status":"publish","type":"post","link":"https:\/\/www.darknet.org.uk\/2009\/03\/fzem-mua-mail-user-agent-mail-client-fuzzer\/","title":{"rendered":"fzem &#8211; MUA (Mail User Agent) \/ Mail Client Fuzzer"},"content":{"rendered":"<p>[ad]<\/p>\n<p>fzem is a MUA (mail user agent) fuzzer that fuzzes MAIL\/MIME email headers as well as how clients handle SMTP, POP and IMAP responses.<\/p>\n<p><strong>Purpose<\/strong><\/p>\n<p>fzem&#8217;s purpose is to fuzz MUAs as they process email content and handle server reponses.<\/p>\n<p><strong>How does it work?<\/strong><\/p>\n<p>fzem has the three main mail protocols implemented as well as mail\/mime headers. Using these we can manipulate emails and responses to include fuzzing data from our fuzzing oracle or from the user.<\/p>\n<p>A user can command fzem to run in various modes and perform differently in those modes.<\/p>\n<ul>\n<li>Fuzz SMTP OK responses<\/li>\n<li>Fuzz SMTP ERROR responses<\/li>\n<li>Fuzz SMTP using custom fuzz data<\/li>\n<li>Fuzz MAIL\/MIME headers<\/li>\n<li>Fuzz MAIL\/MIME headers using custom fuzz data<\/li>\n<li>Fuzz MAIL\/MIME headers using custom headers<\/li>\n<li>Fuzz POP3 OK responses<\/li>\n<li>Fuzz POP3 ERROR responses<\/li>\n<li>Fuzz POP3 using custom fuzz data<\/li>\n<li>Fuzz IMAP4 OK responses<\/li>\n<li>Fuzz IMAP4 ERROR responses<\/li>\n<li>Fuzz IMAP4 using custom fuzz data<\/li>\n<\/ul>\n<p>We can also choose a specific port to listen on (-P) and take advantage of the useful debug option (-D).<\/p>\n<p>You can download fzem here:<\/p>\n<p><a href=\"http:\/\/www.krakowlabs.com\/dev\/fuz\/fzem\/fzem.tar.gz\">fzem.tar.gz<\/a><\/p>\n<p><!--adsense#New468--><\/p>\n<p>Or read more <a href=\"http:\/\/www.krakowlabs.com\/dev\/fuz\/fzem\/fzem_doc.txt\">here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad] fzem is a MUA (mail user agent) fuzzer that fuzzes MAIL\/MIME email headers as well as how clients handle SMTP, POP and IMAP responses. Purpose fzem&#8217;s purpose is to fuzz MUAs as they process email content and handle server reponses. How does it work? fzem has the three main mail protocols implemented as well [&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":"","_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":[10,9,29],"tags":[1278,1277],"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\/1538"}],"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=1538"}],"version-history":[{"count":0,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/posts\/1538\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/media?parent=1538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/categories?post=1538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.darknet.org.uk\/wp-json\/wp\/v2\/tags?post=1538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}