Vulnerability CVE-2020-17140 - CERT Civis.Net

Vulnerability Name:

CVE-2020-17140 (CCN-192272)

Assigned:

2020-12-08

Published:

2020-12-08

Updated:

2021-07-21

Summary:

Windows SMB Information Disclosure Vulnerability

CVSS v3 Severity:

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

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

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

CVSS v2 Severity:

4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N)

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

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

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

Vulnerability Type:

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2020-17140

Source: XF
Type: UNKNOWN
ms-windows-cve202017140-info-disc(192272)

Source: CCN
Type: Microsoft Security TechCenter - December 2020
Windows SMB Information Disclosure Vulnerability

Source: MISC
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17140

Vulnerable Configuration:

Configuration 1:

cpe:/o:microsoft:windows_10:-:*:*:*:*:*:*:*

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

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

OR cpe:/o:microsoft:windows_10_20h2:-:*:*:*:*:*:x86:*

OR cpe:/o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:*

OR cpe:/o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:*

OR cpe:/o:microsoft:windows_10_1803:-:*:*:*:*:*:arm64:*

OR cpe:/o:microsoft:windows_10_1803:-:*:*:*:*:*:x64:*

OR cpe:/o:microsoft:windows_10_1803:-:*:*:*:*:*:x86:*

OR cpe:/o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:*

OR cpe:/o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:*

OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*

OR cpe:/o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_8.1:-:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_7:-:sp1:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:*

OR cpe:/o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_10_1903:-:*:*:*:*:*:x64:*

OR cpe:/o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_10_1909:-:*:*:*:*:*:x64:*

OR cpe:/o:microsoft:windows_10_1909:-:*:*:*:*:*:arm64:*

OR cpe:/o:microsoft:windows_10_1903:-:*:*:*:*:*:x86:*

OR cpe:/o:microsoft:windows_10_1903:-:*:*:*:*:*:arm64:*

OR cpe:/o:microsoft:windows_10_1909:-:*:*:*:*:*:x86:*

OR cpe:/o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*

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

OR cpe:/o:microsoft:windows_10_2004:-:*:*:*:*:*:x86:*

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

OR cpe:/o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/o:microsoft:windows_7:-:sp1:-:*:-:-:x32:*

OR cpe:/o:microsoft:windows_7::sp1:x64:*:*:*:*:*

OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*

OR cpe:/o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_8.1:-:-:-:*:-:-:x32:*

OR cpe:/o:microsoft:windows_8.1:::~~~~x64~:*:*:*:*:*

OR cpe:/o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_10:-:*:*:*:*:*:x32:*

OR cpe:/o:microsoft:windows_10:::~~~~x64~:*:*:*:*:*

OR cpe:/o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_10:-:*:*:*:*:*:arm64:*

OR cpe:/o:microsoft:windows_server:1903:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_server:1909:*:*:*:*:*:*:*

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

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

Denotes that component is vulnerable