CVE-2020-14859

Oracle WebLogic Server T3 Protocol Deserialization of Untrusted Data Remote Code Execution Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Vulnerabilidad en el producto Oracle WebLogic Server de Oracle Fusion Middleware (componente: Core). Las versiones compatibles que están afectadas son 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 y 14.1.1.0.0. Una vulnerabilidad explotable fácilmente permite a un atacante no autenticado con acceso a la red por medio de IIOP, T3 comprometer a Oracle WebLogic Server. Los ataques con éxito de esta vulnerabilidad pueden resultar en la toma de control de Oracle WebLogic Server. CVSS 3.1 Puntuación Base 9.8 (Impactos de la Confidencialidad, Integridad y Disponibilidad). Vector CVSS: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Oracle WebLogic. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of the T3 protocol. Crafted data in a T3 protocol message can trigger the deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account.

*Credits: LE XUAN TUYEN - VNPT ISC

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:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2020-06-19 CVE Reserved
2020-10-21 CVE Published
2024-09-26 CVE Updated
2024-10-28 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (2)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-20-1275	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuoct2020.html	2020-10-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oracle Search vendor "Oracle"		Weblogic Server Search vendor "Oracle" for product "Weblogic Server"				10.3.6.0.0 Search vendor "Oracle" for product "Weblogic Server" and version "10.3.6.0.0"		-		Affected
Oracle Search vendor "Oracle"		Weblogic Server Search vendor "Oracle" for product "Weblogic Server"				12.1.3.0.0 Search vendor "Oracle" for product "Weblogic Server" and version "12.1.3.0.0"		-		Affected
Oracle Search vendor "Oracle"		Weblogic Server Search vendor "Oracle" for product "Weblogic Server"				12.2.1.3.0 Search vendor "Oracle" for product "Weblogic Server" and version "12.2.1.3.0"		-		Affected
Oracle Search vendor "Oracle"		Weblogic Server Search vendor "Oracle" for product "Weblogic Server"				12.2.1.4.0 Search vendor "Oracle" for product "Weblogic Server" and version "12.2.1.4.0"		-		Affected
Oracle Search vendor "Oracle"		Weblogic Server Search vendor "Oracle" for product "Weblogic Server"				14.1.1.0.0 Search vendor "Oracle" for product "Weblogic Server" and version "14.1.1.0.0"		-		Affected