CVE-2017-7471

Severity Score

9.0

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 File System (9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host.

Quick Emulator (Qemu) interado con VirtFS, compartición de directorios host mediante el soporte 9pfs (Plan 9 File System), es vulnerable a un control de acceso incorrecto. Podría ocurrir cuando se acceden a archivos en un directorio host compartido. Un usuario privilegiado dentro del guest podría utilizar este fallo para acceder al sistema de archivos del host más allá de la carpeta compartida y podría escalar sus privilegios en un host.

*Credits: N/A

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-04-05 CVE Reserved
2017-06-06 CVE Published
2023-07-03 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-732: Incorrect Permission Assignment for Critical Resource

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/97970	Third Party Advisory
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060e	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2017/04/19/2	2023-02-12
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471	2023-02-12

URL	Date	SRC
https://security.gentoo.org/glsa/201706-03	2023-02-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				<= 2.8.1.1 Search vendor "Qemu" for product "Qemu" and version " <= 2.8.1.1"		-		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.9.0 Search vendor "Qemu" for product "Qemu" and version "2.9.0"		rc0		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.9.0 Search vendor "Qemu" for product "Qemu" and version "2.9.0"		rc1		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.9.0 Search vendor "Qemu" for product "Qemu" and version "2.9.0"		rc2		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.9.0 Search vendor "Qemu" for product "Qemu" and version "2.9.0"		rc3		Affected
Qemu Search vendor "Qemu"		Qemu Search vendor "Qemu" for product "Qemu"				2.9.0 Search vendor "Qemu" for product "Qemu" and version "2.9.0"		rc4		Affected