diff --git lib/rubygems.rb lib/rubygems.rb
index 0685bcb3c6..a5a9202e56 100644
--- lib/rubygems.rb
+++ lib/rubygems.rb
@@ -10,7 +10,7 @@
require 'thread'
module Gem
- VERSION = "2.6.14"
+ VERSION = "2.6.14.1"
end
# Must be first since it unloads the prelude from 1.9.2
diff --git lib/rubygems/commands/owner_command.rb lib/rubygems/commands/owner_command.rb
index 4b99434e87..2ee7f84462 100644
--- lib/rubygems/commands/owner_command.rb
+++ lib/rubygems/commands/owner_command.rb
@@ -62,7 +62,7 @@ def show_owners name
end
with_response response do |resp|
- owners = YAML.load resp.body
+ owners = Gem::SafeYAML.load resp.body
say "Owners for gem: #{name}"
owners.each do |owner|
diff --git lib/rubygems/package.rb lib/rubygems/package.rb
index 77811ed5ec..b5a5fe2a26 100644
--- lib/rubygems/package.rb
+++ lib/rubygems/package.rb
@@ -378,7 +378,7 @@ def extract_tar_gz io, destination_dir, pattern = "*" # :nodoc:
File.dirname destination
end
- FileUtils.mkdir_p mkdir, mkdir_options
+ mkdir_p_safe mkdir, mkdir_options, destination_dir, entry.full_name
open destination, 'wb' do |out|
out.write entry.read
@@ -416,20 +416,35 @@ def install_location filename, destination_dir # :nodoc:
raise Gem::Package::PathError.new(filename, destination_dir) if
filename.start_with? '/'
- destination_dir = File.realpath destination_dir if
- File.respond_to? :realpath
+ destination_dir = realpath destination_dir
destination_dir = File.expand_path destination_dir
destination = File.join destination_dir, filename
destination = File.expand_path destination
raise Gem::Package::PathError.new(destination, destination_dir) unless
- destination.start_with? destination_dir
+ destination.start_with? destination_dir + '/'
destination.untaint
destination
end
+ def mkdir_p_safe mkdir, mkdir_options, destination_dir, file_name
+ destination_dir = realpath File.expand_path(destination_dir)
+ parts = mkdir.split(File::SEPARATOR)
+ parts.reduce do |path, basename|
+ path = realpath path unless path == ""
+ path = File.expand_path(path + File::SEPARATOR + basename)
+ lstat = File.lstat path rescue nil
+ if !lstat || !lstat.directory?
+ unless path.start_with? destination_dir and (FileUtils.mkdir path, mkdir_options rescue false)
+ raise Gem::Package::PathError.new(file_name, destination_dir)
+ end
+ end
+ path
+ end
+ end
+
##
# Loads a Gem::Specification from the TarEntry +entry+
@@ -603,6 +618,10 @@ def verify_files gem
raise Gem::Package::FormatError.new \
'package content (data.tar.gz) is missing', @gem
end
+
+ if duplicates = @files.group_by {|f| f }.select {|k,v| v.size > 1 }.map(&:first) and duplicates.any?
+ raise Gem::Security::Exception, "duplicate files in the package: (#{duplicates.map(&:inspect).join(', ')})"
+ end
end
##
@@ -616,6 +635,16 @@ def verify_gz entry # :nodoc:
raise Gem::Package::FormatError.new(e.message, entry.full_name)
end
+ if File.respond_to? :realpath
+ def realpath file
+ File.realpath file
+ end
+ else
+ def realpath file
+ file
+ end
+ end
+
end
require 'rubygems/package/digest_io'
diff --git lib/rubygems/package/tar_header.rb lib/rubygems/package/tar_header.rb
index c54bd14d57..d557357114 100644
--- lib/rubygems/package/tar_header.rb
+++ lib/rubygems/package/tar_header.rb
@@ -104,25 +104,30 @@ def self.from(stream)
fields = header.unpack UNPACK_FORMAT
new :name => fields.shift,
- :mode => fields.shift.oct,
- :uid => fields.shift.oct,
- :gid => fields.shift.oct,
- :size => fields.shift.oct,
- :mtime => fields.shift.oct,
- :checksum => fields.shift.oct,
+ :mode => strict_oct(fields.shift),
+ :uid => strict_oct(fields.shift),
+ :gid => strict_oct(fields.shift),
+ :size => strict_oct(fields.shift),
+ :mtime => strict_oct(fields.shift),
+ :checksum => strict_oct(fields.shift),
:typeflag => fields.shift,
:linkname => fields.shift,
:magic => fields.shift,
- :version => fields.shift.oct,
+ :version => strict_oct(fields.shift),
:uname => fields.shift,
:gname => fields.shift,
- :devmajor => fields.shift.oct,
- :devminor => fields.shift.oct,
+ :devmajor => strict_oct(fields.shift),
+ :devminor => strict_oct(fields.shift),
