CVE-2017-17877

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Valve Steam Link build 643. When the SSH daemon is enabled for local development, the device is publicly available via IPv6 TCP port 22 over the internet (with stateless address autoconfiguration) by default, which makes it easier for remote attackers to obtain access by guessing 24 bits of the MAC address and attempting a root login. This can be exploited in conjunction with CVE-2017-17878.

Se ha descubierto un problema en la build 643 de Valve Steam Link. Cuando el demonio SSH está activado para desarrollo local, el dispositivo está disponible públicamente mediante el puerto 22 de TCP IPv6 en internet (con una autoconfiguración de dirección sin estado) por defecto. Esto facilita a los atacantes remotos obtener acceso adivinando 24 bits de la dirección MAC e intentando iniciar sesión como root. Esto se puede explotar junto con CVE-2017-17878.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

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

2017-12-23 CVE Reserved
2017-12-24 CVE Published
2024-09-16 CVE Updated
2024-09-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (3)

URL	Tag	Source
https://blogger.davidmanouchehri.com/2017/12/steam-link-security-remotely-insecure.html	Issue Tracking
https://github.com/ValveSoftware/steamlink-sdk#ssh-access	Issue Tracking
https://github.com/ValveSoftware/steamlink-sdk/issues/119	Issue Tracking

URL	Date	SRC

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
Valvesoftware Search vendor "Valvesoftware"	Steam Link Firmware Search vendor "Valvesoftware" for product "Steam Link Firmware"	< 644 Search vendor "Valvesoftware" for product "Steam Link Firmware" and version " < 644"	-	Affected	in	Valvesoftware Search vendor "Valvesoftware"	Steam Link Search vendor "Valvesoftware" for product "Steam Link"	-	-	Safe