Vulnerability Name:

CVE-2021-42278 (CCN-212878)

Assigned:2021-11-09
Published:2021-11-09
Updated:2021-11-12
Summary:Active Directory Domain Services Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-42282, CVE-2021-42287, CVE-2021-42291.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.9 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
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
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
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:6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.1 High (CCN CVSS v2 Vector: AV:N/AC:H/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
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-2021-42278

Source: XF
Type: UNKNOWN
ms-windows-cve202142278-priv-esc(212878)

Source: CCN
Type: Exploit Web site
CVE-2021-42287/CVE-2021-42278 Weaponisation

Source: CCN
Type: Microsoft Security TechCenter - November 2021
CVE-2021-42278 - Active Directory Domain Services Elevation of Privilege Vulnerability

Source: MISC
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42278

Vulnerable Configuration:Configuration 1:
  • cpe:/o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_20h2:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2004:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server:2004:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server:20h2:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2008:*:sp2:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2008:*:sp2:*:*:*:*:x32:*
  • OR cpe:/o:microsoft:windows_server_2008:*:sp2:*:*:*:*:x32:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server:2022:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server:2022:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:*:sp2:*:*:*:*:x64:*

  • * Denotes that component is vulnerable
    BACK
    microsoft windows server 2008 - sp2
    microsoft windows server 2008 r2 sp1
    microsoft windows server 2012 -
    microsoft windows server 2012 r2
    microsoft windows server 2016 -
    microsoft windows server 2016 20h2
    microsoft windows server 2016 2004
    microsoft windows server 2019 -
    microsoft windows server 2022 -
    microsoft windows server 2012
    microsoft windows server 2012 r2
    microsoft windows server 2016
    microsoft windows server 2019
    microsoft windows server 2019
    microsoft windows server 2004
    microsoft windows server 20h2
    microsoft windows server 2016
    microsoft windows server 2012 r2
    microsoft windows server 2012
    microsoft windows server 2008 r2
    microsoft windows server 2008 sp2
    microsoft windows server 2008 sp2
    microsoft windows server 2008 sp2
    microsoft windows server 2008 r2
    microsoft windows server 2022
    microsoft windows server 2022
    microsoft windows server 2008 sp2