Vulnerability CVE-2021-31198

Vulnerability Name:

CVE-2021-31198 (CCN-200824)

Assigned:

2021-05-11

Published:

2021-05-11

Updated:

2023-08-02

Summary:

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/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): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/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): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

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

6.8 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 Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2021-31198

Source: XF
Type: UNKNOWN
ms-exchange-cve202131198-code-exec(200824)

Source: CCN
Type: Microsoft Security TechCenter - May 2021
Microsoft Exchange Server Remote Code Execution Vulnerability

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

Source: CCN
Type: ZDI-21-894
(Pwn2Own) Microsoft Exchange Server OAB Arbitrary File Write Remote Code Execution Vulnerability

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

Vulnerable Configuration:

Configuration CCN 1:

cpe:/a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*

OR cpe:/a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*

OR cpe:/a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*

OR cpe:/a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:*

OR cpe:/a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*

Denotes that component is vulnerable

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