Multiple vulnerabilities in Microsoft Windows
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2020-16922 CVE-2020-16910 CVE-2020-16877 |
| CWE-ID | CWE-451 CWE-254 CWE-264 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Spoofing attack
EUVDB-ID: #VU47613
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-16922
CWE-ID:
CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to perform spoofing attack.
The vulnerability exists due to Windows incorrectly validates file signatures. A local attacker can spoof page content, bypass security features and load improperly signed files.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 7 - 10 2004
Windows Server: 2008 - 2019 2004
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16922
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Security Features
EUVDB-ID: #VU47614
Risk: Low
CVSSv3.1: 5.4 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-16910
CWE-ID:
CWE-254 - Security Features
Exploit availability: No
DescriptionThis vulnerability allows a local attacker to bypass security rescritions feature.
The vulnerability exists due to the Microsoft Windows fails to handle file creation permissions. A local attacker can run a specially crafted application to bypass Unified Extensible Firmware Interface (UEFI) variable security in Windows.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 10 - 10 2004
Windows Server: 2016 - 2019 2004
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16910
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU47615
Risk: Low
CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-16877
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the way Windows handles reparse points. A local user can create a malicious application, launch it on the system and overwrite or delete a targeted file that would normally require elevated permissions.
MitigationInstall update from vendor's website.
Vulnerable software versionsWindows: 10 1903 - 10 2004
Windows Server: 2019 1903 - 2019 2004
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16877
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
