| code | #
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(82769);
script_version("1.14");
script_cvs_date("Date: 2018/07/30 15:31:33");
script_cve_id(
"CVE-2015-1641",
"CVE-2015-1649",
"CVE-2015-1650",
"CVE-2015-1651"
);
script_bugtraq_id(73991, 74007, 74011, 74012);
script_xref(name:"MSFT", value:"MS15-033");
script_xref(name:"MSKB", value:"2965284");
script_xref(name:"MSKB", value:"2965236");
script_xref(name:"MSKB", value:"2553428");
script_xref(name:"MSKB", value:"2965289");
script_xref(name:"MSKB", value:"2965210");
script_xref(name:"MSKB", value:"2553164");
script_xref(name:"MSKB", value:"2965238");
script_xref(name:"MSKB", value:"2965224");
script_xref(name:"MSKB", value:"2965215");
script_xref(name:"MSKB", value:"2965306");
script_xref(name:"IAVA", value:"2015-A-0090");
script_name(english:"MS15-033: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (3048019)");
script_summary(english:"Checks the Office, SharePoint, and OWA version.");
script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by multiple remote code execution
vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The remote Windows host has a version of Microsoft Office, Office
Compatibility Pack, Microsoft Word, Microsoft Word Viewer, SharePoint
Server, or Microsoft Office Web Apps installed that is affected by
multiple remote code execution vulnerabilities :
- A remote code execution vulnerability exists due to
improper handling rich text format files in memory. A
remote attacker can exploit this vulnerability by
convincing a user to open a specially crafted file using
the affected software, resulting in execution of
arbitrary code in the context of the current user.
(CVE-2015-1641)
- Multiple use-after-free errors exist due to improper
parsing specially crafted Office files. A remote
attacker can exploit these errors by convincing a user
to open a specially crafted file using the affected
software, resulting in execution of arbitrary code in
the context of the current user. (CVE-2015-1649,
CVE-2015-1650, CVE-2015-1651)");
script_set_attribute(attribute:"see_also", value:"https://technet.microsoft.com/library/security/ms15-033");
script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Office 2010, Word 2007,
2010, 2013, Office Compatibility Pack, Microsoft Word Viewer,
SharePoint Server, and Office Web Apps.");
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:"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:"2015/04/14");
script_set_attribute(attribute:"patch_publication_date", value:"2015/04/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/04/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:word_viewer");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_compatibility_pack");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:sharepoint_server");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office_web_apps");
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) 2015-2018 Tenable Network Security, Inc.");
script_dependencies("office_installed.nasl", "microsoft_sharepoint_installed.nbin", "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("smb_reg_query.inc");
include("misc_func.inc");
global_var bulletin, vuln;
function get_ver()
{
local_var fh, path, rc, share, ver;
path = _FCT_ANON_ARGS[0];
share = ereg_replace(pattern:"^([A-Za-z]):.*", replace:"\1$", string:path);
rc = NetUseAdd(share:share);
if (rc != 1)
{
NetUseDel();
audit(AUDIT_SHARE_FAIL, share);
}
ver = NULL;
path = ereg_replace(string:path, pattern:"^[A-Za-z]:(.*)", replace:'\\1\\');
fh = CreateFile(
file : path,
desired_access : GENERIC_READ,
file_attributes : FILE_ATTRIBUTE_NORMAL,
share_mode : FILE_SHARE_READ,
create_disposition : OPEN_EXISTING
);
if (!isnull(fh))
{
ver = GetFileVersion(handle:fh);
ver = join(ver, sep:".");
CloseFile(handle:fh);
}
NetUseDel(close:FALSE);
return ver;
}
function check_vuln(fix, kb, name, path, ver)
{
local_var info;
if (isnull(ver))
ver = get_ver(path);
if (isnull(ver) || ver_compare(ver:ver, fix:fix, strict:FALSE) >= 0)
return 0;
info =
'\n Product : ' + name +
'\n Path : ' + path +
'\n Installed version : ' + ver +
'\n Fixed version : ' + fix +
'\n';
hotfix_add_report(info, bulletin:bulletin, kb:kb);
vuln = TRUE;
}
get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");
