Vulnerability Name:

CVE-2021-31204 (CCN-200825)

Assigned:2021-05-11
Published:2021-05-11
Updated:2022-05-03
Summary:.NET and Visual Studio 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
7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/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): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.3 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)
6.4 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/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): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
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-noinfo
CWE-273
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2021-31204

Source: XF
Type: UNKNOWN
ms-dotnet-cve202131204-priv-esc(200825)

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-721731dc86

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-13e3bd248f

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-a3c205f5b2

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-d551431950

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-f25eb9e302

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-c06b64b5ee

Source: CCN
Type: Microsoft Security TechCenter - May 2021
.NET Core and Visual Studio Elevation of Privilege Vulnerability

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

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:* (Version >= 16.8.0 and < 16.9.5)
  • OR cpe:/a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:* (Version >= 16.5.0 and < 16.7.15)
  • OR cpe:/a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:* (Version >= 16.0 and < 16.4.22)
  • OR cpe:/a:microsoft:visual_studio_2019:8.9:*:*:*:*:macos:*:*
  • OR cpe:/a:microsoft:.net:*:*:*:*:*:*:*:* (Version >= 5.0 and <= 5.0.5)
  • OR cpe:/a:microsoft:.net_core:*:*:*:*:*:*:*:* (Version >= 3.1 and <= 3.1.14)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*

    • Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:microsoft:visual_studio_2019:16.0:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:visual_studio_2019:16.1:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:visual_studio_2019:16.2:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:visual_studio_2019:16.3:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:.net_core:3.1:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:visual_studio_2019:16.4:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:visual_studio_2019:16.5:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:.net_core:5.0:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:visual_studio_2019:16.6:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:visual_studio_2019:16.7:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:visual_studio_2019:16.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.redhat.rhsa:def:20212036
    P
    		RHSA-2021:2036: dotnet5.0 security and bugfix update (Important)
    2021-05-19
    oval:com.redhat.rhsa:def:20212037
    P
    		RHSA-2021:2037: dotnet3.1 security and bugfix update (Important)
    2021-05-19
    BACK
    microsoft visual studio 2019 *
    microsoft visual studio 2019 *
    microsoft visual studio 2019 *
    microsoft visual studio 2019 8.9
    microsoft .net *
    microsoft .net core *
    fedoraproject fedora 32
    fedoraproject fedora 33
    fedoraproject fedora 34
    microsoft visual studio 2019 16.0
    microsoft visual studio 2019 16.1
    microsoft visual studio 2019 16.2
    microsoft visual studio 2019 16.3
    microsoft .net core 3.1
    microsoft visual studio 2019 16.4
    microsoft visual studio 2019 16.5
    microsoft .net core 5.0
    microsoft visual studio 2019 16.6
    microsoft visual studio 2019 16.7
    microsoft visual studio 2019 16.8