WinProxy < 6.1a Multiple Vulnerabilities (credentialed check) - Nessus

High   Plugin ID: 20393

This page contains detailed information about the WinProxy < 6.1a Multiple Vulnerabilities (credentialed check) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

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Plugin Overview

ID: 20393
Name: WinProxy < 6.1a Multiple Vulnerabilities (credentialed check)
Filename: winproxy_61a.nasl
Vulnerability Published: 2006-01-05
This Plugin Published: 2006-01-10
Last Modification Time: 2018-08-06
Plugin Version: 1.14
Plugin Type: local
Plugin Family: Firewalls
Dependencies: smb_hotfixes.nasl
Required KB Items [?]: SMB/Registry/Enumerated

Vulnerability Information

Severity: High
Vulnerability Published: 2006-01-05
Patch Published: 2006-01-05
CVE [?]: CVE-2005-3187, CVE-2005-3654, CVE-2005-4085
CPE [?]: N/A

Synopsis

The remote proxy is affected by multiple vulnerabilities.

Description

The remote host is running WinProxy, a proxy server for Windows.

According to the Windows registry, the installed version of WinProxy suffers from denial of service and buffer overflow vulnerabilities in its telnet and web proxy servers. An attacker may be able to exploit these issues to crash the proxy or even execute arbitrary code on the affected host.

Solution

Upgrade to WinProxy version 6.1a or later.

Public Exploits

Target Network Port(s): 139, 445
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the WinProxy < 6.1a Multiple Vulnerabilities (credentialed check) vulnerability:

  1. Metasploit: exploit/windows/proxy/bluecoat_winproxy_host
    [Blue Coat WinProxy Host Header Overflow]
  2. Exploit-DB: exploits/windows/remote/16691.rb
    [EDB-16691: Blue Coat WinProxy - Host Header Overflow (Metasploit)]

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 V2 Vector [?]: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C
CVSS Base Score:7.5 (High)
Impact Subscore:6.4
Exploitability Subscore:10.0
CVSS Temporal Score:6.2 (Medium)
CVSS Environmental Score:NA (None)
Modified Impact Subscore:NA
Overall CVSS Score:6.2 (Medium)

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Plugin Source

This is the winproxy_61a.nasl nessus plugin source code. This script is Copyright (C) 2006-2018 Tenable Network Security, Inc. 

#
# (C) Tenable Network Security, Inc.
#



include("compat.inc");

if (description) {
  script_id(20393);
  script_version("1.14");

  script_cve_id("CVE-2005-3187", "CVE-2005-3654", "CVE-2005-4085");
  script_bugtraq_id(16147, 16148, 16149);

  script_name(english:"WinProxy < 6.1a Multiple Vulnerabilities (credentialed check)");
  script_summary(english:"Checks for multiple vulnerabilities in WinProxy < 6.1a");

 script_set_attribute(attribute:"synopsis", value:
"The remote proxy is affected by multiple vulnerabilities." );
 script_set_attribute(attribute:"description", value:
"The remote host is running WinProxy, a proxy server for Windows. 

According to the Windows registry, the installed version of WinProxy
suffers from denial of service and buffer overflow vulnerabilities in
its telnet and web proxy servers.  An attacker may be able to exploit
these issues to crash the proxy or even execute arbitrary code on the
affected host." );
 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?40f07cd6" );
 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3a6c81a5" );
 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?79b3006b" );
 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8c88612f" );
 script_set_attribute(attribute:"solution", value:
"Upgrade to WinProxy version 6.1a or later." );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
 script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"true");
 script_set_attribute(attribute:"metasploit_name", value:'Blue Coat WinProxy Host Header Overflow');
 script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
 script_set_attribute(attribute:"plugin_publication_date", value: "2006/01/10");
 script_set_attribute(attribute:"patch_publication_date", value: "2006/01/05");
 script_set_attribute(attribute:"vuln_publication_date", value: "2006/01/05");
 script_cvs_date("Date: 2018/08/06 14:03:14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_end_attributes();

 
  script_category(ACT_GATHER_INFO);
  script_family(english:"Firewalls");
  script_copyright(english:"This script is Copyright (C) 2006-2018 Tenable Network Security, Inc.");
  script_dependencies("smb_hotfixes.nasl");
  script_require_keys("SMB/Registry/Enumerated");
  script_require_ports(139, 445);

  exit(0);
}


if (!get_kb_item("SMB/Registry/Enumerated")) exit(0);


# Look in the registry for evidence of WinProxy.
name = get_kb_item("SMB/Registry/HKLM/SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall/WinProxy 6/DisplayName");
if (name && name =~ "^WinProxy \(Version ([0-5]\.|6\.0)") {
  security_hole(0);
  exit(0);
}

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

  • Linux / Unix:
    /opt/nessus/lib/nessus/plugins/winproxy_61a.nasl
  • Windows:
    C:\ProgramData\Tenable\Nessus\nessus\plugins\winproxy_61a.nasl
  • Mac OS X:
    /Library/Nessus/run/lib/nessus/plugins/winproxy_61a.nasl

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How to Run

Here is how to run the WinProxy < 6.1a Multiple Vulnerabilities (credentialed check) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

  1. Click to start a New Scan.
  2. Select Advanced Scan.
  3. Navigate to the Plugins tab.
  4. On the top right corner click to Disable All plugins.
  5. On the left side table select Firewalls plugin family.
  6. On the right side table select WinProxy < 6.1a Multiple Vulnerabilities (credentialed check) plugin ID 20393.
  7. Specify the target on the Settings tab and click to Save the scan.
  8. 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 winproxy_61a.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a winproxy_61a.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - winproxy_61a.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 winproxy_61a.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID: See also: Similar and related Nessus plugins:
  • 20391 - WinProxy < 6.1a HTTP Proxy Multiple Vulnerabilities
  • 24277 - WinProxy < 6.1r1c HTTP CONNECT Request Remote Overflow

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file winproxy_61a.nasl version 1.14. For more plugins, visit the Nessus Plugin Library.

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