:prefix => fields.shift,
:empty => empty
end
+ def self.strict_oct(str)
+ return str.oct if str =~ /\A[0-7]*\z/
+ raise ArgumentError, "#{str.inspect} is not an octal string"
+ end
+
##
# Creates a new TarHeader using +vals+
diff --git lib/rubygems/package/tar_writer.rb lib/rubygems/package/tar_writer.rb
index f68b8d4c5e..390f7851a3 100644
--- lib/rubygems/package/tar_writer.rb
+++ lib/rubygems/package/tar_writer.rb
@@ -196,6 +196,8 @@ def add_file_signed name, mode, signer
digest_name == signer.digest_name
end
+ raise "no #{signer.digest_name} in #{digests.values.compact}" unless signature_digest
+
if signer.key then
signature = signer.sign signature_digest.digest
diff --git lib/rubygems/server.rb lib/rubygems/server.rb
index df4eb566d3..a7b5243ba0 100644
--- lib/rubygems/server.rb
+++ lib/rubygems/server.rb
@@ -631,6 +631,18 @@ def root(req, res)
executables = nil if executables.empty?
executables.last["is_last"] = true if executables
+ # Pre-process spec homepage for safety reasons
+ begin
+ homepage_uri = URI.parse(spec.homepage)
+ if [URI::HTTP, URI::HTTPS].member? homepage_uri.class
+ homepage_uri = spec.homepage
+ else
+ homepage_uri = "."
+ end
+ rescue URI::InvalidURIError
+ homepage_uri = "."
+ end
+
specs << {
"authors" => spec.authors.sort.join(", "),
"date" => spec.date.to_s,
@@ -640,7 +652,7 @@ def root(req, res)
"only_one_executable" => (executables && executables.size == 1),
"full_name" => spec.full_name,
"has_deps" => !deps.empty?,
- "homepage" => spec.homepage,
+ "homepage" => homepage_uri,
"name" => spec.name,
"rdoc_installed" => Gem::RDoc.new(spec).rdoc_installed?,
"ri_installed" => Gem::RDoc.new(spec).ri_installed?,
diff --git lib/rubygems/specification.rb lib/rubygems/specification.rb
index 40e3a70d47..0a154b9001 100644
--- lib/rubygems/specification.rb
+++ lib/rubygems/specification.rb
@@ -15,6 +15,7 @@
require 'rubygems/stub_specification'
require 'rubygems/util/list'
require 'stringio'
+require 'uri'
##
# The Specification class contains the information for a Gem. Typically
@@ -2813,10 +2814,16 @@ def validate packaging = true
raise Gem::InvalidSpecificationException, "#{lazy} is not a summary"
end
- if homepage and not homepage.empty? and
- homepage !~ /\A[a-z][a-z\d+.-]*:/i then
- raise Gem::InvalidSpecificationException,
- "\"#{homepage}\" is not a URI"
+ # Make sure a homepage is valid HTTP/HTTPS URI
+ if homepage and not homepage.empty?
+ begin
+ homepage_uri = URI.parse(homepage)
+ unless [URI::HTTP, URI::HTTPS].member? homepage_uri.class
+ raise Gem::InvalidSpecificationException, "\"#{homepage}\" is not a valid HTTP URI"
+ end
+ rescue URI::InvalidURIError
+ raise Gem::InvalidSpecificationException, "\"#{homepage}\" is not a valid HTTP URI"
+ end
end
# Warnings
diff --git test/rubygems/test_gem_commands_owner_command.rb test/rubygems/test_gem_commands_owner_command.rb
index 44652c1093..53cac4ce87 100644
--- test/rubygems/test_gem_commands_owner_command.rb
+++ test/rubygems/test_gem_commands_owner_command.rb
@@ -43,6 +43,31 @@ def test_show_owners
assert_match %r{- 4}, @ui.output
end
+ def test_show_owners_dont_load_objects
+ skip "testing a psych-only API" unless defined?(::Psych::DisallowedClass)
+
+ response = <<EOF
+---
+- email: !ruby/object:Object {}
+ id: 1
+ handle: user1
+- email: user2@example.com
+- id: 3
+ handle: user3
+- id: 4
+EOF
+
+ @fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners.yaml"] = [response, 200, 'OK']
+
+ assert_raises Psych::DisallowedClass do
+ use_ui @ui do
+ @cmd.show_owners("freewill")
+ end
+ end
+
+ end
+
+
def test_show_owners_setting_up_host_through_env_var
response = "- email: user1@example.com\n"
host = "http://rubygems.example"
diff --git test/rubygems/test_gem_package.rb test/rubygems/test_gem_package.rb
index 9d47f0dea4..5b93475314 100644
--- test/rubygems/test_gem_package.rb
+++ test/rubygems/test_gem_package.rb
@@ -455,6 +455,31 @@ def test_extract_tar_gz_symlink_relative_path
File.read(extracted)
end
+ def test_extract_symlink_parent
+ skip 'symlink not supported' if Gem.win_platform?
