Usr/lib/ruby/gems/3.1.0/gems/zeitwerk-2.5.3/lib/zeitwerk/kernel.rb:35:in `require': cannot load such file -- net/smtp (LoadError)

[REALXLOLX]

How to solve this ? sr/lib/ruby/gems/3.1.0/gems/zeitwerk-2.5.3/lib/zeitwerk/kernel.rb:35:in `require': cannot load such file -- net/smtp (LoadError)

[3V3RYONE]

This might be a result of broken gem installation. Did you get any error responses while running the command bundle install to install Metasploit?

[REALXLOLX]

This might be a result of broken gem installation. Did you get any error responses while running the command bundle install to install Metasploit?

Yes bro

[bcoles]

This might be a result of broken gem installation. Did you get any error responses while running the command bundle install to install Metasploit?

Yes bro

What errors do you get?

---

It looks like this might be a bug due to updates in Ruby 3.1.

https://www.ruby-lang.org/en/news/2021/12/25/ruby-3-1-0-released/

The following default gems are now bundled gems. You need to add the following libraries to Gemfile under the bundler environment.

net-ftp 0.1.3
net-imap 0.2.2
net-pop 0.1.1
net-smtp 0.3.1
matrix 0.4.2
prime 0.1.2
debug 1.4.0

This may resolved by adding 'net-smtp' to the Gemspec.

diff --git a/metasploit-framework.gemspec b/metasploit-framework.gemspec
index bb66725c7e..00f56e5d49 100644
--- a/metasploit-framework.gemspec
+++ b/metasploit-framework.gemspec
@@ -142,6 +142,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency 'bcrypt_pbkdf'
   spec.add_runtime_dependency 'ruby_smb', '~> 3.0'
   spec.add_runtime_dependency 'net-ldap'
+  spec.add_runtime_dependency 'net-smtp'
   spec.add_runtime_dependency 'winrm'

   #

However, this may break Metasploit on older versions of Ruby. I bricked my install after this change, although possibly due to unrelated reasons. (Edit: bricking was coincidence. unrelated to this change.)

# ruby --version
ruby 2.7.4p191 (2021-07-07 revision a21a3b7d23) [x86_64-linux-gnu]
# ./msfconsole 
Traceback (most recent call last):
    17: from ./msfconsole:18:in `<main>'
    16: from ./msfconsole:18:in `require'
    15: from /root/Desktop/metasploit-framework/lib/msfenv.rb:17:in `<top (required)>'
    14: from /root/Desktop/metasploit-framework/lib/msfenv.rb:17:in `require'
    13: from /root/Desktop/metasploit-framework/config/environment.rb:2:in `<top (required)>'
    12: from /root/Desktop/metasploit-framework/config/environment.rb:2:in `require'
    11: from /root/Desktop/metasploit-framework/config/application.rb:1:in `<top (required)>'
    10: from /root/Desktop/metasploit-framework/config/application.rb:1:in `require'
     9: from /var/lib/gems/2.7.0/gems/railties-6.1.4.4/lib/rails.rb:13:in `<top (required)>'
     8: from /var/lib/gems/2.7.0/gems/railties-6.1.4.4/lib/rails.rb:13:in `require'
     7: from /var/lib/gems/2.7.0/gems/railties-6.1.4.4/lib/rails/application.rb:6:in `<top (required)>'
     6: from /var/lib/gems/2.7.0/gems/railties-6.1.4.4/lib/rails/application.rb:6:in `require'
     5: from /var/lib/gems/2.7.0/gems/activesupport-6.1.4.4/lib/active_support/key_generator.rb:4:in `<top (required)>'
     4: from /var/lib/gems/2.7.0/gems/activesupport-6.1.4.4/lib/active_support/key_generator.rb:4:in `require'
     3: from /usr/lib/ruby/2.7.0/openssl.rb:18:in `<top (required)>'
     2: from /usr/lib/ruby/2.7.0/openssl.rb:18:in `require'
     1: from /usr/lib/ruby/2.7.0/openssl/config.rb:14:in `<top (required)>'
/usr/lib/ruby/2.7.0/openssl/config.rb:14:in `require': superclass mismatch for class StringIO (TypeError)

[Dilovan200]

can someone write me the exact command step by step how i can do it have exactly the same problem

[bcoles]

can someone write me the exact command step by step how i can do it have exactly the same problem

This might work if you're using Metasploit from git.

cd to the git repository and paste the following patch into smtp.patch:

diff --git a/metasploit-framework.gemspec b/metasploit-framework.gemspec
index 2f25088e8c..2dc7fcdcae 100644
--- a/metasploit-framework.gemspec
+++ b/metasploit-framework.gemspec
@@ -142,6 +142,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency 'bcrypt_pbkdf'
   spec.add_runtime_dependency 'ruby_smb', '~> 3.0'
   spec.add_runtime_dependency 'net-ldap'
+  spec.add_runtime_dependency 'net-smtp', '~> 0.3.1'
   spec.add_runtime_dependency 'winrm'

   #

Apply the patch with git apply smtp.patch. Run bundle install.

[github-actions[bot]]

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[RRA876]

I am facing the same problem Can anyone tell the step by step commands to fix the issue

[bcoles]

I am facing the same problem Can anyone tell the step by step commands to fix the issue

This may or may not work.

https://github.com/rapid7/metasploit-framework/issues/16080#issuecomment-1025080513

[RRA876]

This doesn't work please tell another solution

[your-olym]

when I started the beef ,I got

/Users/dsa/c/bin/beef-0.5.4.0/extensions/social_engineering/mass_mailer/mass_mailer.rb:10:in `require': cannot load such file -- net/smtp (LoadError)
    from /Users/dsa/c/bin/beef-0.5.4.0/extensions/social_engineering/mass_mailer/mass_mailer.rb:10:in `<class:MassMailer>'
    from /Users/dsa/c/bin/beef-0.5.4.0/extensions/social_engineering/mass_mailer/mass_mailer.rb:9:in `<module:SocialEngineering>'

,and I don't know where to paste the code. there was no error when I made command "./install" and I used it on mac OS -- catalina.

[bcoles]

when I started the beef ,I got

This is the Metasploit issue tracker. BeEF is over here: https://github.com/beefproject/beef/issues

That said, it looks like a Ruby 3 issue. BeEF does not yet fully support Ruby 3.