Zapotek/arachni — Issue #155: undefined method `[]' for nil:NilClass 
Author: kberquist
Created: 2012-02-12 02:40:47+00:00
State: open

Howdy,

I'm running the preconfigured cygwin installtion

I started the tool with: arachni http://www.mysite.com --mods=sqli* --redundant='default.asp':3 --redundant='login.asp':3 --redundant='ordertickets.asp':3

it runs for a minute or so with the log messages streaming by, and then it hits a few undef errors and dumps to the prompt. See excerpt below

[*] Blind (rDiff) SQL Injection: Auditing link variable 'c' of http://kberquist.showare.com/eventcategory.asp?c=3
[*] Harvesting HTTP responses...
[~] Depending on server responsiveness and network conditions this may take a while.
[*] Profiler: Analyzing response #737...
[*] Profiler: Analyzing response #735...
[*] SQLInjection: Analyzing response #750...
[*] Profiler: Analyzing response #738...
[*] SQLInjection: Analyzing response #749...
[*] SQLInjection: Analyzing response #748...
[*] SQLInjection: Analyzing response #751...
[*] Profiler: Analyzing response #736...
[*] Profiler: Analyzing response #739...
[*] Profiler: Analyzing response #747...
[*] Profiler: Analyzing response #740...
[*] Profiler: Analyzing response #743...
[*] Profiler: Analyzing response #742...
[*] Profiler: Analyzing response #741...
[*] Profiler: Analyzing response #744...
[-] undefined method `[]' for nil:NilClass
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:701:in `form_attrs'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:310:in `block in forms'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:306:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:306:in `forms'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/plugins/defaults/profiler.rb:114:in `find_landing_elements'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/plugins/defaults/profiler.rb:74:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/auditable.rb:385:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/auditable.rb:385:in `block in on_complete'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `block in call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:222:in `handle_request'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:186:in `block in get_easy_object'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `success'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `multi_perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:95:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:156:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:155:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:816:in `harvest_http_responses'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:798:in `run_mods'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:464:in `block (2 levels) in audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:464:in `block in audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `block in call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:222:in `handle_request'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:186:in `block in get_easy_object'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `success'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `multi_perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:95:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:156:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:155:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:816:in `harvest_http_responses'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:472:in `audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:711:in `clean_up!'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:226:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/ui/cli/cli.rb:105:in `block in run'
[-] undefined method `[]' for nil:NilClass
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:701:in `form_attrs'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:310:in `block in forms'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:306:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:306:in `forms'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/plugins/defaults/profiler.rb:114:in `find_landing_elements'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/plugins/defaults/profiler.rb:74:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/auditable.rb:385:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/auditable.rb:385:in `block in on_complete'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `block in call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:222:in `handle_request'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:186:in `block in get_easy_object'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `success'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `multi_perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:95:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:156:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:155:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:816:in `harvest_http_responses'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:798:in `run_mods'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:464:in `block (2 levels) in audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:464:in `block in audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `block in call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:222:in `handle_request'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:186:in `block in get_easy_object'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `success'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `multi_perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:95:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:156:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:155:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:816:in `harvest_http_responses'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:472:in `audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:711:in `clean_up!'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:226:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/ui/cli/cli.rb:105:in `block in run'
[-] undefined method `[]' for nil:NilClass
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:701:in `form_attrs'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:310:in `block in forms'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:306:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:306:in `forms'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/plugins/defaults/profiler.rb:114:in `find_landing_elements'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/plugins/defaults/profiler.rb:74:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/auditable.rb:385:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/auditable.rb:385:in `block in on_complete'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `block in call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:222:in `handle_request'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:186:in `block in get_easy_object'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `success'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `multi_perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:95:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:156:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:155:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:816:in `harvest_http_responses'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:798:in `run_mods'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:464:in `block (2 levels) in audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:464:in `block in audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `block in call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:222:in `handle_request'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:186:in `block in get_easy_object'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `success'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `multi_perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:95:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:156:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:155:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:816:in `harvest_http_responses'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:472:in `audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:711:in `clean_up!'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:226:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/ui/cli/cli.rb:105:in `block in run'
[-] undefined method `[]' for nil:NilClass
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:701:in `form_attrs'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:310:in `block in forms'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:306:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:306:in `forms'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/plugins/defaults/profiler.rb:114:in `find_landing_elements'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/plugins/defaults/profiler.rb:74:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/auditable.rb:385:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/auditable.rb:385:in `block in on_complete'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `block in call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:222:in `handle_request'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:186:in `block in get_easy_object'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `success'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `multi_perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:95:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:156:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:155:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:816:in `harvest_http_responses'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:798:in `run_mods'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:464:in `block (2 levels) in audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:464:in `block in audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `block in call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `each'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `call_handlers'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:222:in `handle_request'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:186:in `block in get_easy_object'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `success'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `multi_perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `perform'
[-] /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:95:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:156:in `block in run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:155:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:816:in `harvest_http_responses'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:472:in `audit_queue'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:711:in `clean_up!'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:226:in `run'
[-] /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/ui/cli/cli.rb:105:in `block in run'
/usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:701:in `form_attrs': undefined method `[]' for nil:NilClass (NoMethodError)
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:310:in `block in forms'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:306:in `each'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/parser.rb:306:in `forms'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/plugins/defaults/profiler.rb:114:in `find_landing_elements'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/plugins/defaults/profiler.rb:74:in `block in run'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/auditable.rb:385:in `call'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/parser/auditable.rb:385:in `block in on_complete'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `call'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `block in call_handlers'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `each'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `call_handlers'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:222:in `handle_request'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:186:in `block in get_easy_object'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `call'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `success'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `multi_perform'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `perform'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:95:in `run'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:156:in `block in run'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:155:in `run'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:816:in `harvest_http_responses'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:798:in `run_mods'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:464:in `block (2 levels) in audit_queue'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:464:in `block in audit_queue'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `call'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:65:in `block in call_handlers'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `each'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/typhoeus/request.rb:64:in `call_handlers'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:222:in `handle_request'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:186:in `block in get_easy_object'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `call'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/easy.rb:362:in `success'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `multi_perform'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/multi.rb:21:in `perform'
from /usr/lib/ruby/gems/1.9.1/gems/typhoeus-0.3.3/lib/typhoeus/hydra.rb:95:in `run'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:156:in `block in run'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `call'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/module/utilities.rb:159:in `exception_jail'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/http.rb:155:in `run'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:816:in `harvest_http_responses'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:472:in `audit_queue'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:711:in `clean_up!'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/framework.rb:226:in `run'
from /usr/lib/ruby/gems/1.9.1/gems/arachni-0.4.0.2/lib/arachni/ui/cli/cli.rb:105:in `block in run'

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