Segmentation fault - Ubuntu 20.04 (Minimal Version CLI)

[afonsofsgomes]

Hi, After many trys of installing Arachni, I keep always getting the same segmentation fault error. It may be related with /ffi lib since the code error I obtain starts with: /root/arachni-1.6.1-0.6.1/.system/gems/gems/ffi-1.15.5/lib/ffi/library.rb:401: [BUG] Illegal instruction at 0x00007f942cbae3c0 I 'm running the GLIBC lib in version 2.31 : ldd (Ubuntu GLIBC 2.31-0ubuntu9.7) 2.31.

I even installed Google Chrome, but it was worthless.

Dump: `/root/arachni-1.6.1-0.6.1/.system/gems/gems/ffi-1.15.5/lib/ffi/library.rb:401: [BUG] Illegal instruction at 0x00007f942cbae3c0 ruby 2.7.5p203 (2021-11-24 revision f69aeb8314) [x86_64-linux]

-- Control frame information ----------------------------------------------- c:0053 p:---- s:0288 e:000287 CFUNC :initialize c:0052 p:---- s:0285 e:000284 CFUNC :new c:0051 p:0219 s:0278 e:000277 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/ffi-1.15.5/lib/ffi/library.rb:401 c:0050 p:0167 s:0266 e:000265 CLASS /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-2.4.0/lib/sassc/native.rb:31 c:0049 p:0007 s:0262 e:000261 CLASS /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-2.4.0/lib/sassc/native.rb:6 c:0048 p:0013 s:0259 e:000258 TOP /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-2.4.0/lib/sassc/native.rb:5 [FINISH] c:0047 p:---- s:0256 e:000255 CFUNC :require_relative c:0046 p:0019 s:0251 e:000250 TOP /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-2.4.0/lib/sassc.rb:31 [FINISH] c:0045 p:---- s:0248 e:000247 CFUNC :require c:0044 p:0007 s:0243 e:000242 BLOCK /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325 c:0043 p:0068 s:0240 e:000239 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291 c:0042 p:0010 s:0233 e:000232 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325 c:0041 p:0011 s:0227 e:000226 TOP /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-rails-2.1.2/lib/sassc/rails.rb:5 [FINISH] c:0040 p:---- s:0224 e:000223 CFUNC :require c:0039 p:0007 s:0219 e:000218 BLOCK /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325 c:0038 p:0068 s:0216 e:000215 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291 c:0037 p:0010 s:0209 e:000208 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325 c:0036 p:0005 s:0203 e:000202 TOP /root/arachni-1.6.1-0.6.1/.system/gems/gems/sass-rails-6.0.0/lib/sass-rails.rb:1 [FINISH] c:0035 p:---- s:0200 e:000199 CFUNC :require c:0034 p:0007 s:0195 e:000194 BLOCK /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325 c:0033 p:0068 s:0192 e:000191 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291 c:0032 p:0010 s:0185 e:000184 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325 c:0031 p:0047 s:0179 e:000178 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/bootstrap-sass-2.3.1.0/lib/bootstrap-sass.rb:14 c:0030 p:0019 s:0174 e:000173 TOP /root/arachni-1.6.1-0.6.1/.system/gems/gems/bootstrap-sass-2.3.1.0/lib/bootstrap-sass.rb:45 [FINISH] c:0029 p:---- s:0171 e:000170 CFUNC :require c:0028 p:0032 s:0166 e:000165 BLOCK /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler/runtime.rb:60 [FINISH] c:0027 p:---- s:0161 e:000160 CFUNC :each c:0026 p:0042 s:0157 e:000156 BLOCK /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler/runtime.rb:55 [FINISH] c:0025 p:---- s:0150 e:000149 CFUNC :each c:0024 p:0026 s:0146 e:000145 METHOD /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler/runtime.rb:44 c:0023 p:0013 s:0141 e:000140 METHOD /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler.rb:176 c:0022 p:0062 s:0136 e:000135 TOP /root/arachni-1.6.1-0.6.1/.system/arachni-ui-web/config/application.rb:15 [FINISH] c:0021 p:---- s:0133 e:000132 CFUNC :require c:0020 p:0195 s:0128 e:000127 METHOD /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/rubygems/core_ext/kernel_require.rb:85 c:0019 p:0068 s:0111 e:000110 TOP /root/arachni-1.6.1-0.6.1/.system/arachni-ui-web/config/environment.rb:13 [FINISH] c:0018 p:---- s:0108 e:000107 CFUNC :require c:0017 p:0195 s:0103 e:000102 METHOD /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/rubygems/core_ext/kernel_require.rb:85 c:0016 p:0021 s:0086 e:000085 EVAL /root/arachni-1.6.1-0.6.1/.system/arachni-ui-web/config.ru:3 [FINISH] c:0015 p:---- s:0083 e:000082 CFUNC :eval c:0014 p:0033 s:0076 e:000075 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/builder.rb:116 c:0013 p:0135 s:0068 e:000067 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/builder.rb:105 c:0012 p:0032 s:0059 e:000058 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/builder.rb:66 c:0011 p:0078 s:0052 e:000051 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:349 c:0010 p:0031 s:0046 e:000045 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:249 c:0009 p:0018 s:0042 e:000040 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:422 c:0008 p:0004 s:0037 e:000036 BLOCK /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:312 c:0007 p:0092 s:0034 e:000033 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:379 c:0006 p:0131 s:0027 e:000026 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:311 c:0005 p:0010 s:0021 e:000020 METHOD /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:168 c:0004 p:0021 s:0016 e:000015 TOP /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/bin/rackup:5 [FINISH] c:0003 p:---- s:0013 e:000012 CFUNC :load c:0002 p:0124 s:0008 E:0018d0 EVAL /root/arachni-1.6.1-0.6.1/bin/../.system/gems/bin/rackup:25 [FINISH] c:0001 p:0000 s:0003 E:0012d0 (none) [FINISH]

