CVE-2021-2173

Oracle DB Broken PDB Isolation / Metadata Exposure

Severity Score

4.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Vulnerability in the Recovery component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1, 18c and 19c. Easily exploitable vulnerability allows high privileged attacker having DBA Level Account privilege with network access via Oracle Net to compromise Recovery. While the vulnerability is in Recovery, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Recovery accessible data. CVSS 3.1 Base Score 4.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N).

Una vulnerabilidad en el componente Recovery de Oracle Database Server. Las versiones compatibles que están afectadas son 12.1.0.2, 12.2.0.1, 18c y 19c. La vulnerabilidad fácilmente explotable permite a un atacante muy privilegiado que tenga privilegios DBA Level Account con acceso a la red por medio de Oracle Net comprometer a Recovery. Aunque la vulnerabilidad está en Recovery, los ataques pueden afectar significativamente a productos adicionales. Los ataques con éxito de esta vulnerabilidad pueden resultar en el acceso de lectura no autorizado a un subconjunto de datos accesibles de Recovery. CVSS 3.1 Puntuación Base 4.1 (Impactos en la Confidencialidad). Vector CVSS: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N)

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2020-12-09 CVE Reserved
2021-04-22 CVE Published
2023-07-08 EPSS Updated
2024-09-26 CVE Updated
2024-09-26 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (3)

URL	Tag	Source
http://packetstormsecurity.com/files/171344/Oracle-DB-Broken-PDB-Isolation-Metadata-Exposure.html

URL	Date	SRC
https://github.com/emad-almousa/CVE-2021-2173	2024-09-26

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuapr2021.html	2023-03-15

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oracle Search vendor "Oracle"		Database Server Search vendor "Oracle" for product "Database Server"				12.1.0.2 Search vendor "Oracle" for product "Database Server" and version "12.1.0.2"		-		Affected
Oracle Search vendor "Oracle"		Database Server Search vendor "Oracle" for product "Database Server"				12.2.0.1 Search vendor "Oracle" for product "Database Server" and version "12.2.0.1"		-		Affected
Oracle Search vendor "Oracle"		Database Server Search vendor "Oracle" for product "Database Server"				18c Search vendor "Oracle" for product "Database Server" and version "18c"		-		Affected
Oracle Search vendor "Oracle"		Database Server Search vendor "Oracle" for product "Database Server"				19c Search vendor "Oracle" for product "Database Server" and version "19c"		-		Affected