Vulnerability CVE-2018-8441

Vulnerability Name:

CVE-2018-8441 (CCN-149048)

Assigned:

2018-09-11

Published:

2018-09-11

Updated:

2018-11-02

Summary:

An elevation of privilege vulnerability exists due to an integer overflow in Windows Subsystem for Linux, aka "Windows Subsystem for Linux Elevation of Privilege Vulnerability." This affects Windows 10, Windows 10 Servers.

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

7.0 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.1 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/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): High Privileges Required (PR): Low User Interaction (UI): None
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

6.0 Medium (CCN CVSS v2 Vector: AV:L/AC:H/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): High Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-190

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2018-8441

Source: BID
Type: Third Party Advisory, VDB Entry
105271

Source: CCN
Type: BID-105271
Microsoft Windows Subsystem for Linux CVE-2018-8441 Local Privilege Escalation Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1041641

Source: XF
Type: UNKNOWN
ms-windows-cve20188441-priv-esc(149048)

Source: CCN
Type: Microsoft Security TechCenter - September 2018
Windows Subsystem for Linux Elevation of Privilege Vulnerability

Source: CONFIRM
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8441

Vulnerable Configuration:

Configuration 1:

cpe:/o:microsoft:windows_10:1803:*:*:*:*:*:*:*

OR cpe:/o:microsoft:windows_server_1803:-:*:*:*:*:*:x64:*

Configuration CCN 1:

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

OR cpe:/o:microsoft:windows_10_1507:-:*:*:*:*:*:x64:*

OR cpe:/o:microsoft:windows_server:1803:*:*:*:*:*:*:*

Denotes that component is vulnerable

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