Microsoft IIS Phone Book Service /pbserver/pbserver.dll Remote Overflow - Nessus

Critical   Plugin ID: 10564

This page contains detailed information about the Microsoft IIS Phone Book Service /pbserver/pbserver.dll Remote Overflow 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: 10564
Name: Microsoft IIS Phone Book Service /pbserver/pbserver.dll Remote Overflow
Filename: phonebook.nasl
Vulnerability Published: 2000-12-04
This Plugin Published: 2000-12-06
Last Modification Time: 2021-01-19
Plugin Version: 1.43
Plugin Type: remote
Plugin Family: CGI abuses
Dependencies: find_service1.nasl, http_version.nasl, no404.nasl
Required KB Items [?]: Settings/ParanoidReport

Vulnerability Information

Severity: Critical
Vulnerability Published: 2000-12-04
Patch Published: N/A
CVE [?]: CVE-2000-1089
CPE [?]: N/A

Synopsis

The remote host contains software that is vulnerable to a buffer overflow.

Description

The CGI /pbserver/pbserver.dll is subject to a buffer overflow attack that may allow an attacker to execute arbitrary commands on this host.

Solution

Microsoft has released patches for Windows NT and 2000.

Public Exploits

Target Network Port(s): 80
Target Asset(s): Services/www
Exploit Available: True (Metasploit Framework, Exploit-DB)
Exploit Ease: No exploit is required

Here's the list of publicly known exploits and PoCs for verifying the Microsoft IIS Phone Book Service /pbserver/pbserver.dll Remote Overflow vulnerability:

  1. Metasploit: exploit/windows/isapi/ms00_094_pbserver
    [MS00-094 Microsoft IIS Phone Book Service Overflow]
  2. Exploit-DB: exploits/windows/remote/16357.rb
    [EDB-16357: Microsoft IIS - Phone Book Service Overflow (MS00-094) (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:C/I:C/A:C/E:F/RL:OF/RC:C
CVSS Base Score:10.0 (High)
Impact Subscore:10.0
Exploitability Subscore:10.0
CVSS Temporal Score:8.3 (High)
CVSS Environmental Score:NA (None)
Modified Impact Subscore:NA
Overall CVSS Score:8.3 (High)

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Plugin Source

This is the phonebook.nasl nessus plugin source code. This script is Copyright (C) 2000-2021 Tenable Network Security, Inc. 

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

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

if (description)
{
  script_id(10564);
  script_version("1.43");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2000-1089");
  script_bugtraq_id(2048);
  script_xref(name:"MSFT", value:"MS00-094");
  script_xref(name:"MSKB", value:"276575");

  script_name(english:"Microsoft IIS Phone Book Service /pbserver/pbserver.dll Remote Overflow");
  script_summary(english:"Determines whether phonebook server is installed");

  script_set_attribute(attribute:"synopsis", value:
"The remote host contains software that is vulnerable to a buffer
overflow.");
  script_set_attribute(attribute:"description", value:
"The CGI /pbserver/pbserver.dll is subject to a buffer overflow attack
that may allow an attacker to execute arbitrary commands on this host.");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2000/ms00-094");
  script_set_attribute(attribute:"solution", value:"Microsoft has released patches for Windows NT and 2000.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"metasploit_name", value:'MS00-094 Microsoft IIS Phone Book Service Overflow');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2000/12/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2000/12/06");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_end_attributes();

  script_category(ACT_DENIAL);
  script_copyright(english:"This script is Copyright (C) 2000-2021 Tenable Network Security, Inc.");
  script_family(english:"CGI abuses");

  script_dependencie("http_version.nasl", "find_service1.nasl", "no404.nasl");
  script_require_keys("Settings/ParanoidReport");
  script_require_ports("Services/www", 80);

  exit(0);
}

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

if (report_paranoia < 2) audit(AUDIT_PARANOID);

port = get_http_port(default:80);


w = http_send_recv3(method:"GET",item:"/pbserver/pbserver.dll", port:port);
r = strcat(r[0], r[1], '\r\n', r[2]);
if("Bad Request" >< r)
  {
    r = http_send_recv3(method: "GET", port: port,
 item:string("/pbserver/pbserver.dll?OSArch=0&OSType=2&LCID=", crap(200), "&PBVer=0&PB=", crap(200)));
    r = http_send_recv3(method:"GET", item:"/pbserver/pbserver.dll", port:port);
    if (isnull(r)) security_hole(port);
  }

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

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

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How to Run

Here is how to run the Microsoft IIS Phone Book Service /pbserver/pbserver.dll Remote Overflow 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 CGI abuses plugin family.
  6. On the right side table select Microsoft IIS Phone Book Service /pbserver/pbserver.dll Remote Overflow plugin ID 10564.
  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 phonebook.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

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

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

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

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References

BID | SecurityFocus Bugtraq ID: MSKB | Microsoft Knowledge Base: MSFT | Microsoft Security Bulletin:
  • MS00-094
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Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file phonebook.nasl version 1.43. For more plugins, visit the Nessus Plugin Library.

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