+
+ package = Gem::Package.new @gem
+
+ tgz_io = util_tar_gz do |tar|
+ tar.mkdir 'lib', 0755
+ tar.add_symlink 'lib/link', '../..', 0644
+ tar.add_file 'lib/link/outside.txt', 0644 do |io| io.write 'hi' end
+ end
+
+ # Extract into a subdirectory of @destination; if this test fails it writes
+ # a file outside destination_subdir, but we want the file to remain inside
+ # @destination so it will be cleaned up.
+ destination_subdir = File.join @destination, 'subdir'
+ FileUtils.mkdir_p destination_subdir
+
+ e = assert_raises Gem::Package::PathError do
+ package.extract_tar_gz tgz_io, destination_subdir
+ end
+
+ assert_equal("installing into parent path lib/link/outside.txt of " +
+ "#{destination_subdir} is not allowed", e.message)
+ end
+
def test_extract_tar_gz_directory
package = Gem::Package.new @gem
@@ -566,6 +591,21 @@ def test_install_location_relative
"#{@destination} is not allowed", e.message)
end
+ def test_install_location_suffix
+ package = Gem::Package.new @gem
+
+ filename = "../#{File.basename(@destination)}suffix.rb"
+
+ e = assert_raises Gem::Package::PathError do
+ package.install_location filename, @destination
+ end
+
+ parent = File.expand_path File.join @destination, filename
+
+ assert_equal("installing into parent path #{parent} of " +
+ "#{@destination} is not allowed", e.message)
+ end
+
def test_load_spec
entry = StringIO.new Gem.gzip @spec.to_yaml
def entry.full_name() 'metadata.gz' end
@@ -723,6 +763,32 @@ def test_verify_nonexistent
assert_match %r%nonexistent.gem$%, e.message
end
+ def test_verify_duplicate_file
+ FileUtils.mkdir_p 'lib'
+ FileUtils.touch 'lib/code.rb'
+
+ build = Gem::Package.new @gem
+ build.spec = @spec
+ build.setup_signer
+ open @gem, 'wb' do |gem_io|
+ Gem::Package::TarWriter.new gem_io do |gem|
+ build.add_metadata gem
+ build.add_contents gem
+
+ gem.add_file_simple 'a.sig', 0444, 0
+ gem.add_file_simple 'a.sig', 0444, 0
+ end
+ end
+
+ package = Gem::Package.new @gem
+
+ e = assert_raises Gem::Security::Exception do
+ package.verify
+ end
+
+ assert_equal 'duplicate files in the package: ("a.sig")', e.message
+ end
+
def test_verify_security_policy
skip 'openssl is missing' unless defined?(OpenSSL::SSL)
@@ -780,7 +846,13 @@ def test_verify_security_policy_checksum_missing
# write bogus data.tar.gz to foil signature
bogus_data = Gem.gzip 'hello'
- gem.add_file_simple 'data.tar.gz', 0444, bogus_data.length do |io|
+ fake_signer = Class.new do
+ def digest_name; 'SHA512'; end
+ def digest_algorithm; Digest(:SHA512); end
+ def key; 'key'; end
+ def sign(*); 'fake_sig'; end
+ end
+ gem.add_file_signed 'data2.tar.gz', 0444, fake_signer.new do |io|
io.write bogus_data
end
diff --git test/rubygems/test_gem_package_tar_header.rb test/rubygems/test_gem_package_tar_header.rb
index d33877057d..43f508df45 100644
--- test/rubygems/test_gem_package_tar_header.rb
+++ test/rubygems/test_gem_package_tar_header.rb
@@ -143,5 +143,26 @@ def test_update_checksum
assert_equal '012467', @tar_header.checksum
end
+ def test_from_bad_octal
+ test_cases = [
+ "00000006,44\000", # bogus character
+ "00000006789\000", # non-octal digit
+ "+0000001234\000", # positive sign
+ "-0000001000\000", # negative sign
+ "0x000123abc\000", # radix prefix
+ ]
+
+ test_cases.each do |val|
+ header_s = @tar_header.to_s
+ # overwrite the size field
+ header_s[124, 12] = val
+ io = TempIO.new header_s
+ assert_raises ArgumentError do
+ new_header = Gem::Package::TarHeader.from io
+ end
+ io.close! if io.respond_to? :close!
