Vulnerability Name:

CCN-212266

Published:2021-10-27
Updated:2021-10-27
Summary:Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw in the Windows Update Assistant. By creating a directory junction, an authenticated attacker could exploit this vulnerability to gain elevated privileges and execute arbitrary code in the context of Administrator.
CVSS v3 Severity:8.2 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H)
7.2 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity: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 Privileges
References:Source: XF
Type: UNKNOWN
ms-windows-updateassistant-priv-esc(212266)

Source: CCN
Type: Microsoft Web site
Microsoft Windows

Source: CCN
Type: ZDI-21-1233
(0Day) Microsoft Windows Update Assistant Directory Junction Privilege Escalation Vulnerability

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:microsoft:windows:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    microsoft windows -