| code | #
# (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(128767);
script_version("1.7");
script_cvs_date("Date: 2020/02/12");
script_cve_id(
"CVE-2019-1257",
"CVE-2019-1259",
"CVE-2019-1260",
"CVE-2019-1261",
"CVE-2019-1262",
"CVE-2019-1295",
"CVE-2019-1296"
);
script_bugtraq_id(108619, 109364);
script_xref(name:"MSKB", value:"4475605");
script_xref(name:"MSKB", value:"4475596");
script_xref(name:"MSKB", value:"4484098");
script_xref(name:"MSKB", value:"4484099");
script_xref(name:"MSKB", value:"4475590");
script_xref(name:"MSKB", value:"4475594");
script_xref(name:"MSKB", value:"4464557");
script_xref(name:"MSFT", value:"MS19-4475605");
script_xref(name:"MSFT", value:"MS19-4475596");
script_xref(name:"MSFT", value:"MS19-4484098");
script_xref(name:"MSFT", value:"MS19-4484099");
script_xref(name:"MSFT", value:"MS19-4475590");
script_xref(name:"MSFT", value:"MS19-4475594");
script_xref(name:"MSFT", value:"MS19-4464557");
script_name(english:"Security Updates for Microsoft SharePoint Server (September 2019)");
script_summary(english:"Checks for Microsoft security updates.");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft SharePoint Server installation on the remote host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Microsoft SharePoint Server installation on the remote
host is missing security updates. It is, therefore, affected
by multiple vulnerabilities :
- An elevation of privilege vulnerability exists in
Microsoft SharePoint. An attacker who successfully
exploited this vulnerability could attempt to
impersonate another user of the SharePoint server.
(CVE-2019-1260)
- A cross-site-scripting (XSS) vulnerability exists when
Microsoft SharePoint Server does not properly sanitize a
specially crafted web request to an affected SharePoint
server. An authenticated attacker could exploit the
vulnerability by sending a specially crafted request to
an affected SharePoint server. The attacker who
successfully exploited the vulnerability could then
perform cross-site scripting attacks on affected systems
and run script in the security context of the current
user. The attacks could allow the attacker to read
content that the attacker is not authorized to read, use
the victim's identity to take actions on the SharePoint
site on behalf of the user, such as change permissions
and delete content, and inject malicious content in the
browser of the user. The security update addresses the
vulnerability by helping to ensure that SharePoint
Server properly sanitizes web requests. (CVE-2019-1262)
- A remote code execution vulnerability exists in
Microsoft SharePoint where APIs aren't properly
protected from unsafe data input. An attacker who
successfully exploited the vulnerability could run
arbitrary code in the context of the SharePoint
application pool and the SharePoint server farm account.
Exploitation of this vulnerability requires that a user
access a susceptible API on an affected version of
SharePoint with specially-formatted input. The security
update addresses the vulnerability by correcting how
SharePoint handles deserialization of untrusted data.
(CVE-2019-1295, CVE-2019-1296)
- A remote code execution vulnerability exists in
Microsoft SharePoint when the software fails to check
the source markup of an application package. An attacker
who successfully exploited the vulnerability could run
arbitrary code in the context of the SharePoint
application pool and the SharePoint server farm account.
Exploitation of this vulnerability requires that a user
uploads a specially crafted SharePoint application
package to an affected version of SharePoint. The
security update addresses the vulnerability by
correcting how SharePoint checks the source markup of
application packages. (CVE-2019-1257)
- A spoofing vulnerability exists in Microsoft SharePoint
when it improperly handles requests to authorize
applications, resulting in cross-site request forgery
(CSRF). (CVE-2019-1259, CVE-2019-1261)");
# https://support.microsoft.com/en-us/help/4475605/security-update-for-sharepoint-foundation-2010
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3c085bce");
# https://support.microsoft.com/en-us/help/4484098/security-update-for-sharepoint-foundation-2013-september-10-2019
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3ddc5ed7");
# https://support.microsoft.com/en-us/help/4484099/security-update-for-sharepoint-foundation-2013-september-10-2019
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8c06995e");
# https://support.microsoft.com/en-us/help/4475590/security-update-for-sharepoint-enterprise-server-2016
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?15708b9a");
# https://support.microsoft.com/en-us/help/4475594/security-update-for-sharepoint-server-2016
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?097ca066");
# https://support.microsoft.com/en-us/help/4475596/security-update-for-sharepoint-server-2019-september-10
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?319bb185");
# https://support.microsoft.com/en-us/help/4464557/security-update-for-sharepoint-server-2019-language-pack
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c7d7f4dd");
script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
-KB4475605
-KB4475596
-KB4484098
-KB4484099
-KB4475590
-KB4475594
-KB4464557");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-1261");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/10");
script_set_attribute(attribute:"patch_publication_date", value:"2019/09/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/09/13");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:sharepoint");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("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('smb_func.inc');
include('smb_hotfixes.inc');
include('smb_hotfixes_fcheck.inc');
include('smb_reg_query.inc');
include('misc_func.inc');
include('install_func.inc');
include('lists.inc');
get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');
bulletin = 'MS19-09';
kbs = make_list(
'4475605', # 2010 SP2 Foundation
'4484098', # 2013 SP1 Foundation
'4484099', # 2013 SP1 Foundation
'4475590', # 2016 Enterprise
'4475594', # 2016 Enterprise
'4475596', # 2019
'4464557' # 2019
);
if (get_kb_item('Host/patch_management_checks'))
hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_WARNING);
get_kb_item_or_exit('SMB/Registry/Enumerated', exit_code:1);