+ end
+ end
+
end
diff --git test/rubygems/test_gem_server.rb test/rubygems/test_gem_server.rb
index 4873fac5b6..96ed9194e9 100644
--- test/rubygems/test_gem_server.rb
+++ test/rubygems/test_gem_server.rb
@@ -336,6 +336,171 @@ def test_root_gemdirs
assert_match 'z 9', @res.body
end
+
+ def test_xss_homepage_fix_289313
+ data = StringIO.new "GET / HTTP/1.0\r\n\r\n"
+ dir = "#{@gemhome}2"
+
+ spec = util_spec 'xsshomepagegem', 1
+ spec.homepage = "javascript:confirm(document.domain)"
+
+ specs_dir = File.join dir, 'specifications'
+ FileUtils.mkdir_p specs_dir
+
+ open File.join(specs_dir, spec.spec_name), 'w' do |io|
+ io.write spec.to_ruby
+ end
+
+ server = Gem::Server.new dir, process_based_port, false
+
+ @req.parse data
+
+ server.root @req, @res
+
+ assert_equal 200, @res.status
+ assert_match 'xsshomepagegem 1', @res.body
+
+ # This verifies that the homepage for this spec is not displayed and is set to ".", because it's not a
+ # valid HTTP/HTTPS URL and could be unsafe in an HTML context. We would prefer to throw an exception here,
+ # but spec.homepage is currently free form and not currently required to be a URL, this behavior may be
+ # validated in future versions of Gem::Specification.
+ #
+ # There are two variant we're checking here, one where rdoc is not present, and one where rdoc is present in the same regex:
+ #
+ # Variant #1 - rdoc not installed
+ #
+ # <b>xsshomepagegem 1</b>
+ #
+ #
+ # <span title="rdoc not installed">[rdoc]</span>
+ #
+ #
+ #
+ # <a href="." title=".">[www]</a>
+ #
+ # Variant #2 - rdoc installed
+ #
+ # <b>xsshomepagegem 1</b>
+ #
+ #
+ # <a href="\/doc_root\/xsshomepagegem-1\/">\[rdoc\]<\/a>
+ #
+ #
+ #
+ # <a href="." title=".">[www]</a>
+ regex_match = /xsshomepagegem 1<\/b>[\n\s]+(<span title="rdoc not installed">\[rdoc\]<\/span>|<a href="\/doc_root\/xsshomepagegem-1\/">\[rdoc\]<\/a>)[\n\s]+<a href="\." title="\.">\[www\]<\/a>/
+ assert_match regex_match, @res.body
+ end
+
+ def test_invalid_homepage
+ data = StringIO.new "GET / HTTP/1.0\r\n\r\n"
+ dir = "#{@gemhome}2"
+
+ spec = util_spec 'invalidhomepagegem', 1
+ spec.homepage = "notavalidhomepageurl"
+
+ specs_dir = File.join dir, 'specifications'
+ FileUtils.mkdir_p specs_dir
+
+ open File.join(specs_dir, spec.spec_name), 'w' do |io|
+ io.write spec.to_ruby
+ end
+
+ server = Gem::Server.new dir, process_based_port, false
+
+ @req.parse data
+
+ server.root @req, @res
+
+ assert_equal 200, @res.status
+ assert_match 'invalidhomepagegem 1', @res.body
+
+ # This verifies that the homepage for this spec is not displayed and is set to ".", because it's not a
+ # valid HTTP/HTTPS URL and could be unsafe in an HTML context. We would prefer to throw an exception here,
+ # but spec.homepage is currently free form and not currently required to be a URL, this behavior may be
+ # validated in future versions of Gem::Specification.
