7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.1 High
AI Score
Confidence
High
0.009 Low
EPSS
Percentile
82.3%
The Microsoft Visual Studio Products are missing security updates. It is, therefore, affected by multiple vulnerabilities:
An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2021-1651, CVE-2021-1680)
A denial of service (DoS) vulnerability. An attacker can exploit this issue to cause the affected component to deny system or application services. (CVE-2021-1723)
A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2020-26870)
#%NASL_MIN_LEVEL 70300
#
# (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('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(144977);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/30");
script_cve_id(
"CVE-2020-26870",
"CVE-2021-1651",
"CVE-2021-1680",
"CVE-2021-1723"
);
script_xref(name:"MSKB", value:"4584787");
script_xref(name:"MSFT", value:"MS21-4584787");
script_xref(name:"IAVA", value:"2021-A-0021");
script_xref(name:"CEA-ID", value:"CEA-2021-0001");
script_name(english:"Security Updates for Microsoft Visual Studio Products (January 2021)");
script_set_attribute(attribute:"synopsis", value:
"The Microsoft Visual Studio Products are affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The Microsoft Visual Studio Products are missing security
updates. It is, therefore, affected by multiple
vulnerabilities:
- An elevation of privilege vulnerability. An attacker can
exploit this to gain elevated privileges.
(CVE-2021-1651, CVE-2021-1680)
- A denial of service (DoS) vulnerability. An attacker can
exploit this issue to cause the affected component to
deny system or application services. (CVE-2021-1723)
- A remote code execution vulnerability. An attacker can
exploit this to bypass authentication and execute
unauthorized arbitrary commands. (CVE-2020-26870)");
# https://support.microsoft.com/en-us/help/4584787/security-update-for-visual-studio-2015-update-3
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?459d683d");
script_set_attribute(attribute:"solution", value:
"Microsoft has released the following security updates to address this issue:
- Install KB4584787 for Visual Studio 2015
- Update 15.9.31 for Visual Studio 2017
- Update 16.0.22 for Visual Studio 2019
- Update 16.4.17 for Visual Studio 2019
- Update 16.7.10 for Visual Studio 2019
- Update 16.8.4 for Visual Studio 2019");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/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-2021-1651");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-1680");
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:"2021/01/12");
script_set_attribute(attribute:"patch_publication_date", value:"2021/01/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/01/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:visual_studio");
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) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ms_bulletin_checks_possible.nasl", "microsoft_visual_studio_installed.nbin");
script_require_keys("SMB/MS_Bulletin_Checks/Possible", "installed_sw/Microsoft Visual Studio");
script_require_ports(139, 445, "Host/patch_management_checks");
exit(0);
}
include('install_func.inc');
include('smb_func.inc');
include('smb_hotfixes.inc');
get_kb_item_or_exit('installed_sw/Microsoft Visual Studio');
port = kb_smb_transport();
appname = 'Microsoft Visual Studio';
installs = get_installs(app_name:appname, exit_if_not_found:TRUE);
report = '';
foreach install (installs[1])
{
version = install['version'];
path = install['path'];
prod = install['product_version'];
fix = '';
# https://docs.microsoft.com/en-us/visualstudio/install/visual-studio-build-numbers-and-release-dates?view=vs-2017
#
# VS 2017
if (prod == '2017')
{
fix = '15.9.28307.1342';
if (ver_compare(ver: version, fix: fix, strict:FALSE) < 0)
{
report +=
'\n Path : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : ' + fix +
'\n';
}
}
# https://docs.microsoft.com/en-us/visualstudio/install/visual-studio-build-numbers-and-release-dates?view=vs-2019
#
# VS 2019 Version 16.0
else if (prod == '2019' && version =~ "^16\.0\.")
{
fix = '16.0.28803.916';
if (ver_compare(ver: version, fix: fix, strict:FALSE) < 0)
{
report +=
'\n Path : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : ' + fix +
'\n';
}
}
# VS 2019 Version 16.4
else if (prod == '2019' && version =~ "^16\.[1-4]\.")
{
fix = '16.4.30816.121';
if (ver_compare(ver: version, fix: fix, strict:FALSE) < 0)
{
report +=
'\n Path : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : ' + fix +
'\n';
}
}
# VS 2019 Version 16.4
else if (prod == '2019' && version =~ "^16\.[5-7]\.")
{
fix = '16.7.30816.78';
if (ver_compare(ver: version, fix: fix, strict:FALSE) < 0)
{
report +=
'\n Path : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : ' + fix +
'\n';
}
}
# VS 2019 Version 16.8
else if (prod == '2019' && version =~ "^16\.8\.")
{
fix = '16.8.30907.101';
if (ver_compare(ver: version, fix: fix, strict:FALSE) < 0)
{
report +=
'\n Path : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : ' + fix +
'\n';
}
}
}
hotfix_check_fversion_end();
if (empty(report))
audit(AUDIT_INST_VER_NOT_VULN, appname);
security_report_v4(port:port, severity:SECURITY_HOLE, extra:report);
Vendor | Product | Version | CPE |
---|---|---|---|
microsoft | visual_studio | cpe:/a:microsoft:visual_studio |
7.2 High
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.1 High
AI Score
Confidence
High
0.009 Low
EPSS
Percentile
82.3%