{"id":1582,"date":"2009-03-16T22:27:16","date_gmt":"2009-03-16T21:27:16","guid":{"rendered":"http:\/\/www.corelan.be:8800\/index.php\/2009\/03\/16\/juniper-netscreenscreenos-to-html-ns2html-audit-your-firewall-config-nipper\/"},"modified":"2009-03-16T22:27:16","modified_gmt":"2009-03-16T21:27:16","slug":"juniper-netscreenscreenos-to-html-ns2html-audit-your-firewall-config-nipper","status":"publish","type":"post","link":"https:\/\/www.corelan.be\/index.php\/2009\/03\/16\/juniper-netscreenscreenos-to-html-ns2html-audit-your-firewall-config-nipper\/","title":{"rendered":"Juniper : Netscreen\/ScreenOS to HTML (ns2html) + audit your firewall config (nipper)"},"content":{"rendered":"<p>A short while ago, I came across 2 really nice tools that will help<\/p>\n<p>- visualizing screenos configs into html pages<\/p>\n<p>- auditing firewall configs<\/p>\n<p>&#160;<\/p>\n<h3>Converting screenos to html<\/h3>\n<p>The first tool, called ns2html, was developed by Rodrigo Pace de Barros and can be found at <a title=\"http:\/\/ns2html.sourceforge.net\/\" href=\"http:\/\/ns2html.sourceforge.net\/\">http:\/\/ns2html.sourceforge.net\/<\/a><\/p>\n<p>It is written in perl and both the .pl and the compiled version are part of the download package.<\/p>\n<p>After downloading and extracting the zip file (I\u2019m using the Windows version), you need to edit the config file, which can be found in the etc folder (ns2html.cfg)<\/p>\n<p>Verify the \u201cPUBLISH\u201d and \u201cBROWSER\u201d path and save the file<\/p>\n<p>Next, launch the ns2html.exe file (under bin)<\/p>\n<p><a href=\"\/wp-content\/uploads\/2009\/03\/image.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" title=\"image\" style=\"border-right: 0px; border-top: 0px; display: inline; border-left: 0px; border-bottom: 0px\" height=\"128\" alt=\"image\" src=\"\/wp-content\/uploads\/2009\/03\/image-thumb.png\" width=\"191\" border=\"0\" \/><\/a> <\/p>\n<p>Select your screenos config file, verify the output directory. Click \u201copen rulebase in browser after generation?\u201d and click generate.<\/p>\n<p>Note : if you have previously converted a config file from the same firewall before, and are saving the files in the same folder, you will be prompted to overwrite the files in the small command-line window that sits behind the window dialog. When the process is complete, you\u2019ll get a subfolder (name of the firewall) that contains a couple of html files and images. When you open the index page (index.&lt;date&gt;.html), you\u2019ll get this<\/p>\n<p><a href=\"\/wp-content\/uploads\/2009\/03\/image1.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" title=\"image\" style=\"border-right: 0px; border-top: 0px; display: inline; border-left: 0px; border-bottom: 0px\" height=\"235\" alt=\"image\" src=\"\/wp-content\/uploads\/2009\/03\/image-thumb1.png\" width=\"398\" border=\"0\" \/><\/a> <\/p>\n<p>Life doesn\u2019t get much easier than this\u2026 I wish there were more awesome tools like this. This is really a great tool for people who are looking to save their rulesets in a very user-friendly &amp; readable format.<\/p>\n<p>&#160;<\/p>\n<h3>Audit your ruleset<\/h3>\n<p>A second tool I would like to talk about is \u201cnipper\u201d. This utility was written by Ian Ventura-Whiting and can be found at http:\/\/nipper.titania.co.uk . It is a Network Infrastructure Parser (hence the name NIPper) and will provide a nice friendly report containing a really nice audit report on your config file.<\/p>\n<p>The tool supports a whole range of devices : Bay Networks, Cisco IOS, Cisco ASA, Juniper Netscreen, Nortel Passport, Nokia, SonicWall, \u2026<\/p>\n<p>After downloading and extracting the \u201call in one\u201d package, you will see these files :<\/p>\n<p><a href=\"\/wp-content\/uploads\/2009\/03\/image2.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" title=\"image\" style=\"border-right: 0px; border-top: 0px; display: inline; border-left: 0px; border-bottom: 0px\" height=\"146\" alt=\"image\" src=\"\/wp-content\/uploads\/2009\/03\/image-thumb2.png\" width=\"214\" border=\"0\" \/><\/a> <\/p>\n<p>Edit the nipper.ini file with wordpad or notepad++&#160; and go to the Report section. Set a Company Name and save the file.