Vulnerability Name:

CVE-2020-0837 (CCN-187263)

Assigned:2019-11-04
Published:2020-09-08
Updated:2021-07-21
Summary:A spoofing vulnerability exists when Active Directory Federation Services (ADFS) improperly handles multi-factor authentication requests.To exploit this vulnerability, an attacker could send a specially crafted authentication request, aka 'ADFS Spoofing Vulnerability'.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/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): None
Integrity (I): High
Availibility (A): None
5.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L)
4.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/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): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
4.6 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-287
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-0837

Source: XF
Type: UNKNOWN
ms-adfs-cve20200837-spoofing(187263)

Source: CCN
Type: Microsoft Security TechCenter - September 2020
ADFS Spoofing Vulnerability

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

Vulnerable Configuration:Configuration 1:
  • cpe:/o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:*
  • 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_server_2016:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_1903:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_1909:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2004:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:microsoft:windows_10:-:*:*:*:*:*:x32:*
  • OR cpe:/o:microsoft:windows_10:::~~~~x64~:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:-:*:*:*:*:*:arm64:*
  • OR cpe:/o:microsoft:windows_server:1903:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server:1909:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server:2004:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    microsoft windows 10 1607
    microsoft windows 10 1607
    microsoft windows 10 1809
    microsoft windows 10 1903
    microsoft windows 10 1909
    microsoft windows 10 2004
    microsoft windows server 2016 -
    microsoft windows server 2016 1903
    microsoft windows server 2016 1909
    microsoft windows server 2016 2004
    microsoft windows server 2019 -
    microsoft windows 10 -
    microsoft windows 10
    microsoft windows server 2016
    microsoft windows server 2019
    microsoft windows 10 -
    microsoft windows server 1903
    microsoft windows server 1909
    microsoft windows server 2004