SB2019111223 - Privilege escalation in Windows User Profile Service
Published: November 12, 2019
Security Bulletin ID
SB2019111223
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Link following (CVE-ID: CVE-2019-1454)
CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the Windows User Profile Service (ProfSvc) does not properly handles symbolic links. A local user can create a specially crafted symbolic link and elevate privileges on the system.
Remediation
Install update from vendor's website.