Vulnerability Name:

CVE-2019-0975 (CCN-162952)

Assigned:2018-11-26
Published:2019-07-09
Updated:2020-08-24
Summary:A security feature bypass vulnerability exists when Active Directory Federation Services (ADFS) improperly updates its list of banned IP addresses. To exploit this vulnerability, an attacker would have to convince a victim ADFS administrator to update the list of banned IP addresses. This security update corrects how ADFS updates its list of banned IP addresses., aka 'ADFS Security Feature Bypass Vulnerability'. This CVE ID is unique from CVE-2019-1126.
CVSS v3 Severity:6.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
5.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
6.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
5.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.5 Medium (CCN 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
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2019-0975

Source: XF
Type: UNKNOWN
ms-windows-cve20190975-sec-bypass(162952)

Source: CCN
Type: Microsoft Security TechCenter - July 2019
ADFS Security Feature Bypass Vulnerability

Source: MISC
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0975

Vulnerable Configuration:Configuration 1:
  • cpe:/o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_1803:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_1903:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server:1803:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    microsoft windows server 2016 -
    microsoft windows server 2016 1803
    microsoft windows server 2016 1903
    microsoft windows server 2019 -
    microsoft windows server 2016
    microsoft windows server 1803
    microsoft windows server 2019