MS11-085: Vulnerability in Windows Mail and Windows Meeting Space Could Allow Remote Code Execution (2620704)

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

include("compat.inc");

if (description)
{
  script_id(56738);
  script_version("1.22");
  script_cvs_date("Date: 2018/11/15 20:50:31");

  script_cve_id("CVE-2011-2016");
  script_bugtraq_id(50507);
  script_xref(name:"MSFT", value:"MS11-085");
  script_xref(name:"MSKB", value:"2620704");

  script_name(english:"MS11-085: Vulnerability in Windows Mail and Windows Meeting Space Could Allow Remote Code Execution (2620704)");
  script_summary(english:"Checks the file version of wab32.dll.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by a remote code execution
vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing an security update. It is,
therefore, affected by a flaw in Windows Mail and Windows Meeting
Space related to the search path that is used when loading dynamic
link library (DLL) files. This path may include directories that are
not trusted or under user control. An unauthenticated, remote attacker
can exploit this, by inserting a crafted Trojan horse DLL file into
the search path, to execute arbitrary code with privileges of the
user.");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-085");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows Vista, 2008, 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:F/RL:OF/RC:C");
  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:"vuln_publication_date", value:"2011/11/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/11/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/11/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:windows_mail");
  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) 2011-2018 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_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("misc_func.inc");


get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = 'MS11-085';
kb = "2620704";

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_range(vista:'2', win7:'0,1') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
if (hotfix_check_server_core() == 1) audit(AUDIT_WIN_SERVER_CORE);

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

share = hotfix_path2share(path:rootfile);
path  = ereg_replace(pattern:"^[A-Za-z](.*)", replace:"\1", string:rootfile);

login  = kb_smb_login();
pass   = kb_smb_password();
domain = kb_smb_domain();
port   = kb_smb_transport();

if(! smb_session_init()) audit(AUDIT_FN_FAIL, "smb_session_init");

hcf_init = TRUE;

rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
if (rc != 1)
{
  NetUseDel();
  audit(AUDIT_SHARE_FAIL, share);
}

winsxs = ereg_replace(pattern:"^[A-Za-z]:(.*)", replace:"\1\WinSxS", string:rootfile);
files = list_dir(basedir:winsxs, level:0, dir_pat:"microsoft-windows-wab-core", file_pat:"^wab32\.dll$");

vuln = 0;
# Windows Vista / Windows Server 2008
vuln += hotfix_check_winsxs(os:'6.0', sp:2, files:files, versions:make_list('6.0.6002.18521', '6.0.6002.22722'), max_versions:make_list('6.0.6002.20000', '6.0.6002.99999'), bulletin:bulletin, kb:kb);

# Windows 7 / Windows Server 2008 R2
vuln += hotfix_check_winsxs(os:'6.1', sp:0, files:files, versions:make_list('6.1.7600.16891', '6.1.7600.21062'), max_versions:make_list('6.1.7600.20000', '6.1.7600.99999'), bulletin:bulletin, kb:kb);
vuln += hotfix_check_winsxs(os:'6.1', sp:1, files:files, versions:make_list('6.1.7601.17699', '6.1.7601.21830'), max_versions:make_list('6.1.7601.20000', '6.1.7601.99999'), bulletin:bulletin, kb:kb);

if (vuln)
{
  set_kb_item(name:"SMB/Missing/"+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
  exit(0);
}

hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, 'affected');