# Get path information for Windows.
windir = hotfix_get_systemroot();
if (isnull(windir)) exit(1, "Failed to determine the location of %windir%.");
bulletin = 'MS15-033';
kbs = make_list(
2965284, # Word 2007
2965236, # Office 2010
2553428, # Word 2010
2965289, # Word Viewer
2965210, # Office Compat Pack
2553164, # SharePoint 2010 Word Automation Services
2965238, # Office Web Apps 2010
2965224, # Word 2013
2965215, # SharePoint 2013 Word Automation Services
2965306 # Office Web Apps 2013
);
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", exit_code:1);
# Connect to the registry.
registry_init();
hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);
# Get path information for SharePoint Server 2010.
sps_2010_path = get_registry_value(
handle : hklm,
item : "SOFTWARE\Microsoft\Office Server\14.0\InstallPath"
);
# Get the path information for SharePoint Server 2013
sps_2013_path = get_registry_value(
handle : hklm,
item : "SOFTWARE\Microsoft\Office Server\15.0\InstallPath"
);
owa_2013_path = get_registry_value(
handle : hklm,
item : "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Office15.WacServer\InstallLocation"
);
# Close connection to registry.
RegCloseKey(handle:hklm);
close_registry(close:FALSE);
# Get path information for Office Web Apps.
owa_2010_path = sps_2010_path;
######################################################################
# Office Web Apps 2010 SP1 / SP2
######################################################################
if (owa_2010_path)
{
check_vuln(
name : "Office Web Apps 2010",
kb : "2965238",
path : owa_2010_path + "WebServices\ConversionService\Bin\Converter\sword.dll",
fix : "14.0.7147.5000"
);
}
######################################################################
# Office Web Apps 2013 SP1 / SP2
######################################################################
if (owa_2013_path)
{
check_vuln(
name : "Office Web Apps 2013",
kb : "2965306",
path : owa_2013_path + "\WordConversionService\Bin\Converter\sword.dll",
fix : "15.0.4711.1001"
);
}
######################################################################
# SharePoint Server 2010 SP2
######################################################################
if (sps_2010_path)
{
check_vuln(
name : "Office SharePoint Server 2010",
kb : "2553164",
path : sps_2010_path + "WebServices\WordServer\Core\sword.dll",
fix : "14.0.7147.5000"
);
}
######################################################################
# SharePoint Server 2013 SP2
######################################################################
if (sps_2013_path)
{
check_vuln(
name : "SharePoint Server 2013 Word Automation Services",
kb : "2965215",
path : sps_2013_path + "WebServices\ConversionServices\sword.dll",
fix : "15.0.4711.1000"
);
}
# Word
kb = "";
installs = get_kb_list("SMB/Office/Word/*/ProductPath");
if (!isnull(installs))
{
foreach install (keys(installs))
{
version = install - 'SMB/Office/Word/' - '/ProductPath';
path = installs[install];
info = "";
# Word 2013
if (version =~ "^15\." && ver_compare(ver:version, fix:'15.0.4711.1001') < 0)
{
office_sp = get_kb_item("SMB/Office/2013/SP");
if (!isnull(office_sp) && (office_sp <= 1))
{
info =
'\n Product : Word 2013' +
'\n File : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 15.0.4711.1001' + '\n';
kb = "2965224";
}
}
# Word 2010 SP2
if (version =~ "^14\." && ver_compare(ver:version, fix:'14.0.7147.5000') < 0)
{
office_sp = get_kb_item("SMB/Office/2010/SP");
if (!isnull(office_sp) && (office_sp == 2))
{
info =
'\n Product : Word 2010' +
'\n File : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 14.0.7147.5000' + '\n';
kb = "2553428";
}
}
# Word 2007 SP3
if (version =~ "^12\." && ver_compare(ver:version, fix:'12.0.6720.5000') < 0)
{
office_sp = get_kb_item("SMB/Office/2007/SP");
if (!isnull(office_sp) && office_sp == 3)
{
info =
'\n Product : Word 2007 SP3' +
'\n File : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 12.0.6720.5000' + '\n';
kb = "2965284";
}
}
if (info)
{
hotfix_add_report(info, bulletin:bulletin, kb:kb);
vuln = TRUE;
}
}
}
# Word Viewer
installs = get_kb_list("SMB/Office/WordViewer/*/ProductPath");
