9.1
CRITICAL
CVE-2021-23463
H2 Database XML External Entity (XXE) Injection Vulnerability
Description

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.

INFO

Published Date :

Dec. 10, 2021, 8:15 p.m.

Last Modified :

Aug. 18, 2023, 2:15 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.2

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-23463 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-23463 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 H2database h2
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-23463.

URL Resource
https://github.com/h2database/h2database/commit/d83285fd2e48fb075780ee95badee6f5a15ea7f8%23diff-008c2e4462609982199cd83e7cf6f1d6b41296b516783f6752c44b9f15dc7bc3 Broken Link
https://github.com/h2database/h2database/issues/3195 Exploit Issue Tracking Patch Third Party Advisory
https://github.com/h2database/h2database/pull/3199 Issue Tracking Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20230818-0010/
https://snyk.io/vuln/SNYK-JAVA-COMH2DATABASE-1769238 Exploit Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html Not Applicable

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Java CVE Vulnerability Environment

cve java dubbo apache spring

Java HTML PLpgSQL Python JavaScript CSS Shell Dockerfile

Updated: 3 months, 1 week ago
20 stars 6 fork 6 watcher
Born at : Oct. 16, 2022, 3:20 p.m. This repo has been linked 31 different CVEs too.

None

Java Shell

Updated: 2 years, 8 months ago
0 stars 0 fork 0 watcher
Born at : March 8, 2022, 11:16 a.m. This repo has been linked 25 different CVEs too.

h2-jdbc(https://github.com/h2database/h2database/issues/3195) & mysql-jdbc(CVE-2021-2471) SQLXML XXE vulnerability reproduction.

Java

Updated: 3 months, 1 week ago
52 stars 4 fork 4 watcher
Born at : Oct. 22, 2021, 7:14 a.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-23463 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-23463 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Aug. 18, 2023

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20230818-0010/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 28, 2022

    Action Type Old Value New Value
    Changed Reference Type https://www.oracle.com/security-alerts/cpuapr2022.html No Types Assigned https://www.oracle.com/security-alerts/cpuapr2022.html Not Applicable
  • CVE Modified by [email protected]

    Apr. 20, 2022

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpuapr2022.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 12, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:h2database:h2:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.202 OR *cpe:2.3:a:h2database:h2:*:*:*:*:*:*:*:* versions from (including) 1.4.198 up to (excluding) 2.0.202
  • CVE Modified by [email protected]

    Jan. 03, 2022

    Action Type Old Value New Value
    Changed Description The package com.h2database:h2 from 0 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. 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.
  • Initial Analysis by [email protected]

    Dec. 14, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
    Changed Reference Type https://github.com/h2database/h2database/commit/d83285fd2e48fb075780ee95badee6f5a15ea7f8%23diff-008c2e4462609982199cd83e7cf6f1d6b41296b516783f6752c44b9f15dc7bc3 No Types Assigned https://github.com/h2database/h2database/commit/d83285fd2e48fb075780ee95badee6f5a15ea7f8%23diff-008c2e4462609982199cd83e7cf6f1d6b41296b516783f6752c44b9f15dc7bc3 Broken Link
    Changed Reference Type https://github.com/h2database/h2database/issues/3195 No Types Assigned https://github.com/h2database/h2database/issues/3195 Exploit, Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://github.com/h2database/h2database/pull/3199 No Types Assigned https://github.com/h2database/h2database/pull/3199 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://snyk.io/vuln/SNYK-JAVA-COMH2DATABASE-1769238 No Types Assigned https://snyk.io/vuln/SNYK-JAVA-COMH2DATABASE-1769238 Exploit, Patch, Third Party Advisory
    Added CWE NIST CWE-611
    Added CPE Configuration OR *cpe:2.3:a:h2database:h2:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.202
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-23463 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-23463 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.04 }} 0.30%

score

0.84231

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
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