From ba0d5f7a6df6ba5545c3ce0b09e107e10d082d49 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 20 Dec 2017 04:18:31 +0000
Subject: [PATCH 1/3] Fixed command Injection
* resolv.rb (Resolv::Hosts#lazy_initialize): fixed potential
command Injection in Hosts::new() by use of Kernel#open.
[Fix GH-1777] [ruby-core:84347] [Bug #14205]
From: Drigg3r <drigg3r@yandex.com>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61349 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
lib/resolv.rb | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/resolv.rb b/lib/resolv.rb
index 1044b95e68..56183b837d 100644
--- a/lib/resolv.rb
+++ b/lib/resolv.rb
@@ -186,7 +186,7 @@ def lazy_initialize # :nodoc:
unless @initialized
@name2addr = {}
@addr2name = {}
- open(@filename, 'rb') {|f|
+ File.open(@filename, 'rb') {|f|
f.each {|line|
line.sub!(/#.*/, '')
addr, hostname, *aliases = line.split(/\s+/)
--
2.15.1
From 0b6213635018ef73567388c1095ad1c556e1f4ee Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 20 Dec 2017 04:25:01 +0000
Subject: [PATCH 2/3] Fixed command Injection
* lib/resolv.rb (Resolv::Config.parse_resolv_conf): fixed
potential command injection by use of Kernel#open.
[ruby-core:84347] [Bug #14205]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61351 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
lib/resolv.rb | 2 +-
test/resolv/test_addr.rb | 11 +++++++++++
test/resolv/test_dns.rb | 10 ++++++++++
3 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/lib/resolv.rb b/lib/resolv.rb
index 56183b837d..48ee400efe 100644
--- a/lib/resolv.rb
+++ b/lib/resolv.rb
@@ -904,7 +904,7 @@ def Config.parse_resolv_conf(filename)
nameserver = []
search = nil
ndots = 1
- open(filename, 'rb') {|f|
+ File.open(filename, 'rb') {|f|
f.each {|line|
line.sub!(/[#;].*/, '')
keyword, *args = line.split(/\s+/)
diff --git a/test/resolv/test_addr.rb b/test/resolv/test_addr.rb
index 4a2df5bfca..78a28c9633 100644
--- a/test/resolv/test_addr.rb
+++ b/test/resolv/test_addr.rb
@@ -26,4 +26,15 @@ def test_invalid_byte_comment
end
end
end
+
+ def test_hosts_by_command
+ Dir.mktmpdir do |dir|
+ Dir.chdir(dir) do
+ hosts = Resolv::Hosts.new("|echo error")
+ assert_raise(Errno::ENOENT) do
+ hosts.each_name("") {}
+ end
+ end
+ end
+ end
end
diff --git a/test/resolv/test_dns.rb b/test/resolv/test_dns.rb
index f21a094b20..8236078374 100644
--- a/test/resolv/test_dns.rb
+++ b/test/resolv/test_dns.rb
@@ -176,6 +176,16 @@ def test_invalid_byte_comment
end
end
+ def test_resolv_conf_by_command
+ Dir.mktmpdir do |dir|
+ Dir.chdir(dir) do
+ assert_raise(Errno::ENOENT) do
+ Resolv::DNS::Config.parse_resolv_conf("|echo foo")
+ end
+ end
+ end
+ end
+
def test_dots_diffences
name1 = Resolv::DNS::Name.create("example.org")
name2 = Resolv::DNS::Name.create("ex.ampl.eo.rg")
--
2.15.1
From dd71a5a9a459dbda9b9a4786f6a0b5bd59a81aae Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 20 Dec 2017 16:04:41 +0000
Subject: [PATCH 3/3] fix test errors on Windows
* test/resolv/test_addr.rb (test_hosts_by_command): on Windows, `|` is
invalid charactor for path and raises `Errno::EINVAL` if trying to
open.
* test/resolv/test_dns.rb (test_resolv_conf_by_command): ditto.
cf. [Bug #14205]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61374 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
test/resolv/test_addr.rb | 2 +-
test/resolv/test_dns.rb | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/test/resolv/test_addr.rb b/test/resolv/test_addr.rb
index 78a28c9633..14ec2651ab 100644
--- a/test/resolv/test_addr.rb
+++ b/test/resolv/test_addr.rb
@@ -31,7 +31,7 @@ def test_hosts_by_command
Dir.mktmpdir do |dir|
Dir.chdir(dir) do
hosts = Resolv::Hosts.new("|echo error")
- assert_raise(Errno::ENOENT) do
+ assert_raise(Errno::ENOENT, Errno::EINVAL) do
hosts.each_name("") {}
end
end
diff --git a/test/resolv/test_dns.rb b/test/resolv/test_dns.rb
index 8236078374..1b44f32807 100644
--- a/test/resolv/test_dns.rb
+++ b/test/resolv/test_dns.rb
@@ -179,7 +179,7 @@ def test_invalid_byte_comment
def test_resolv_conf_by_command
Dir.mktmpdir do |dir|
Dir.chdir(dir) do
- assert_raise(Errno::ENOENT) do
+ assert_raise(Errno::ENOENT, Errno::EINVAL) do
Resolv::DNS::Config.parse_resolv_conf("|echo foo")
end
end
--
2.15.1