MS10-042: Vulnerability in Help and Support Center Could Allow Remote Code Execution (2229593)

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

include("compat.inc");

if (description)
{
  script_id(47710);
  script_version("1.25");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/08/05");

  script_cve_id("CVE-2010-1885");
  script_bugtraq_id(40725);
  script_xref(name:"CERT", value:"578319");
  script_xref(name:"EDB-ID", value:"13808");
  script_xref(name:"IAVA", value:"2010-A-0095-S");
  script_xref(name:"MSFT", value:"MS10-042");
  script_xref(name:"MSKB", value:"2229593");

  script_name(english:"MS10-042: Vulnerability in Help and Support Center Could Allow Remote Code Execution (2229593)");
  script_summary(english:"Checks version of Helpsvc.exe");

  script_set_attribute(attribute:"synopsis", value:
"It is possible to execute arbitrary code on the remote Windows host
through the Windows Help and Support Center feature.");
  script_set_attribute(attribute:"description", value:
"The Windows Help and Support Center does not properly validate HCP
URLs, which are associated normally with the Windows Help and Support
Center.

If an attacker can trick a user on the affected host into viewing a
specially crafted web page or clicking on a specially crafted link in
an email message, he can leverage this issue to execute arbitrary
code subject to the user's privileges.");
  # https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2010/ms10-042
  script_set_attribute(attribute:"see_also", value:"https://www.nessus.org/u?da3bd311");
  script_set_attribute(attribute:"solution", value:"Microsoft has released a set of patches for Windows XP and 2003.");
  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:H/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2010-1885");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Microsoft Help Center XSS and Command Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/06/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/07/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/07/13");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2010-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS10-042';
kbs = make_list("2229593");
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_range(xp:'2,3', win2003:'2') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

rootfile = hotfix_get_systemroot();
if (!rootfile) exit(1, "Failed to get the system root.");

share = hotfix_path2share(path:rootfile);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

kb = '2229593';
if (
  # Windows 2003 and XP x64
  hotfix_is_vulnerable(os:"5.2", sp:2,             file:"Helpsvc.exe", version:"5.2.3790.4726", dir:"\PCHEALTH\HELPCTR\Binaries", bulletin:bulletin, kb:kb) ||

  # Windows XP
  hotfix_is_vulnerable(os:"5.1", sp:3, arch:"x86", file:"Helpsvc.exe", version:"5.1.2600.5997", dir:"\PCHEALTH\HELPCTR\Binaries", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.1", sp:2, arch:"x86", file:"Helpsvc.exe", version:"5.1.2600.3720", dir:"\PCHEALTH\HELPCTR\Binaries", bulletin:bulletin, kb:kb)
)
{
  set_kb_item(name:"SMB/Missing/MS10-042", value:TRUE);
  hotfix_security_hole();

  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}