Multiple vulnerabilities in Microsoft Windows Hard Link
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2020-0849 CVE-2020-0841 CVE-2020-0840 CVE-2020-0896 |
| CWE-ID | 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 4 vulnerabilities.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU25924
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-0849
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 hard links. A local user can create a malicious application, launch it on the system and overwrite a targeted file leading to an elevated status.
To exploit this vulnerability, an attacker would first have to log on to the system.
MitigationInstall update from vendor's website.
Vulnerable software versionsWindows: 7 - 10 1909
Windows Server: 2008 - 2019 1909
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0849
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) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU25923
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-0841
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 hard links. A local user can create a malicious application, launch it on the system and overwrite a targeted file leading to an elevated status.
To exploit this vulnerability, an attacker would first have to log on to the system.
MitigationInstall update from vendor's website.
Vulnerable software versionsWindows: 10 - 10 1909
Windows Server: 2016 - 2019 1909
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0841
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: #VU25922
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-0840
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 hard links. A local user can create a malicious application, launch it on the system and overwrite a targeted file leading to an elevated status.
To exploit this vulnerability, an attacker would first have to log on to the system.
MitigationInstall update from vendor's website.
Vulnerable software versionsWindows: 8.1 - 10 1909
Windows Server: 2012 R2 - 2019 1909
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0840
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.
4) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU25921
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-0896
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 hard links. A local user can create a malicious application, launch it on the system and overwrite a targeted file leading to an elevated status.
To exploit this vulnerability, an attacker would first have to log on to the system.
MitigationInstall update from vendor's website.
Vulnerable software versionsWindows: 10 - 10 1909
Windows Server: 2016 - 2019 1909
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0896
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.
