CVE-2020-10551

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

QQBrowser versiones anteriores a 10.5.3870.400, instala un servicio TsService.exe de Windows. Este archivo puede ser escrito por cualquier persona que pertenezca al grupo de Usuarios NT AUTHORITY\Authenticated, que incluye a todos los usuarios locales y remotos. Los atacantes locales pueden abusar de esto para escalar privilegios a NT AUTHORITY\SYSTEM escribiendo un ejecutable malicioso en la ubicación de TsService.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-03-13 CVE Reserved
2020-04-09 CVE Published
2023-12-26 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-732: Incorrect Permission Assignment for Critical Resource

CAPEC

References (2)

URL	Tag	Source
https://seqred.pl/en/cve-2020-10551-privilege-escalation-in-qqbrowser	Third Party Advisory

URL	Date	SRC
https://github.com/seqred-s-a/CVE-2020-10551	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Tencent Search vendor "Tencent"		Qqbrowser Search vendor "Tencent" for product "Qqbrowser"				< 10.5.3870.400 Search vendor "Tencent" for product "Qqbrowser" and version " < 10.5.3870.400"		-		Affected