if (!isnull(installs))
{
foreach install (keys(installs))
{
info = "";
version = install - 'SMB/Office/WordViewer/' - '/ProductPath';
path = installs[install];
if (isnull(path)) path = "n/a";
if (ver_compare(ver:version, fix:'11.0.8417.0') < 0)
{
info =
'\n Product : Word Viewer' +
'\n File : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 11.0.8417.0' + '\n';
kb = "2965289";
}
if (info)
{
hotfix_add_report(info, bulletin:bulletin, kb:kb);
vuln = TRUE;
break;
}
}
}
# Ensure Office is installed
office_vers = hotfix_check_office_version();
if (!isnull(office_vers))
{
# Ensure we can get common files directory
commonfiles = hotfix_get_officecommonfilesdir(officever:"14.0");
if (commonfiles)
{
# Ensure share is accessible
share = ereg_replace(pattern:"^([A-Za-z]):.*", replace:"\1$", string:commonfiles);
if (is_accessible_share(share:share))
{
# Office 2010
if (office_vers["14.0"])
{
office_sp = get_kb_item("SMB/Office/2010/SP");
if (!isnull(office_sp) && office_sp == 2)
{
path = get_kb_item("SMB/Office/Word/14.0/Path");
if (!path) path = get_kb_item("SMB/Office/Excel/14.0/Path");
if (!path) path = get_kb_item("SMB/Office/PowerPoint/14.0/Path");
if (path)
{
old_report = hotfix_get_report();
check_file = "Wwlib.dll";
if (hotfix_check_fversion(path:path, file:check_file, version:"14.0.7147.5000", min_version:"14.0.0.0") == HCF_OLDER)
{
file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
kb_name = "SMB/FileVersions/"+tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
kb_name = str_replace(find:"//", replace:"/", string:kb_name);
version = get_kb_item(kb_name);
info =
'\n Product : Microsoft Office 2010' +
'\n File : ' + path + '\\' + check_file +
'\n Installed version : ' + version +
'\n Fixed version : 14.0.7147.5000' + '\n';
hcf_report = '';
hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2965236");
vuln = TRUE;
}
}
}
}
# Office 2007 SP3
if (office_vers["12.0"])
{
office_sp = get_kb_item("SMB/Office/2007/SP");
if (!isnull(office_sp) && office_sp == 3)
{
path = commonfiles + "\Microsoft Shared\Office12";
old_report = hotfix_get_report();
check_file = "Winword.exe";
if (hotfix_check_fversion(path:path, file:check_file, version:"12.0.6720.5000", min_version:"12.0.0.0") == HCF_OLDER)
{
file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
kb_name = "SMB/FileVersions/" + tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
version = get_kb_item(kb_name);
info =
'\n Product : Microsoft Office 2007 SP3' +
'\n File : ' + path + '\\' + check_file +
'\n Installed version : ' + version +
'\n Fixed version : 12.0.6720.5000\n';
hcf_report = '';
hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2965284");
vuln = TRUE;
}
}
}
}
}
}
version = '';
installs = get_kb_list("SMB/Office/WordCnv/*/ProductPath");
if (!isnull(installs))
{
foreach install (keys(installs))
{
version = install - 'SMB/Office/WordCnv/' - '/ProductPath';
path = installs[install];
if (!isnull(path))
{
share = hotfix_path2share(path:path);
if (!is_accessible_share(share:share))
audit(AUDIT_SHARE_FAIL, share);
path = path - '\\Wordconv.exe';
old_report = hotfix_get_report();
check_file = "wordcnv.dll";
if (hotfix_check_fversion(path:path, file:check_file, version:"12.0.6720.5000", min_version:"12.0.0.0") == HCF_OLDER)
{
file = ereg_replace(pattern:"^[A-Za-z]:(.*)", string:path, replace:"\1\" + check_file);
kb_name = "SMB/FileVersions/"+tolower(share-'$')+tolower(str_replace(string:file, find:"\", replace:"/"));
kb_name = ereg_replace(pattern:"//"+check_file, replace:"/"+check_file, string:kb_name);
version = get_kb_item(kb_name);
info =
'\n Product : Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats' +
'\n File : ' + path + '\\' + check_file +
'\n Installed version : ' + version +
'\n Fixed version : 12.0.6720.5000' + '\n';
hcf_report = '';
hotfix_add_report(old_report + info, bulletin:bulletin, kb:"2965210");
vuln = TRUE;
}
}
}
}
if (vuln)
{
set_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
hotfix_security_hole();
hotfix_check_fversion_end();
exit(0);
}
else
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, 'affected');
}
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