Security Updates for Internet Explorer (October 2017)

2017-11-30T00:00:00
ID SMB_NT_MS17_OCT_INTERNET_EXPLORER.NASL
Type nessus
Reporter Tenable
Modified 2018-08-03T00:00:00

Description

The Internet Explorer installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :

  • A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. (CVE-2017-11813, CVE-2017-11822)

  • An information disclosure vulnerability exists when Internet Explorer improperly handles objects in memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the users system. (CVE-2017-11790)

  • A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. (CVE-2017-11793, CVE-2017-11810)

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the Microsoft Security Updates API. The text
# itself is copyright (C) Microsoft Corporation.
#
include("compat.inc");

if (description)
{
  script_id(104895);
  script_version("1.8");
  script_cvs_date("Date: 2018/08/03 11:35:09");

  script_cve_id(
    "CVE-2017-11790",
    "CVE-2017-11793",
    "CVE-2017-11810",
    "CVE-2017-11813",
    "CVE-2017-11822"
  );
  script_bugtraq_id(
    101077,
    101081,
    101083,
    101122,
    101141
  );
  script_xref(name:"MSKB", value:"4041681");
  script_xref(name:"MSKB", value:"4041690");
  script_xref(name:"MSKB", value:"4041693");
  script_xref(name:"MSKB", value:"4040685");
  script_xref(name:"MSFT", value:"MS17-4041681");
  script_xref(name:"MSFT", value:"MS17-4041690");
  script_xref(name:"MSFT", value:"MS17-4041693");
  script_xref(name:"MSFT", value:"MS17-4040685");

  script_name(english:"Security Updates for Internet Explorer (October 2017)");
  script_summary(english:"Checks for Microsoft security updates.");

  script_set_attribute(attribute:"synopsis", value:
"The Internet Explorer installation on the remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Internet Explorer installation on the remote host is
missing security updates. It is, therefore, affected by
multiple vulnerabilities :

  - A remote code execution vulnerability exists when
    Internet Explorer improperly accesses objects in memory.
    The vulnerability could corrupt memory in such a way
    that an attacker could execute arbitrary code in the
    context of the current user. An attacker who
    successfully exploited the vulnerability could gain the
    same user rights as the current user.  (CVE-2017-11813,
    CVE-2017-11822)

  - An information disclosure vulnerability exists when
    Internet Explorer improperly handles objects in memory.
    An attacker who successfully exploited the vulnerability
    could obtain information to further compromise the users
    system.  (CVE-2017-11790)

  - A remote code execution vulnerability exists in the way
    that the scripting engine handles objects in memory in
    Internet Explorer. The vulnerability could corrupt
    memory in such a way that an attacker could execute
    arbitrary code in the context of the current user. An
    attacker who successfully exploited the vulnerability
    could gain the same user rights as the current user.
    (CVE-2017-11793, CVE-2017-11810)");
  # https://support.microsoft.com/en-us/help/4041681/windows-7-update-kb4041681
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1d1a2595");
  # https://support.microsoft.com/en-us/help/4041690/windows-server-2012-update-kb4041690
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e258896f");
  # https://support.microsoft.com/en-us/help/4041693/windows-81-update-kb4041693
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1c3325f2");
  # https://support.microsoft.com/en-us/help/4040685/cumulative-security-update-for-internet-explorer
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?86f61c93");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released security updates for the affected versions of Internet Explorer.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/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:"exploited_by_malware", value:"true");


  script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/11/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/30");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");
  script_copyright(english:"This script is Copyright (C) 2017-2018 Tenable Network Security, Inc.");
  script_dependencies("smb_check_rollup.nasl", "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("audit.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_hotfixes.inc");
include("smb_func.inc");
include("misc_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS17-10';
kbs = make_list(
  '4041681',
  '4041690',
  '4041693',
  '4040685'
);

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");
os = get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);

if (hotfix_check_sp_range(vista:'2', win7:'1', win8:'0',  win81:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
if ("Windows 8" >< productname && "8.1" >!< productname)
 audit(AUDIT_OS_SP_NOT_VULN);
if ("Vista" >< productname) audit(AUDIT_OS_SP_NOT_VULN);

if (hotfix_check_server_core() == 1) audit(AUDIT_WIN_SERVER_CORE);

share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

if (
  # Windows 8.1 / Windows Server 2012 R2
  # Internet Explorer 11
  hotfix_is_vulnerable(os:"6.3", sp:0, file:"mshtml.dll", version:"11.0.9600.18817", min_version:"11.0.9600.16000", dir:"\system32", bulletin:bulletin, kb:"4040685") ||

  # Windows Server 2012
  # Internet Explorer 10
  hotfix_is_vulnerable(os:"6.2", sp:0, file:"mshtml.dll", version:"10.0.9200.22277", min_version:"10.0.9200.16000", dir:"\system32", bulletin:bulletin, kb:"4040685") ||

  # Windows 7 / Server 2008 R2
  # Internet Explorer 11
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"mshtml.dll", version:"11.0.9600.18817", min_version:"11.0.9600.16000", dir:"\system32", bulletin:bulletin, kb:"4040685") ||

  # Windows Server 2008
  # Internet Explorer 9
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"mshtml.dll", version:"9.0.8112.21061", min_version:"9.0.8112.16000", dir:"\system32", bulletin:bulletin, kb:"4040685")
)
{
  report =  '\nNote: The fix for this issue is available in either of the following updates:\n';
  report += '  - KB4040685 : Cumulative Security Update for Internet Explorer\n';
  if(os == "6.3")
  {
    report += '  - KB4041693 : Windows 8.1 / Server 2012 R2 Monthly Rollup\n';
    hotfix_add_report(bulletin:'MS17-10', kb:'4041693', report);
  }
  else if(os == "6.2")
  {
    report += '  - KB4041690 : Windows Server 2012 Monthly Rollup\n';
    hotfix_add_report(bulletin:'MS17-10', kb:'4041690', report);
  }
  else if(os == "6.1")
  {
    report += '  - KB4041681 : Windows 7 / Server 2008 R2 Monthly Rollup\n';
    hotfix_add_report(bulletin:'MS17-10', kb:'4041681', report);
  }
  set_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
}