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CVE-2019-5418_is_RCE.md Rails ã® CVE-2019-5418 ã¯ RCE (Remote code execution) ã§ã™ 2019-03-23 æ›´æ–° Remote Code Executionã¨ã—ã¦ã€AdvisoryãŒæ›´æ–°ã•ã‚ŒãŸã€‚ https://groups.google.com/d/msg/rubyonrails-security/zRNVOUhKHrg/GmmcVXcmAAAJ Thanks to @sorah @tenderlove å‰ç½®ã ã“ã‚Œã¯ä¼‘æ—¥ã«æ›¸ã„ãŸè¨˜äº‹ã§æ‰€å±žã—ã¦ã„ã‚‹çµ„ç¹”ã¨ã¯ä¸€åˆ‡ã®é–¢ä¿‚ãŒãªã„ã€‚ æ¦‚è¦ CVE-2019-5418 ã¯å®Ÿéš›ã®ã¨ã“ã‚é«˜ç¢ºçŽ‡ã§RCEãªã®ã ãŒ File Content Disclosure ã¨ã„ã†èžãæ…£ã‚Œãªã„åå‰ã§å…¬è¡¨ã•ã‚Œã¦ã€CVE-2019-5419 ã§ DoSãŒå‡ºæ¥ã‚‹ã¨ã„ã†å†…å®¹ã«ãªã£ã¦ã„ã‚‹ ã‚„ã‚ã€è„†å¼±æ€§ã®é–‹ç¤ºæ–¹
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require 'date' class AddBirthdayDateToUsers < ActiveRecord::Migration[5.1] def up add_column :users, :birthday_date, :date User.reset_column_information User.find_each do |u| birthday_date = Date.new(u.year, u.month, u.day) rescue nil u.update(birthday_date: birthday_date || User::UNKNOWN_BIRTHDAY) end change_column_null :users, :birthday_date, false end end ä¸Šè¨˜ã®ã‚ˆã†ã«ãƒžã‚¤ã‚°ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³å®Ÿè¡Œæ™‚ã«ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã§å®šç¾©ã—ãŸActiveRe
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Phusion Passenger author here. See https://github.com/phusion/passenger/issues/1286 for details.In short: Phusion Passenger sometimes spawns application processes (e.g. during startup). This spawning happens through bash. Some environment variables are set according to certain HTTP headers' values. We've been hoping the entire day that bash is going to be fixed "any time now", but the fix still is
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rryu 2014/09/28
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å‰è·ã¨ç¾è·ã§2ã‚¢ã‚¦ãƒˆæ¡ˆä»¶ã€‚ Railsã«é™ã‚‰ãªã„ã‘ã©ã€ãƒã‚°ã‚¤ãƒ³ãƒ¦ãƒ¼ã‚¶ã®æƒ…å ±ã‚’å¤‰æ›´ã™ã‚‹ã¨ãã¯ current_user ã¿ãŸã„ãªå¤‰æ•°ã‚’å¤‰æ›´ã™ã‚‹ã‚“ã˜ã‚ƒãªãã¦ã€DBã‚’å¼•ãç›´ã—ã¦æ›´æ–°ã—ã¾ã—ã‚‡ã†ã£ã¦è©±ã€‚ ãƒ€ãƒ¡ãªä¾‹ class ProfileController def update if current_user.update(profile_params) redirect_to :root else render :edit end end end è‰¯ã„ä¾‹ class ProfileController def update @user = User.find(current_user) if @user.update(profile_params) redirect_to :root else render :edit end end end ãªã‚“ã§ã ã‚ãªã®ï¼Ÿ ãƒãƒªãƒ‡ãƒ¼ã‚·ãƒ§ãƒ³ã‚¨ãƒ©ãƒ¼ãŒèµ·ããŸæ™‚ã«
rryu 2014/09/12
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rryu 2014/06/27
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Last Updated on: 2018å¹´8æœˆ13æ—¥å…ˆæ—¥ã¯Active Recordã®SQLã‚¤ãƒ³ã‚¸ã‚§ã‚¯ã‚·ãƒ§ãƒ³ãƒ‘ã‚¿ãƒ¼ãƒ³ã‚’ç´¹ä»‹ã—ã¾ã—ãŸã€‚ä»Šå›žã¯è„†å¼±ãªã‚³ãƒ¼ãƒ‰ã‚’è¦‹ã¤ã‘ã‚‹äº‹ã‚’è©¦ã¿ã‚ˆã†ã¨æ€ã„ã¾ã™ã€‚è„†å¼±ã¨ã¯è¨€ã£ã¦ã‚‚æ”»æ’ƒå¯èƒ½ã§ã‚ã‚‹ã“ã¨ã¯æ„å‘³ã—ã¾ã›ã‚“ã€‚ã‚³ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã¨ã—ã¦è„†å¼±ã§ã‚ã‚‹ã¨ã„ã†æ„å‘³ã§ã™ã€‚å®Ÿéš›ã«æ”»æ’ƒå¯èƒ½ã§ã‚ã‚‹ã‹ã©ã†ã‹ã¾ã§ã¯ç¢ºèªã—ã¦ã„ã¾ã›ã‚“ã€‚ ã‚µãƒ³ãƒ—ãƒ«ãƒ—ãƒã‚°ãƒ©ãƒ å®Ÿä¾‹ã¨ã„ã†ã“ã¨ã§Railsã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ãŒå¿…è¦ãªã®ã§æ¤œç´¢ã—ã¦ã€OpenProjectã¨å‘¼ã°ã‚Œã‚‹Railsã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚’åˆ©ç”¨ã—ã¦ã„ã¾ã™ã€‚OpenProjectã¯Office Projectã®ã‚ˆã†ãªãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆç®¡ç†ç”¨ã®ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã§ã™ã€‚GitHubã§ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ãŒå…¬é–‹ã•ã‚Œã¦ã„ã¾ã™ã€‚ä»Šå›žã¯ãã®ã‚³ãƒ¼ãƒ‰ã‚’åˆ©ç”¨ã—ã¦ã„ã¾ã™ã€‚ https://github.com/opf/openproject ã‚³ãƒ¼ãƒ‰ã®ç¢ºèª ä»Šå›žã¯Active
rryu 2014/05/29
ActiveRecordã¯includeã—ãŸãƒ†ãƒ¼ãƒ–ãƒ«ã«ã‚¨ã‚¤ãƒªã‚¢ã‚¹ãŒä»˜ã‘ã‚‰ã‚Œãªã„ã‹ã‚‰ã‚«ãƒ©ãƒ åãŒè¢«ã‚‹ã¨ãã¯ãƒ†ãƒ¼ãƒ–ãƒ«åã‚’æŒ‡å®šã›ã–ã‚‹ã‚’å¾—ãªã„ã®ãŒæ®‹å¿µãªã¨ã“ã‚ã€‚

