Privilege Escalation Vulnerability in QQBrowser by Tencent
CVE-2020-10551

7.8HIGH

Key Information:

Vendor

Tencent

Status
Qqbrowser
Vendor
CVE Published:
9 April 2020

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-10551?

A security issue exists in QQBrowser versions prior to 10.5.3870.400, where the Windows service TsService.exe is installed in a manner that can be exploited by local attackers. The file is writable by all users within the NT AUTHORITY\Authenticated Users group, which encompasses both local and remote users. This accessibility allows malicious actors to create a harmful executable at the TsService location, potentially enabling them to escalate their privileges to the NT AUTHORITY\SYSTEM level.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-10551
Created by seqred-s-a

References

https://seqred.pl/en/cve-2020-10551-privilege-escalation-...
x_refsource_MISC
https://github.com/seqred-s-a/CVE-2020-10551
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability Reserved

.