CVE-2020-10551: High severity tencent qq browser vulnerability

Q: What is CVE-2020-10551?

CVE-2020-10551 is a vulnerability in QQBrowser that allows local attackers to escalate privileges to NT AUTHORITY\SYSTEM.

Q: What is the severity of CVE-2020-10551?

CVE-2020-10551 has a severity rating of 7.8, which is considered high.

Q: How does CVE-2020-10551 work?

CVE-2020-10551 occurs because QQBrowser installs a Windows service (TsService.exe) that is writable by anyone belonging to the NT AUTHORITY\Authenticated Users group.

Q: Who is affected by CVE-2020-10551?

Users of QQBrowser before version 10.5.3870.400 are affected by CVE-2020-10551.

Q: How do I fix CVE-2020-10551?

To fix CVE-2020-10551, users should update QQBrowser to version 10.5.3870.400 or newer.

Published Apr 9, 2020

Updated

QQBrowser before 10.5.3870.400 installs a Windows service TsService.exe. This file is writable by anyone belonging to the NT AUTHORITY\Authenticated Users group, which includes all local and remote users. This can be abused by local attackers to escalate privileges to NT AUTHORITY\SYSTEM by writing a malicious executable to the location of TsService.

Affected Software

1 affected component

Tencent Qqbrowser<10.5.3870.400

Event History

Apr 9, 2020

CVE Published

via MITRE·12:38 PM

Data Sourced

via MITRE·12:38 PM

Description

Frequently Asked Questions

What is CVE-2020-10551?

CVE-2020-10551 is a vulnerability in QQBrowser that allows local attackers to escalate privileges to NT AUTHORITY\SYSTEM.

What is the severity of CVE-2020-10551?

CVE-2020-10551 has a severity rating of 7.8, which is considered high.

How does CVE-2020-10551 work?

CVE-2020-10551 occurs because QQBrowser installs a Windows service (TsService.exe) that is writable by anyone belonging to the NT AUTHORITY\Authenticated Users group.

Who is affected by CVE-2020-10551?

Users of QQBrowser before version 10.5.3870.400 are affected by CVE-2020-10551.

How do I fix CVE-2020-10551?