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ä»Šæ—¥ @mad_p ã•ã‚“ã‹ã‚‰RTæ¥ã¦ãŸã“ã®ãƒ„ã‚¤ãƒ¼ãƒˆã«é–¢ã—ã¦ã€ã¡ã‚‡ã£ã¨èª¿ã¹ãŸã®ã§ã¾ã¨ã‚ã¨ãã¾ã™ã€‚ Security Issue in Ruby on Rails Could Expose Cookies http://t.co/JlsXVEn4rZ â€” Ruby on Rails News (@RubyonRailsNews) September 25, 2013 å‰ææ¡ä»¶ Railsã§ã¯ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã§sessionã‚’cookieã«ã®ã¿ä¿å˜ã—ã¦ã€DBãªã‚Šmemcacheãªã‚Šã®server-side storageã«ã¯ä½•ã‚‚ä¿å˜ã—ã¾ã›ã‚“ã€‚ ã“ã‚ŒãŒCookieStoreã¨ã‹å‘¼ã°ã‚Œã¦ã‚‹ã‚„ã¤ã§ã™ã€‚ ã“ã®å ´åˆã®session cookieã¯ã€Railsã®session object (Hash object) ã‚’Marshal.dumpã—ã¦ãã‚Œã«ç½²åã‚’ä»˜ã‘ãŸtokenã§ã™ã€‚ rails 4ã§ã¯ç½²åä»˜ã‘ã‚‹ä»£
rryu 2013/11/28
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to_sã¨to_strã®é•ã„ã®ãƒ¡ãƒ¢ - kitak blog
Object#to_sã¯ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®æ–‡å—åˆ—è¡¨ç¾. Kernel#printã‚„Kernel#putsã¯æ–‡å—åˆ—ä»¥å¤–ã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãŒå¼•æ•°ã«æ¸¡ã•ã‚ŒãŸå ´åˆã«ã“ã®ãƒ¡ã‚½ãƒƒãƒ‰ã‚’ä½¿ã£ã¦æ–‡å—åˆ—ã«å¤‰æ›ã™ã‚‹. to_strã¯æš—é»™ã®å¤‰æ›ç”¨. æš—é»™ã®å¤‰æ›...? ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãŒï½¢æ–‡å—åˆ—ãŒä½¿ã‚ã‚Œã‚‹ã™ã¹ã¦ã®å ´é¢ã§ä»£ç½®å¯èƒ½ã§ã‚ã‚‹ã‚ˆã†ãªã€æ–‡å—åˆ—ãã®ã‚‚ã®ã¨ã¿ãªã›ã‚‹ã‚ˆã†ãªã‚‚ã®ã¨ã„ã†åŽ³ã—ã„ã‚‚ã®ï½£ã¨ã‚ã‚‹. class Test def to_s 'to_s' end def to_str 'to_str' end end t = Test.new puts "#{t}" # "to_s" puts "123"+t # "123to_str" puts "to_strrrrr".include?(t) # å¼•æ•°ã¯"to_str"ã«å¤‰æ›ã•ã‚Œã‚‹ Matzã„ã‚ãï½¢Stringã¨é¡žä¼¼ã®ãƒ¡ã‚½ãƒƒãƒ‰é›†åˆã‚’æŒãŸãªã„ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã¯to_strã‚’å®šç¾©ã™
rryu 2013/11/13
ActiveSupport::SafeBufferã®to_sãŒselfã‚’è¿”ã—to_strãŒStringã‚’è¿”ã™ã®ã¯ä»•æ§˜ã£ã¦ã“ã¨ã§ã„ã„ã®ã ã‚ã†ã‹ã€‚

