{"id":1,"date":"2010-05-09T20:23:25","date_gmt":"2010-05-09T20:23:25","guid":{"rendered":"http:\/\/www.floyd.ch\/?p=1"},"modified":"2010-09-23T15:23:22","modified_gmt":"2010-09-23T14:23:22","slug":"hello-world","status":"publish","type":"post","link":"https:\/\/www.floyd.ch\/?p=1","title":{"rendered":"ehlo floyd.ch"},"content":{"rendered":"<p>As everything starts once, today it&#8217;s my blog. This blog is simply about <strong>IT Security<\/strong> stuff.<\/p>\n<p>Today I was wondering how a web server reacts on an <strong>URI with a pound sign (#)<\/strong> in it. It took me about 3 hours to realise that it is not possible to send a pound sign with Firefox and WebScarab, even my first try with the perl library did not work. They&#8217;re just all too URI RFC 3986 compliant. But python&#8217;s urllib2 worked (not urllib)!<\/p>\n<p>http:\/\/192.168.1.42:80\/echoGetParameters.php?abc=123#ABC<br \/>\nhttp:\/\/192.168.1.42:8080\/echoGetParameters.jsp?abc=123#ABC<br \/>\nhttp:\/\/192.168.1.43:80\/echoGetParameters.aspx?abc=123#ABC<\/p>\n<p>Findings: Apache and IIS simply ignore it and everything after it. <strong>Apache Tomcat interprets the pound sign<\/strong> as part of the last GET value.<\/p>\n<p>If you want to try it yourself, use Wireshark to watch if the pound sign is really sent! I&#8217;m still thinking about an exploit&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As everything starts once, today it&#8217;s my blog. This blog is simply about IT Security stuff. Today I was wondering how a web server reacts on an URI with a pound sign (#) in it. It took me about 3 &hellip; <a href=\"https:\/\/www.floyd.ch\/?p=1\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-1","post","type-post","status-publish","format-standard","hentry","category-web-application-fuzzing"],"_links":{"self":[{"href":"https:\/\/www.floyd.ch\/index.php?rest_route=\/wp\/v2\/posts\/1","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.floyd.ch\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.floyd.ch\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.floyd.ch\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.floyd.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1"}],"version-history":[{"count":9,"href":"https:\/\/www.floyd.ch\/index.php?rest_route=\/wp\/v2\/posts\/1\/revisions"}],"predecessor-version":[{"id":154,"href":"https:\/\/www.floyd.ch\/index.php?rest_route=\/wp\/v2\/posts\/1\/revisions\/154"}],"wp:attachment":[{"href":"https:\/\/www.floyd.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.floyd.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.floyd.ch\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}