CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
95.7%
The Microsoft SharePoint installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2020-1495)
A spoofing 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.
These 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-2020-1499, CVE-2020-1500, CVE-2020-1501)
An information disclosure vulnerability exists when Microsoft SharePoint Server fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the users system. (CVE-2020-1505)
An information disclosure vulnerability exists when Microsoft Word improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the users computer or data. (CVE-2020-1503, CVE-2020-1583)
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-2020-1573, CVE-2020-1580)
#
# (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(139500);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/26");
script_cve_id(
"CVE-2020-1495",
"CVE-2020-1499",
"CVE-2020-1500",
"CVE-2020-1501",
"CVE-2020-1503",
"CVE-2020-1505",
"CVE-2020-1573",
"CVE-2020-1580",
"CVE-2020-1583"
);
script_xref(name:"MSKB", value:"4484191");
script_xref(name:"MSKB", value:"4484462");
script_xref(name:"MSKB", value:"4484490");
script_xref(name:"MSKB", value:"4484498");
script_xref(name:"MSFT", value:"MS20-4484191");
script_xref(name:"MSFT", value:"MS20-4484462");
script_xref(name:"MSFT", value:"MS20-4484498");
script_xref(name:"MSFT", value:"MS20-4484490");
script_xref(name:"IAVA", value:"2020-A-0362-S");
script_xref(name:"CEA-ID", value:"CEA-2020-0101");
script_name(english:"Security Updates for Microsoft SharePoint 2010 (August 2020)");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft SharePoint installation on the remote host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Microsoft SharePoint installation on the remote
host is missing security updates. It is, therefore, affected
by multiple vulnerabilities :
- A remote code execution vulnerability exists in
Microsoft Excel software when the software fails to
properly handle objects in memory. An attacker who
successfully exploited the vulnerability could run
arbitrary code in the context of the current user. If
the current user is logged on with administrative user
rights, an attacker could take control of the affected
system. An attacker could then install programs; view,
change, or delete data; or create new accounts with full
user rights. (CVE-2020-1495)
- A spoofing 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.
These 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-2020-1499,
CVE-2020-1500, CVE-2020-1501)
- An information disclosure vulnerability exists when
Microsoft SharePoint Server fails to properly handle
objects in memory. An attacker who successfully
exploited this vulnerability could obtain information to
further compromise the users system. (CVE-2020-1505)
- An information disclosure vulnerability exists when
Microsoft Word improperly discloses the contents of its
memory. An attacker who exploited the vulnerability
could use the information to compromise the users
computer or data. (CVE-2020-1503,
CVE-2020-1583)
- 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-2020-1573,
CVE-2020-1580)");
# https://support.microsoft.com/en-us/help/4484191/security-update-for-sharepoint-server-2010-august-11-2020
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b34cadea");
# https://support.microsoft.com/en-us/help/4484498/security-update-for-sharepoint-server-2010-august-11-2020
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?812c68d9");
# https://support.microsoft.com/en-us/help/4484490/security-update-for-sharepoint-server-2010-august-11-2020
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e21d3d66");
# https://support.microsoft.com/en-us/help/4484462/security-update-for-sharepoint-foundation-2010-august-11-2020
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?aae1b32c");
script_set_attribute(attribute:"solution", value:
"Microsoft has released security updates for Microsoft SharePoint.");
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_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:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-1495");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-1583");
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:"2020/08/11");
script_set_attribute(attribute:"patch_publication_date", value:"2020/08/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/08/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:sharepoint_foundation");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:sharepoint_server");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2020-2024 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 = 'MS20-07';
kbs = make_list(
'4484191',
'4484462',
'4484490',
'4484498'
);
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);
# Get path information for Windows.
windir = hotfix_get_systemroot();
if (isnull(windir)) exit(1, 'Failed to determine the location of %windir%.');
install = get_single_install(app_name:'Microsoft SharePoint Server');
kb_checks =
{
'2010':
{ '2':
{'Foundation':
[{
'kb' : '4484462',
'path' : hotfix_get_commonfilesdir(),
'append' : 'microsoft shared\\web server extensions\\14\\bin',
'file' : 'onetutil.dll',
'version' : '14.0.7256.5000',
'product_name' : 'Microsoft SharePoint Foundation Server 2010 SP 2'
},
{
'kb' : '4484498',
'path' : install['path'],
'append' : 'transformapps',
'file' : 'docxpageconverter.exe',
'version' : '14.0.7256.5000',
'product_name' : 'Microsoft SharePoint Foundation Server 2010 SP 2'
}],
'Server':
[{
'kb' : '4484490',
'path' : install['path'],
'append' : 'WebServices\\ConversionServices',
'file' : 'sword.dll',
'version' : '14.0.7256.5000',
'product_name' : 'Microsoft SharePoint Server 2010 SP 2'
},
{
'kb' : '4484191',
'path' : install['path'],
'append' : 'bin',
'file' : 'xlsrv.dll',
'version' : '14.0.7256.5000',
'product_name' : 'Microsoft SharePoint Server 2010 SP 2'
},
{
'kb' : '4484498',
'path' : install['path'],
'append' : 'transformapps',
'file' : 'docxpageconverter.exe',
'version' : '14.0.7256.5000',
'product_name' : 'Microsoft SharePoint Server 2010 SP 2'
}]
}
}
};
# 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();
# grab the path otherwise
foreach check (param_list)
{
if (!isnull(check['version']))
{
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']
);
}
else
{
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']);
}
if(are_we_vuln == HCF_OLDER)
{
vuln = TRUE;
if (check['kb'] == '4484498') xss = TRUE;
}
}
if (vuln)
{
port = kb_smb_transport();
replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
if (xss) replace_kb_item(name:'www/' + port + '/XSS', value:TRUE);
hotfix_security_hole();
hotfix_check_fversion_end();
exit(0);
}
else
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, 'affected');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1495
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1499
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1500
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1501
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1503
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1505
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1573
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1580
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1583
www.nessus.org/u?812c68d9
www.nessus.org/u?aae1b32c
www.nessus.org/u?b34cadea
www.nessus.org/u?e21d3d66
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
95.7%