-- Ruby level backtrace information ---------------------------------------- /root/arachni-1.6.1-0.6.1/bin/../.system/gems/bin/rackup:25:in <main>' /root/arachni-1.6.1-0.6.1/bin/../.system/gems/bin/rackup:25:inload' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/bin/rackup:5:in <top (required)>' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:168:instart' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:311:in start' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:379:inhandle_profiling' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:312:in block in start' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:422:inwrapped_app' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:249:in app' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/server.rb:349:inbuild_app_and_options_from_config' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/builder.rb:66:in parse_file' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/builder.rb:105:inload_file' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/builder.rb:116:in new_from_string' /root/arachni-1.6.1-0.6.1/.system/gems/gems/rack-2.2.3/lib/rack/builder.rb:116:ineval' /root/arachni-1.6.1-0.6.1/.system/arachni-ui-web/config.ru:3:in block in <main>' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/rubygems/core_ext/kernel_require.rb:85:inrequire' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/rubygems/core_ext/kernel_require.rb:85:in require' /root/arachni-1.6.1-0.6.1/.system/arachni-ui-web/config/environment.rb:13:in<top (required)>' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/rubygems/core_ext/kernel_require.rb:85:in require' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/rubygems/core_ext/kernel_require.rb:85:inrequire' /root/arachni-1.6.1-0.6.1/.system/arachni-ui-web/config/application.rb:15:in <top (required)>' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler.rb:176:inrequire' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler/runtime.rb:44:in require' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler/runtime.rb:44:ineach' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler/runtime.rb:55:in block in require' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler/runtime.rb:55:ineach' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler/runtime.rb:60:in block (2 levels) in require' /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler/runtime.rb:60:inrequire' /root/arachni-1.6.1-0.6.1/.system/gems/gems/bootstrap-sass-2.3.1.0/lib/bootstrap-sass.rb:45:in <top (required)>' /root/arachni-1.6.1-0.6.1/.system/gems/gems/bootstrap-sass-2.3.1.0/lib/bootstrap-sass.rb:14:inload!' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in require' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291:inload_dependency' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in block in require' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:inrequire' /root/arachni-1.6.1-0.6.1/.system/gems/gems/sass-rails-6.0.0/lib/sass-rails.rb:1:in <top (required)>' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:inrequire' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291:in load_dependency' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:inblock in require' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in require' /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-rails-2.1.2/lib/sassc/rails.rb:5:in<top (required)>' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in require' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:291:inload_dependency' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:in block in require' /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325:inrequire' /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-2.4.0/lib/sassc.rb:31:in <top (required)>' /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-2.4.0/lib/sassc.rb:31:inrequire_relative' /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-2.4.0/lib/sassc/native.rb:5:in <top (required)>' /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-2.4.0/lib/sassc/native.rb:6:in' /root/arachni-1.6.1-0.6.1/.system/gems/gems/sassc-2.4.0/lib/sassc/native.rb:31:in <module:Native>' /root/arachni-1.6.1-0.6.1/.system/gems/gems/ffi-1.15.5/lib/ffi/library.rb:401:incallback' /root/arachni-1.6.1-0.6.1/.system/gems/gems/ffi-1.15.5/lib/ffi/library.rb:401:in new' /root/arachni-1.6.1-0.6.1/.system/gems/gems/ffi-1.15.5/lib/ffi/library.rb:401:ininitialize'