ruby

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Railsãƒ©ã‚¤ãƒ–ãƒ©ãƒªç´¹ä»‹: ãƒšãƒ¼ã‚¸ãƒ³ã‚°ã‚’è¡Œã†ã€Œkaminariã€ | TECHSCORE BLOG | TECHSCORE BLOG
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rryu 2013/11/06
Bootstrapç”¨ã®ãƒ†ãƒ¼ãƒžã‚‚ã‚ã‚‹ã®ã§ä¾¿åˆ©ã€‚

Rails
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GitHub - activerecord-hackery/ransack: Object-based searching.
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rryu 2013/11/06
ActiveRecoedã®ãƒ¢ãƒ‡ãƒ«ã®æ¤œç´¢æ©Ÿèƒ½ã‚’ä½œã‚‹ãŸã‚ã®ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã€‚

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ActiveSupport::Concern ã§ãƒãƒƒãƒ”ãƒ¼ãªãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ãƒ©ã‚¤ãƒ•ã‚’é€ã‚‹ | TECHSCORE BLOG | TECHSCORE BLOG
ã“ã‚“ã«ã¡ã¯ã€éˆ´æœ¨ã§ã™ã€‚ ä»¥å‰ã®ã‚¨ãƒ³ãƒˆãƒªã§ã€Œincludeã•ã‚ŒãŸæ™‚ã«ã‚¯ãƒ©ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã¨ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã‚’åŒæ™‚ã«è¿½åŠ ã™ã‚‹é »å‡ºãƒ‘ã‚¿ãƒ¼ãƒ³ã€ã‚’ã”ç´¹ä»‹ã—ã¾ã—ãŸã€‚ ä»Šå›žã¯ã€ãã‚Œã«é–¢ã™ã‚‹å®šå½¢å‡¦ç†ã‚’è‚©ä»£ã‚ã‚Šã—ã¦ãã‚Œã‚‹ ActiveSupport::Concern ã‚’ã”ç´¹ä»‹ã—ã¾ã™ã€‚ includeã•ã‚ŒãŸæ™‚ã«ã‚¯ãƒ©ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã¨ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã‚’åŒæ™‚ã«è¿½åŠ ã™ã‚‹ãƒ‘ã‚¿ãƒ¼ãƒ³ Before ä»¥å‰ã®ã‚¨ãƒ³ãƒˆãƒªï¼ˆincludeã•ã‚ŒãŸæ™‚ã«ã‚¯ãƒ©ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã¨ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã‚’åŒæ™‚ã«è¿½åŠ ã™ã‚‹é »å‡ºãƒ‘ã‚¿ãƒ¼ãƒ³ï¼‰ã§ã”ç´¹ä»‹ã—ã¦ã„ã¾ã™ãŒã€ãŠã•ã‚‰ã„ã—ã¾ã—ã‚‡ã†ã€‚ module M def self.included(base) base.extend(ClassMethods) end module ClassMethods def foo puts 'foo' end end def bar puts 'bar' end end
rryu 2013/11/01
ActiveRecordã‚’æ‹¡å¼µã™ã‚‹ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã‚’ä½œã‚‹ã¨ãã«ä¾¿åˆ©ãªãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã€‚

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