Vulnerability Name:

CVE-2021-43242 (CCN-214313)

Assigned:2021-12-14
Published:2021-12-14
Updated:2022-07-12
Summary:Microsoft SharePoint Server Spoofing Vulnerability This CVE ID is unique from CVE-2021-42320.
CVSS v3 Severity:5.7 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N)
5.0 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
7.6 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N)
6.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-43242

Source: XF
Type: UNKNOWN
ms-sharepoint-cve202143242-spoofing(214313)

Source: CCN
Type: Microsoft Security TechCenter - December 2021
CVE-2021-43242 - Microsoft SharePoint Server Spoofing Vulnerability

Source: MISC
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43242

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_server:-:*:*:*:subscription:*:*:*

  • Configuration CCN 1:
  • cpe:/a:microsoft:sharepoint_enterprise_server:2016:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_enterprise_server:2013:sp1:*:*:*:*:*:*
  • OR cpe:/a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    microsoft sharepoint foundation 2013 sp1
    microsoft sharepoint enterprise server 2016
    microsoft sharepoint server 2019
    microsoft sharepoint server -
    microsoft sharepoint enterprise server 2016 -
    microsoft sharepoint enterprise server 2013 sp1
    microsoft sharepoint server 2019