Vulnerabilities > CVE-2010-3966 - DLL Loading Arbitrary Code Execution vulnerability in Microsoft Windows BranchCache

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

include("compat.inc");

if (description)
{
  script_id(51167);
  script_version("1.17");
  script_cvs_date("Date: 2018/11/15 20:50:30");

  script_cve_id("CVE-2010-3966");
  script_bugtraq_id(45295);
  script_xref(name:"MSFT", value:"MS10-095");
  script_xref(name:"MSKB", value:"2385678");

  script_name(english:"MS10-095: Vulnerability in Microsoft Windows Could Allow Remote Code Execution (2385678)");
  script_summary(english:"Checks the version of Webio.dll");

  script_set_attribute(
    attribute:"synopsis",
    value:
"Arbitrary code can be executed on the remote host through Windows
BranchCache."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The remote Windows host contains a version of Windows BranchCache
that incorrectly restricts the path used for loading external
libraries.

If an attacker can trick a user on the affected system into opening a
specially crafted file (eg, .eml and .rss (Windows Live Mail) or
.wpost (Microsoft Live Writer)) that is located in the same network
directory as a specially crafted dynamic link library (DLL) file, he
may be able to leverage this issue to execute arbitrary code subject
to the user's privileges."
  );
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2010/ms10-095");
  script_set_attribute(
    attribute:"solution",
    value:
"Microsoft has released a set of patches for Windows 7 and 2008 R2."
  );
  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:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/12/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/12/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/12/15");

  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_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2010-2018 Tenable Network Security, Inc.");

  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("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 = 'MS10-095';
kbs = make_list("2385678");
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(win7:'0') <= 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 = "2385678";
if (
  # Windows 7 / Server 2008 R2
  hotfix_is_vulnerable(os:"6.1", file:"Webio.dll", version:"6.1.7600.20817", min_version:"6.1.7600.20000", dir:"\System32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", file:"Webio.dll", version:"6.1.7600.16688", min_version:"6.1.7600.16000", dir:"\System32", bulletin:bulletin, kb:kb)
)
{
  set_kb_item(name:"SMB/Missing/MS10-095", value:TRUE);
  hotfix_security_hole();

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

• name	Josh Turpin
  organization	Symantec Corporation

• name	Dragos Prisaca
  organization	Symantec Corporation

• comment	Microsoft Windows 7 (32-bit) is installed
  oval	oval:org.mitre.oval:def:6165

• comment	Microsoft Windows 7 x64 Edition is installed
  oval	oval:org.mitre.oval:def:5950

• comment	Microsoft Windows Server 2008 R2 x64 Edition is installed
  oval	oval:org.mitre.oval:def:6438

• comment	Microsoft Windows Server 2008 R2 Itanium-Based Edition is installed
  oval	oval:org.mitre.oval:def:5954