CVE-2021-2471

mysql-connector-java: unauthorized access to critical

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 8.0.26 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors. CVSS 3.1 Base Score 5.9 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H).

Una vulnerabilidad en el producto MySQL Connectors de Oracle MySQL (componente: Connector/J). Las versiones compatibles que están afectadas son 8.0.26 y anteriores. Una vulnerabilidad difícil de explotar permite a un atacante muy privilegiado con acceso a la red por medio de múltiples protocolos comprometer a MySQL Connectors. Los ataques con éxito de esta vulnerabilidad pueden resultar en un acceso no autorizado a datos críticos o en el acceso completo a todos los datos accesibles de los Conectores MySQL y en la habilidad no autorizada de causar una suspensión o bloqueo repetible frecuentemente (DOS completa) de MySQL Connectors. CVSS 3.1 Puntuación Base 5.9 (impactos en la Confidencialidad y la Disponibilidad). Vector CVSS: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H)

MySQL Connector/J has no security check when external general entities are included in XML sources, consequently, there exists an XML External Entity(XXE) vulnerability. A successful attack can access critical data and gain full control/access to all MySQL Connectors' accessible data without any authorization.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Complete

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-09 CVE Reserved
2021-10-20 CVE Published
2021-10-22 First Exploit
2023-05-13 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-863: Incorrect Authorization

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC
https://github.com/cckuailong/CVE-2021-2471	2021-10-23
https://github.com/DrunkenShells/CVE-2021-2471	2021-10-22

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuapr2022.html	2022-04-28
https://www.oracle.com/security-alerts/cpuoct2021.html	2022-04-28
https://access.redhat.com/security/cve/CVE-2021-2471	2022-09-09
https://bugzilla.redhat.com/show_bug.cgi?id=2020583	2022-09-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oracle Search vendor "Oracle"		Communications Cloud Native Core Console Search vendor "Oracle" for product "Communications Cloud Native Core Console"				1.9.0 Search vendor "Oracle" for product "Communications Cloud Native Core Console" and version "1.9.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Cloud Native Core Network Slice Selection Function Search vendor "Oracle" for product "Communications Cloud Native Core Network Slice Selection Function"				1.8.0 Search vendor "Oracle" for product "Communications Cloud Native Core Network Slice Selection Function" and version "1.8.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Cloud Native Core Policy Search vendor "Oracle" for product "Communications Cloud Native Core Policy"				1.15.0 Search vendor "Oracle" for product "Communications Cloud Native Core Policy" and version "1.15.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Cloud Native Core Security Edge Protection Proxy Search vendor "Oracle" for product "Communications Cloud Native Core Security Edge Protection Proxy"				1.7.0 Search vendor "Oracle" for product "Communications Cloud Native Core Security Edge Protection Proxy" and version "1.7.0"		-		Affected
Oracle Search vendor "Oracle"		Mysql Connectors Search vendor "Oracle" for product "Mysql Connectors"				>= 8.0.0 <= 8.0.26 Search vendor "Oracle" for product "Mysql Connectors" and version " >= 8.0.0 <= 8.0.26"		-		Affected
Quarkus Search vendor "Quarkus"		Quarkus Search vendor "Quarkus" for product "Quarkus"				< 2.2.4 Search vendor "Quarkus" for product "Quarkus" and version " < 2.2.4"		-		Affected
Quarkus Search vendor "Quarkus"		Quarkus Search vendor "Quarkus" for product "Quarkus"				>= 2.3.0 < 2.6.0 Search vendor "Quarkus" for product "Quarkus" and version " >= 2.3.0 < 2.6.0"		-		Affected