CVE-2021-2456

Oracle Business Intelligence BIRemotingServlet 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 Business Intelligence Enterprise Edition product of Oracle Fusion Middleware (component: Analytics Web General). The supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Business Intelligence Enterprise Edition. Successful attacks of this vulnerability can result in takeover of Oracle Business Intelligence Enterprise Edition. 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).

Una vulnerabilidad en el producto Oracle Business Intelligence Enterprise Edition de Oracle Fusion Middleware (componente: Analytics Web General). La versión compatible que está afectada es 12.2.1.4.0. Una vulnerabilidad explotable fácilmente, permite a un atacante no autenticado con acceso a la red por medio de HTTP comprometer Oracle Business Intelligence Enterprise Edition. Los ataques con éxito de esta vulnerabilidad pueden resultar en la toma de control de Oracle Business Intelligence Enterprise Edition. CVSS 3.1 Puntuación Base 9.8 (Impactos en 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 Business Intelligence. Authentication is not required to exploit this vulnerability.
The specific flaw exists within BIRemotingServlet. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of Administrator.

*Credits: peterjson of RedTeam@VNG Corporation

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

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2020-12-09 CVE Reserved
2021-07-20 CVE Published
2022-05-23 First Exploit
2024-04-04 EPSS Updated
2024-09-25 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (3)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-21-885	Third Party Advisory

URL	Date	SRC
https://github.com/peterjson31337/CVE-2021-2456	2022-05-23

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpujul2021.html	2021-07-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oracle Search vendor "Oracle"		Business Intelligence Search vendor "Oracle" for product "Business Intelligence"				12.2.1.4.0 Search vendor "Oracle" for product "Business Intelligence" and version "12.2.1.4.0"		enterprise		Affected