Vulnerability CVE-2018-8253

Vulnerability Name:

CVE-2018-8253 (CCN-147711)

Assigned:

2018-08-14

Published:

2018-08-14

Updated:

2019-10-03

Summary:

An elevation of privilege vulnerability exists when Microsoft Cortana allows arbitrary website browsing on the lockscreen, aka "Microsoft Cortana Elevation of Privilege Vulnerability." This affects Windows Server 2016, Windows 10.

CVSS v3 Severity:

4.6 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
4.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C)

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

4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N)
3.6 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C)

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

CVSS v2 Severity:

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

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

3.8 Low (CCN CVSS v2 Vector: AV:L/AC:H/Au:S/C:C/I:N/A:N)

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

Vulnerability Type:

CWE-noinfo

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2018-8253

Source: BID
Type: Third Party Advisory, VDB Entry
105009

Source: CCN
Type: BID-105009
Microsoft Windows Cortana CVE-2018-8253 Local Privilege Escalation Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1041477

Source: XF
Type: UNKNOWN
ms-cortana-cve20188253-priv-esc(147711)

Source: CCN
Type: Microsoft Security TechCenter - August 2018
Microsoft Cortana Elevation of Privilege Vulnerability

Source: CONFIRM
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8253

Vulnerable Configuration:

Configuration 1:

cpe:/o:microsoft:windows_10:1607:*:*:*:*:*:*:*

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

Configuration CCN 1:

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

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

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

Denotes that component is vulnerable

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