CVE-2019-2657

Oracle VirtualBox CRClientPointer Use-After-Free Privilege Escalation Vulnerability

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Vulnerability in the Oracle VM VirtualBox component of Oracle Virtualization (subcomponent: Core). Supported versions that are affected are Prior to 5.2.28 and prior to 6.0.6. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. Successful attacks of this vulnerability can result in takeover of Oracle VM VirtualBox. CVSS 3.0 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

Vulnerabilidad en el componente Oracle VM VirtualBox de Oracle Virtualization (subcomponente: Core). Las versiones compatibles que se ven afectadas son anteriores a 5.2.28 y anteriores a 6.0.6. Vulnerabilidad de fácil explotación que permite a un atacante poco privilegiado inicie sesión en la infraestructura donde se ejecuta Oracle VM VirtualBox para comprometer a Oracle VM VirtualBox. Los ataques con éxito de esta vulnerabilidad pueden resultar en la toma de control de Oracle VM VirtualBox. CVSS versión 3.0 Puntuación Base 7.8 (Impactos de confidencialidad, integridad y disponibilidad). Vector CVSS: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Oracle VirtualBox. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability.
The specific flaw exists within the handling of the CRClientPointer pointer. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor.

*Credits: Jason Matthyser (pleasew8t) of MWR Labs

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

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-12-14 CVE Reserved
2019-04-17 CVE Published
2024-02-27 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
http://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html	2020-08-24

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.html	2020-08-24

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oracle Search vendor "Oracle"		Vm Virtualbox Search vendor "Oracle" for product "Vm Virtualbox"				< 5.2.28 Search vendor "Oracle" for product "Vm Virtualbox" and version " < 5.2.28"		-		Affected
Oracle Search vendor "Oracle"		Vm Virtualbox Search vendor "Oracle" for product "Vm Virtualbox"				>= 6.0.0 < 6.0.6 Search vendor "Oracle" for product "Vm Virtualbox" and version " >= 6.0.0 < 6.0.6"		-		Affected