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fix ReDoS

This commit is contained in:
ooooooo_q 2022-10-08 11:23:45 +09:00 committed by Jordan Owens
parent 9031a4449b
commit 580b271775
1 changed files with 5 additions and 3 deletions
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8
rack-protection/lib/rack/protection/ip_spoofing.rb
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@ -13,9 +13,11 @@ module Rack
def accepts?(env)
return true unless env.include? 'HTTP_X_FORWARDED_FOR'
ips = env['HTTP_X_FORWARDED_FOR'].split(/\s*,\s*/)
return false if env.include? 'HTTP_CLIENT_IP' and not ips.include? env['HTTP_CLIENT_IP']
return false if env.include? 'HTTP_X_REAL_IP' and not ips.include? env['HTTP_X_REAL_IP']
ips = env['HTTP_X_FORWARDED_FOR'].split(',').map(&:strip)
return false if env.include?('HTTP_CLIENT_IP') && (!ips.include? env['HTTP_CLIENT_IP'])
return false if env.include?('HTTP_X_REAL_IP') && (!ips.include? env['HTTP_X_REAL_IP'])
true
end
end