# Get path information for Windows.
windir = hotfix_get_systemroot();
if (isnull(windir)) exit(1, 'Failed to determine the location of %windir%.');
registry_init();
install = get_single_install(app_name:'Microsoft SharePoint Server');
kb_checks =
{
'2010':
{ '2':
{'Foundation':
[{
'kb': '4475605',
'path':hotfix_get_commonfilesdir(),
'append':'microsoft shared\\web server extensions\\14\\bin',
'file':'onetutil.dll',
'version':'14.0.7237.5000',
'product_name':'Microsoft SharePoint Foundation Server 2010 SP 2'
}]
}
},
'2013':
{ '1':
{'Foundation':
[{
'kb': '4484098',
'path': hotfix_get_commonfilesdir(),
'append':'microsoft shared\\web server extensions\\15\\bin',
'file':'onetutil.dll',
'version':'15.0.5172.1000',
'product_name':'Microsoft SharePoint Foundation Server 2013 SP1'
},
{
'kb': '4484099',
# 'path': hotfix_get_commonfilesdir(),
# 'append':'microsoft shared\\dw\\1033',
# 'file':'dwintl20.dll',
# 'version':'15.0.4508.1000',
'product_name':'Microsoft SharePoint Foundation Server 2013 SP1'
}]
}
},
'2016':
{ '0':
{'Server':
[{
'kb': '4475590',
'path': install['path'],
'append':'transformapps',
'file':'docxpageconverter.exe',
'version':'16.0.4900.1000',
'product_name':'Microsoft SharePoint Enterprise Server 2016'
},
{
'kb': '4475594',
# 'path': install['path'],
# 'append':'webservices\\conversionservices\\1033',
# 'file':'wwintl.dll',
# 'version':'16.0.4900.1000',
'product_name':'Microsoft SharePoint Enterprise Server 2016'
}]
}
},
'2019':
{ '0':
{'Server':
[{
'kb': '4475596',
'path': install['path'],
'append':'bin',
'file':'microsoft.sharepoint.publishing.dll',
'version':'16.0.10350.20000',
'product_name':'Microsoft SharePoint Server 2019'
},
{
'kb': '4464557',
'path': install['path'],
'append':'webservices\\conversionservices\\1033',
'file':'wwintl.dll',
'version':'16.0.10350.20000',
'product_name':'Microsoft SharePoint Server 2019'
}]
}
}
};
# Get the specific product / path
param_list = kb_checks[install['Product']][install['SP']][install['Edition']];
# audit if not affected
if(isnull(param_list)) audit(AUDIT_INST_VER_NOT_VULN, 'Microsoft SharePoint Server');
vuln = FALSE;
xss = FALSE;
port = kb_smb_transport();
reg_keys = get_kb_list('SMB/Registry/HKLM/SOFTWARE/Microsoft/Windows/CurrentVersion/Uninstall/*/DisplayName');
# grab the path otherwise
foreach check (param_list)
{
if(check['kb'] == '4475594' || check['kb'] == '4484099')
{
are_we_vuln = HCF_OLDER;
foreach display_name (reg_keys)
{
if ('KB'+check['kb'] >< display_name)
{
are_we_vuln = HCF_OK;
break;
}
}
# need to check the 2013 patch supersede scenario
if (are_we_vuln != HCF_OK && check['kb'] == '4484099')
{
# Nov 2019 CU metadata
cumulative_kb = '4484153';
cumulative_path = install['path'];
cumulative_append = 'WebServices\\ConversionServices';
cumulative_file = 'msoserver.dll';
cumulative_version = '15.0.5179.1000';
c_path = hotfix_append_path(path:cumulative_path, value:cumulative_append);
cumlative_patch_applied = hotfix_check_fversion(
file:cumulative_file,
version:cumulative_version,
path:c_path,
kb:cumulative_kb,
product:check['product_name']
);
# if Nov Cu applied
if (cumlative_patch_applied != HCF_OLDER)
{
are_we_vuln = HCF_OK;
}
}
# need to check the 2016 patch supersede scenario
else if (are_we_vuln != HCF_OK && check['kb'] == '4475594')
{
# Nov 2019 CU metadata
cumulative_kb = '4484111';
cumulative_path = install['path'];
cumulative_append = 'transformapps';
cumulative_file = 'docxpageconverter.exe';
cumulative_version = '16.0.4909.1000';
c_path = hotfix_append_path(path:cumulative_path, value:cumulative_append);
cumlative_patch_applied = hotfix_check_fversion(
file:cumulative_file,
version:cumulative_version,
path:c_path,
kb:cumulative_kb,
product:check['product_name']
);
# if Nov Cu applied
if (cumlative_patch_applied != HCF_OLDER)
{
are_we_vuln = HCF_OK;
}
}
# if we are missing the normal check & we are not superseded, flag
if (are_we_vuln == HCF_OLDER)
{
report = '\n';
if (check['product_name'])
report += ' Product : ' + check['product_name'] + '\n';
if (check['kb'])
report += ' KB : ' + check['kb'] + '\n';
hotfix_add_report(report, kb:check['kb']);
}
}
# we are not one of the reg check patches
else
{
path = hotfix_append_path(path:check['path'], value:check['append']);
are_we_vuln = hotfix_check_fversion(
file:check['file'],
version:check['version'],
path:path,
kb:check['kb'],
product:check['product_name']
);
}
if (are_we_vuln == HCF_OLDER)
{
if (check['kb'] == '4484098') xss = TRUE;
vuln = TRUE;
}
}
if (!vuln)
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, 'affected');
}
replace_kb_item(name:'SMB/Missing/' + bulletin, value:TRUE);
if (xss) replace_kb_item(name:'www/' + port + '/XSS', value:TRUE);
hotfix_security_warning();
hotfix_check_fversion_end();
exit(0);
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