<\/p>\n<p>When you run nipper \/? or nipper --help, you\u2019ll get a short help text :<\/p>\n<table border=\"1\">\n<tbody>\n<tr>\n<td>\n<pre>                     _                           ____\n               _ __ (_)_ __  _ __   ___ _ __    \/ -&gt;\/|\n              | '_ \\| | '_ \\| '_ \\ \/ _ \\ '__|  \/&lt;-_\/ |\n              | | | | | |_) | |_) |  __\/ |     |   | \/\n              |_| |_|_| .__\/| .__\/ \\___|_|     |___|\/\n                      |_|   |_|\n\n                         CLI Version 0.12.0\n                    http:\/\/nipper.titania.co.uk\n            Copyright (C) 2006-2008 Ian Ventura-Whiting\n\nNipper is a  Network Infrastructure  Configuration Parser.  Nipper takes\na network infrastructure  device configuration,  processes the  file and\nproduces  a report  which can  include detailed a  security audit  and a\nconfiguration report.\n\nBy default, input is retrieved from stdin and is output (in HTML format)\nto stdout.\n\nCommand:\n    nipper [Options]\n\nGeneral Options:\n    --input=&lt;file&gt;\n    Specifies a  device configuration  file to  process.  For CheckPoint\n    Firewall-1  configurations,  the  input should be the conf directory\n    (or the database directory).\n\n    --output=&lt;file&gt; | --report=&lt;file&gt;\n    Specified an output file for the report.\n\n    --version\n    Displays the program version.\n\nExample:\n    The  example   below  will   process  a   Cisco   IOS-based   router\n    configuration file called ios.conf  and output  the report to a file\n    called report.html.\n\n    nipper --ios-router --input=ios.conf --output=report.html\n\nFor additional help:\n    --help[=&lt;topic&gt;]\n    Show  the  online help  or show  the  additional  help on  the topic\n    specified.  The help  topics  are;  GENERAL,  DEVICES,  DEVICES-ADV,\n    SNMP,  REPORT, REPORT-ADV,  REPORT-SECT, REPORT-HTML,  REPORT-LATEX,\n    AUDIT-ACL, AUDIT-PASS, AUDIT-ADV or CONFIG-FILE.<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Copy the screenos (or other compatible) config file into the folder and run<\/p>\n<p>nipper --input=yourconfigfile.cfg --output=firewallaudit.html<\/p>\n<p>If the tool has difficulties determining the type of device, you can specify the device using one of the following parameters :<\/p>\n<table border=\"1\">\n<tbody>\n<tr>\n<td>\n<pre>    CMD Option       Device Type\n    ====================================================\n    --auto           Auto-Detect Device (Default)\n    --3com-firewall  3Com SuperStack 3 Firewall\n    --accelar        Bay Networks Accelar\n    --cp-firewall    CheckPoint Firewall Module\n    --cp-management  CheckPoint Management Module\n    --ios-router     Cisco IOS-based Router\n    --ios-catalyst   Cisco IOS-based Catalyst Switch\n    --pix            Cisco PIX-based Firewall\n    --asa            Cisco ASA-based Firewall\n    --fwsm           Cisco FWSM-based Router\n    --catos          Cisco CatOS-based Catalyst\n    --nmp            Cisco NMP-based Catalyst\n    --css            Cisco Content Services Switch\n    --procurve       HP ProCurve Switches\n    --screenos       Juniper NetScreen Firewall\n    --nokiaip        Nokia IP Firewall\n    --passport       Nortel Passport Device\n    --nortel-switch  Nortel Ethernet Routing Switch 8300\n    --sonicos        SonicWall SonicOS Firewall<\/pre>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&#160;<\/p>\n<p>Try it \u2013 you\u2019ll love it.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A short while ago, I came across 2 really nice tools that will help - visualizing screenos configs into html pages - auditing firewall configs &#160; Converting screenos to html The first tool, called ns2html, was developed by Rodrigo Pace de Barros and can be found at http:\/\/ns2html.sourceforge.net\/ It is written in perl and both &hellip; <a href=\"https:\/\/www.corelan.be\/index.php\/2009\/03\/16\/juniper-netscreenscreenos-to-html-ns2html-audit-your-firewall-config-nipper\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> \"Juniper : Netscreen\/ScreenOS to HTML (ns2html) + audit your firewall config (nipper)\"<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[554,373,127],"tags":[3735],"class_list":["post-1582","post","type-post","status-publish","format-standard","hentry","category-juniper","category-scripts","category-security","tag-juniper-netscreen-screenos"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Juniper : Netscreen\/ScreenOS to HTML (ns2html) + audit your firewall config (nipper) - Corelan | Exploit Development &amp; 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