Vulnerability CVE-2020-1467

Vulnerability Name:

CVE-2020-1467 (CCN-185896)

Assigned:

2019-11-04

Published:

2020-08-11

Updated:

2021-07-21

Summary:

An elevation of privilege vulnerability exists when Windows improperly handles hard links, aka 'Windows Hard Link Elevation of Privilege Vulnerability'.

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: 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)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: 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)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-269

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2020-1467

Source: XF
Type: UNKNOWN
ms-hard-cve20201467-priv-esc(185896)

Source: CCN
Type: Microsoft Security TechCenter - August 2020
Windows Hard Link Elevation of Privilege Vulnerability

Source: N/A
Type: Patch, Vendor Advisory
N/A

Vulnerable Configuration:

Configuration 1:

cpe:/o:microsoft:windows_10:1607:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_10:1809:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_10:1903:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_10:1909:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_10:2004:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_7:-:sp1:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_8.1:-:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*