CVE-2021-23463

XML External Entity (XXE) Injection

Severity Score

9.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The package com.h2database:h2 from 1.4.198 and before 2.0.202 are vulnerable to XML External Entity (XXE) Injection via the org.h2.jdbc.JdbcSQLXML class object, when it receives parsed string data from org.h2.jdbc.JdbcResultSet.getSQLXML() method. If it executes the getSource() method when the parameter is DOMSource.class it will trigger the vulnerability.

El paquete com.h2database:h2 a partir de la versión 1.4.198 y antes de la versión 2.0.202 son vulnerables a la Inyección de Entidades Externas XML (XXE) a través del objeto de clase org.h2.jdbc.JdbcSQLXML, cuando recibe datos de cadena analizados del método org.h2.jdbc.JdbcResultSet.getSQLXML(). Si ejecuta el método getSource() cuando el parámetro es DOMSource.class activará la vulnerabilidad

*Credits: threedr3am of SecCoder Security Lab

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-08 CVE Reserved
2021-12-10 CVE Published
2024-09-08 EPSS Updated
2024-09-17 CVE Updated
2024-09-17 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-611: Improper Restriction of XML External Entity Reference

CAPEC

References (6)

URL	Tag	Source
https://github.com/h2database/h2database/commit/d83285fd2e48fb075780ee95badee6f5a15ea7f8%23diff-008c2e4462609982199cd83e7cf6f1d6b41296b516783f6752c44b9f15dc7bc3	Broken Link
https://security.netapp.com/advisory/ntap-20230818-0010
https://www.oracle.com/security-alerts/cpuapr2022.html	Not Applicable

URL	Date	SRC
https://github.com/h2database/h2database/issues/3195	2024-09-17
https://snyk.io/vuln/SNYK-JAVA-COMH2DATABASE-1769238	2024-09-17

URL	Date	SRC
https://github.com/h2database/h2database/pull/3199	2023-08-18

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
H2database Search vendor "H2database"		H2 Search vendor "H2database" for product "H2"				>= 1.4.198 < 2.0.202 Search vendor "H2database" for product "H2" and version " >= 1.4.198 < 2.0.202"		-		Affected