wpscan install nokogiri issue

[ocervell]

When I try to install wpscan on a fresh Kali rolling Docker container using:

apt install -y build-essential ruby-dev rubygems
apt install -y libcurl4t64
gem install wpscan

It used to work fine till last week, now I'm getting the error when running wpscan:

<internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require': cannot load such file -- nokogiri/nokogiri (LoadError)
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from /var/lib/gems/3.1.0/gems/nokogiri-1.18.2-x86_64-linux/lib/nokogiri/extension.rb:31:in `rescue in <top (required)>'
        from /var/lib/gems/3.1.0/gems/nokogiri-1.18.2-x86_64-linux/lib/nokogiri/extension.rb:4:in `<top (required)>'
        from /var/lib/gems/3.1.0/gems/nokogiri-1.18.2-x86_64-linux/lib/nokogiri.rb:8:in `require_relative'
        from /var/lib/gems/3.1.0/gems/nokogiri-1.18.2-x86_64-linux/lib/nokogiri.rb:8:in `<top (required)>'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from /var/lib/gems/3.1.0/gems/cms_scanner-0.14.3/lib/cms_scanner.rb:5:in `<top (required)>'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from /var/lib/gems/3.1.0/gems/wpscan-3.8.27/lib/wpscan.rb:8:in `<top (required)>'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from /var/lib/gems/3.1.0/gems/wpscan-3.8.27/bin/wpscan:4:in `<top (required)>'
        from /usr/local/bin/wpscan:25:in `load'
        from /usr/local/bin/wpscan:25:in `<main>'
/var/lib/gems/3.1.0/gems/nokogiri-1.18.2-x86_64-linux/lib/nokogiri/extension.rb:7:in `require_relative': /lib/x86_64-linux-gnu/libc.so: invalid ELF header - /var/lib/gems/3.1.0/gems/nokogiri-1.18.2-x86_64-linux/lib/nokogiri/3.1/nokogiri.so (LoadError)
        from /var/lib/gems/3.1.0/gems/nokogiri-1.18.2-x86_64-linux/lib/nokogiri/extension.rb:7:in `<top (required)>'
        from /var/lib/gems/3.1.0/gems/nokogiri-1.18.2-x86_64-linux/lib/nokogiri.rb:8:in `require_relative'
        from /var/lib/gems/3.1.0/gems/nokogiri-1.18.2-x86_64-linux/lib/nokogiri.rb:8:in `<top (required)>'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from /var/lib/gems/3.1.0/gems/cms_scanner-0.14.3/lib/cms_scanner.rb:5:in `<top (required)>'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from /var/lib/gems/3.1.0/gems/wpscan-3.8.27/lib/wpscan.rb:8:in `<top (required)>'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from <internal:/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb>:86:in `require'
        from /var/lib/gems/3.1.0/gems/wpscan-3.8.27/bin/wpscan:4:in `<top (required)>'
        from /usr/local/bin/wpscan:25:in `load'
        from /usr/local/bin/wpscan:25:in `<main>'

I need to run:

gem uninstall nokogiri
gem install nokogiri --platform=ruby

to make it work again.

Can we fix the installation ?

[alexsanford]

I can reproduce this with the following:

Dockerfile

FROM kalilinux/kali-rolling

RUN apt update && apt install -y \
	build-essential \
	ruby-dev \
	rubygems \
	libcurl4-openssl-dev

RUN gem install wpscan

Makefile

all: build start

build:
	docker build -t wpscan_nokogiri:latest .

start:
	docker run -it --rm wpscan_nokogiri:latest /bin/bash

Running make and then wpscan --version inside the container gives the same error, and running gem uninstall nokogiri && gem install nokogiri --platform=ruby in the container makes it work.