MS00-067: Telnet Client NTLM Authentication Vulnerability (272743)

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

include("compat.inc");

if (description)
{
 script_id(10519);
 script_version("1.48");
 script_cvs_date("Date: 2018/11/15 20:50:29");

 script_cve_id("CVE-2000-0834");
 script_bugtraq_id(1683);
 script_xref(name:"MSFT", value:"MS00-067");
 script_xref(name:"MSKB", value:"272743");

 script_name(english:"MS00-067: Telnet Client NTLM Authentication Vulnerability (272743)");
 script_summary(english:"Determines whether the hotfix Q272743 is installed");

 script_set_attribute(attribute:"synopsis", value:"It may be possible to steal user credentials.");
 script_set_attribute(attribute:"description", value:
"The hotfix for the 'Telnet Client NTLM Authentication' problem has
not been applied.

This vulnerability may, under certain circumstances, allow a malicious
user to obtain cryptographically protected login credentials from
another user.");
 script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2000/ms00-067");
 script_set_attribute(attribute:"solution", value:"Microsoft has released a patch for Windows 2000.");
 script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
 script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
 script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
 script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"true");

 script_set_attribute(attribute:"vuln_publication_date", value:"2000/09/14");
 script_set_attribute(attribute:"patch_publication_date", value:"2000/09/14");
 script_set_attribute(attribute:"plugin_publication_date", value:"2000/09/25");

 script_set_attribute(attribute:"plugin_type", value:"local");
 script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
 script_end_attributes();

 script_category(ACT_GATHER_INFO);

 script_copyright(english:"This script is Copyright (C) 2000-2018 Tenable Network Security, Inc.");
 script_family(english:"Windows : Microsoft Bulletins");

 script_dependencies("smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
 script_require_keys("SMB/MS_Bulletin_Checks/Possible");
 script_require_ports(139, 445, "Host/patch_management_checks");

 exit(0);
}

include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("misc_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS00-067';
kb = "272743";

kbs = make_list(kb);
if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

get_kb_item_or_exit('SMB/Registry/Enumerated');
get_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);

if (hotfix_check_sp(win2k:2) <= 0) exit(0, "The host is not affected based on its version / service pack.");


if (hotfix_missing(name:"Q272743") > 0)
{
  if (
    defined_func("report_xml_tag") &&
    !isnull(bulletin) &&
    !isnull(kb)
  ) report_xml_tag(tag:bulletin, value:kb);

  hotfix_security_hole();
  set_kb_item(name:"SMB/Missing/"+bulletin, value:TRUE);
  exit(0);
}
else exit(0, "The host is not affected.");