-- Machine register context ------------------------------------------------ RIP: 0x00007f942cbae3c0 RBP: 0x0000559efbf11540 RSP: 0x00007ffd7f94e248 RAX: 0x0000000000000000 RBX: 0x0000559efc5d9280 RCX: 0x00007f942cbb8060 RDX: 0x0000000000000002 RDI: 0x0000559efc5d92c8 RSI: 0x0000000000000002 R8: 0x0000559efc0d3360 R9: 0x0000559efa563d80 R10: 0xfffffffffffff805 R11: 0x00007f942cbae3b0 R12: 0x0000000000000002 R13: 0x0000559efc5ae9e8 R14: 0x0000559efc5ae948 R15: 0x0000559efc798b38 EFL: 0x0000000000010293`

This output comes out after running: ./bin/arachni_web or ./bin/arachni

**Complete dump on attached txt. arachni_output.txt

[afonsofsgomes]

Running with debug option:

nil ExceptionNameError' at /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/site_ruby/2.7.0/bundler/rubygems_integration.rb:415 - method gem' not defined in #<Class:Kernel> ExceptionNameError' at /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/2.7.0/psych/class_loader.rb:68 - uninitialized constant BigDecimal Exception NameError' at /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/2.7.0/psych/class_loader.rb:68 - uninitialized constant Date Did you mean? Data ExceptionNameError' at /root/arachni-1.6.1-0.6.1/.system/usr/lib/ruby/2.7.0/psych/class_loader.rb:68 - uninitialized constant DateTime Did you mean? DateAndTime Using Ext extension for JSON. Exception LoadError' at /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325 - cannot load such file -- sqlite3/2.7/sqlite3_native ExceptionLoadError' at /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:295 - cannot load such file -- sqlite3/2.7/sqlite3_native Exception LoadError' at /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:325 - cannot load such file -- 2.7/ffi_c ExceptionLoadError' at /root/arachni-1.6.1-0.6.1/.system/gems/gems/activesupport-6.0.0/lib/active_support/dependencies.rb:295 - cannot load such file -- 2.7/ffi_c /root/arachni-1.6.1-0.6.1/.system/gems/gems/ffi-1.15.5/lib/ffi/library.rb:401: [BUG] Illegal instruction at 0x00007f9e2b4193c0 ruby 2.7.5p203 (2021-11-24 revision f69aeb8314) [x86_64-linux]`

[Zapotek]

I'm looking into this although I haven't been able to reproduce. You shouldn't run Arachni as root though, it can cause problems with Chrome.

I had updated the packages to check for this but GitHub must have not updated the release due to the packages having the same name as before.

[afonsofsgomes]

Hi! I was able to work around this issue by using Debian 11 with experimental Software Packages. I think it might be useful to mention experimental repos, if you use it, the GLIBC will upgrade to the latest version.