Permissions, Privileges, and Access Controls in Microsoft Edge - CVE-2021-36928

 

Permissions, Privileges, and Access Controls in Microsoft Edge - CVE-2021-36928

Published: July 23, 2021 / Updated: August 3, 2021


Vulnerability identifier: #VU55275
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-36928
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Edge

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists within Edge Installer. A local user can create a directory junction and force the Edge Installer to delete files with elevated privileges.

Successful exploitation of the vulnerability may allow a local user to execute arbitrary code with SYSTEM privileges.


How to mitigate CVE-2021-36928

Install updates from vendor's website.

Sources