Vulnerability CVE-2021-31166

Vulnerability Name:

CVE-2021-31166 (CCN-200796)

Assigned:

2021-05-11

Published:

2021-05-11

Updated:

2023-08-02

Summary:

CVSS v3 Severity:

9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2021-31166

Source: secure@microsoft.com
Type: Third Party Advisory, VDB Entry
secure@microsoft.com

Source: XF
Type: UNKNOWN
ms-windows-cve202131166-code-exec(200796)

Source: CCN
Type: Packet Storm Security [05-20-2021]
Microsoft HTTP Protocol Stack Remote Code Execution

Source: CCN
Type: Microsoft Security TechCenter - May 2021
HTTP Protocol Stack Remote Code Execution Vulnerability

Source: secure@microsoft.com
Type: Patch, Vendor Advisory
secure@microsoft.com

Vulnerable Configuration:

Configuration CCN 1:

cpe:/o:microsoft:windows_10:2004:*:*:*:*:*:x32:*

OR cpe:/o:microsoft:windows_10_2004:-:*:*:*:*:*:arm64:*

OR cpe:/o:microsoft:windows_10_2004:-:*:*:*:*:*:x64:*

OR cpe:/o:microsoft:windows_10:20h2:*:*:*:*:*:x32:*

OR cpe:/o:microsoft:windows_10_20h2:-:*:*:*:*:*:arm64:*

OR cpe:/o:microsoft:windows_10_20h2:-:*:*:*:*:*:x64:*

OR cpe:/o:microsoft:windows_server:2004:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_server:20h2:*:*:*:*:*:*:*

Denotes that component is vulnerable

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