+ #
+ # There are two variant we're checking here, one where rdoc is not present, and one where rdoc is present in the same regex:
+ #
+ # Variant #1 - rdoc not installed
+ #
+ # <b>invalidhomepagegem 1</b>
+ #
+ #
+ # <span title="rdoc not installed">[rdoc]</span>
+ #
+ #
+ #
+ # <a href="." title=".">[www]</a>
+ #
+ # Variant #2 - rdoc installed
+ #
+ # <b>invalidhomepagegem 1</b>
+ #
+ #
+ # <a href="\/doc_root\/invalidhomepagegem-1\/">\[rdoc\]<\/a>
+ #
+ #
+ #
+ # <a href="." title=".">[www]</a>
+ regex_match = /invalidhomepagegem 1<\/b>[\n\s]+(<span title="rdoc not installed">\[rdoc\]<\/span>|<a href="\/doc_root\/invalidhomepagegem-1\/">\[rdoc\]<\/a>)[\n\s]+<a href="\." title="\.">\[www\]<\/a>/
+ assert_match regex_match, @res.body
+ end
+
+ def test_valid_homepage_http
+ data = StringIO.new "GET / HTTP/1.0\r\n\r\n"
+ dir = "#{@gemhome}2"
+
+ spec = util_spec 'validhomepagegemhttp', 1
+ spec.homepage = "http://rubygems.org"
+
+ specs_dir = File.join dir, 'specifications'
+ FileUtils.mkdir_p specs_dir
+
+ open File.join(specs_dir, spec.spec_name), 'w' do |io|
+ io.write spec.to_ruby
+ end
+
+ server = Gem::Server.new dir, process_based_port, false
+
+ @req.parse data
+
+ server.root @req, @res
+
+ assert_equal 200, @res.status
+ assert_match 'validhomepagegemhttp 1', @res.body
+
+ regex_match = /validhomepagegemhttp 1<\/b>[\n\s]+(<span title="rdoc not installed">\[rdoc\]<\/span>|<a href="\/doc_root\/validhomepagegemhttp-1\/">\[rdoc\]<\/a>)[\n\s]+<a href="http:\/\/rubygems\.org" title="http:\/\/rubygems\.org">\[www\]<\/a>/
+ assert_match regex_match, @res.body
+ end
+
+ def test_valid_homepage_https
+ data = StringIO.new "GET / HTTP/1.0\r\n\r\n"
+ dir = "#{@gemhome}2"
+
+ spec = util_spec 'validhomepagegemhttps', 1
+ spec.homepage = "https://rubygems.org"
+
+ specs_dir = File.join dir, 'specifications'
+ FileUtils.mkdir_p specs_dir
+
+ open File.join(specs_dir, spec.spec_name), 'w' do |io|
+ io.write spec.to_ruby
+ end
+
+ server = Gem::Server.new dir, process_based_port, false
+
+ @req.parse data
+
+ server.root @req, @res
+
+ assert_equal 200, @res.status
+ assert_match 'validhomepagegemhttps 1', @res.body
+
+ regex_match = /validhomepagegemhttps 1<\/b>[\n\s]+(<span title="rdoc not installed">\[rdoc\]<\/span>|<a href="\/doc_root\/validhomepagegemhttps-1\/">\[rdoc\]<\/a>)[\n\s]+<a href="https:\/\/rubygems\.org" title="https:\/\/rubygems\.org">\[www\]<\/a>/
+ assert_match regex_match, @res.body
+ end
+
def test_specs
data = StringIO.new "GET /specs.#{Gem.marshal_version} HTTP/1.0\r\n\r\n"
@req.parse data
diff --git test/rubygems/test_gem_specification.rb test/rubygems/test_gem_specification.rb
index 0fcc11e78f..1c68826fb3 100644
--- test/rubygems/test_gem_specification.rb
+++ test/rubygems/test_gem_specification.rb
@@ -2890,7 +2890,22 @@ def test_validate_homepage
@a1.validate
end
- assert_equal '"over at my cool site" is not a URI', e.message
+ assert_equal '"over at my cool site" is not a valid HTTP URI', e.message
+
+ @a1.homepage = 'ftp://rubygems.org'
+
+ e = assert_raises Gem::InvalidSpecificationException do
+ @a1.validate
+ end
+
+ assert_equal '"ftp://rubygems.org" is not a valid HTTP URI', e.message
+
+ @a1.homepage = 'http://rubygems.org'
+ assert_equal true, @a1.validate
+
+ @a1.homepage = 'https://rubygems.org'
+ assert_equal true, @a1.validate
+
end
end