SB2019091033 - Privilege escalation in Microsoft Windows Text Service Framework

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Main Vulnerability Database SB2019091033

SB2019091033 - Privilege escalation in Microsoft Windows Text Service Framework

Published: September 10, 2019

Security Bulletin ID SB2019091033
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Insufficient verification of data authenticity (CVE-ID: CVE-2019-1235)

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/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 insufficient validation of input data origin within the Windows Text Service Framework (TSF) server, sent through a malicious Input Method Editor (IME). A local user can run a specially crafted application and escalate privileges on the system.

Successful exploitation of the vulnerability requires that IME is installed on the system.


Remediation

Install update from vendor's website.

References