CVE-2020-7352

GOG Galaxy GalaxyClientService Privilege Escalation

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The GalaxyClientService component of GOG Galaxy runs with elevated SYSTEM privileges in a Windows environment. Due to the software shipping with embedded, static RSA private key, an attacker with this key material and local user permissions can effectively send any operating system command to the service for execution in this elevated context. The service listens for such commands on a locally-bound network port, localhost:9978. A Metasploit module has been published which exploits this vulnerability. This issue affects the 2.0.x branch of the software (2.0.12 and earlier) as well as the 1.2.x branch (1.2.64 and earlier). A fix was issued for the 2.0.x branch of the affected software.

El componente GalaxyClientService de GOG Galaxy se ejecuta con privilegios SYSTEM elevados en un entorno Windows. Debido a que el software se entrega con clave privada RSA estática incorporada, un atacante con este material clave y permisos de usuario local puede enviar de forma efectiva cualquier comando del sistema operativo hacia el servicio para su ejecución en este contexto elevado. El servicio escucha dichos comandos en un puerto de red enlazado localmente, localhost: 9978. Se ha publicado un módulo Metasploit que explota esta vulnerabilidad. Este problema afecta a la rama 2.0.x del software (versión 2.0.12 y anteriores), así como a la rama 1.2.x (versión 1.2.64 y anteriores). Una corrección fue emitida para la rama 2.0.x del software afectado

*Credits: This issue was discovered and reported to Rapid7 by Joe Testa via the Metasploit Framework.

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

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

2020-01-21 CVE Reserved
2020-06-15 CVE Published
2022-01-11 First Exploit
2024-09-16 CVE Updated
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-264: Permissions, Privileges, and Access Controls
CWE-798: Use of Hard-coded Credentials

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC
https://github.com/szerszen199/PS-CVE-2020-7352	2022-01-11
https://www.positronsecurity.com/blog/2020-04-28-gog-galaxy-client-local-privilege-escalation	2024-09-16

URL	Date	SRC
https://github.com/rapid7/metasploit-framework/pull/13444	2022-08-05

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gog Search vendor "Gog"		Galaxy Search vendor "Gog" for product "Galaxy"				>= 1.2.0 <= 1.2.64 Search vendor "Gog" for product "Galaxy" and version " >= 1.2.0 <= 1.2.64"		windows		Affected
Gog Search vendor "Gog"		Galaxy Search vendor "Gog" for product "Galaxy"				>= 2.0.0 <= 2.0.12 Search vendor "Gog" for product "Galaxy" and version " >= 2.0.0 <= 2.0.12"		windows		Affected