Class: ContainerFileSystemShadow

Inherits:
Dockscan::Modules::AuditModule show all
Defined in:
lib/dockscan/modules/audit/container-filesystem-shadow.rb

Instance Attribute Summary

Attributes inherited from Dockscan::Modules::AuditModule

#scandata

Instance Method Summary collapse

Methods inherited from Dockscan::Modules::AuditModule

#idcontainer

Methods inherited from Dockscan::Modules::GenericModule

inherited, modules

Instance Method Details

#check(dockercheck) ⇒ Object 



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# File 'lib/dockscan/modules/audit/container-filesystem-shadow.rb', line 7

def check(dockercheck)
	sp=Dockscan::Scan::Plugin.new
	si=Dockscan::Scan::Issue.new
	si.title="Container have passwordless users in shadow"
	si.description="Container have vulnerable entries in /etc/shadow.\nIt allows attacker to login or switch to user without password."
	si.solution="It is recommended to set password for user or to lock user account."
	si.severity=6 # High
	si.risk = { "cvss" => 7.5 } 
	sp.vuln=si	
	sp.output=""
	if scandata.key?("GetContainers") and not scandata["GetContainers"].obj.empty?
		sp.state="run"
		scandata["GetContainers"].obj.each do |container|
			content=''
			container.copy('/etc/shadow') { |chunk| content=content+chunk }
			shcontent=''
			Gem::Package::TarReader.new(StringIO.new(content)) { |t| shcontent=t.first.read }
			# shcontent.split("\n").each do |line|
			shcontent.lines.map(&:chomp).each do |line|
				shfield=line.split(":")
				if shfield[1].to_s=='' then
					sp.state="vulnerable"
					sp.output << idcontainer(container) << " does not have password set for user: #{shfield[0]}\n"
				end
			end
		end
	end
	return sp
end

#info ⇒ Object 



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# File 'lib/dockscan/modules/audit/container-filesystem-shadow.rb', line 3

def info
	return 'This plugin checks /etc/shadow for problems'
end