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CVE-2022-23305

SQL injection in JDBC Appender in Apache Log4j V1

Published: Jan 18, 2022Updated: May 27, 2026 Sources: CVE List NVD GHSA BDUCWE-89
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
67.5%
Top 0.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

By design, the JDBCAppender in Log4j 1.2.x accepts an SQL statement as a configuration parameter where the values to be inserted are converters from PatternLayout. The message converter, %m, is likely to always be included. This allows attackers to manipulate the SQL by entering crafted strings into input fields or headers of an application that are logged allowing unintended SQL queries to be executed. Note this issue only affects Log4j 1.x when specifically configured to use the JDBCAppender, which is not the default. Beginning in version 2.0-beta8, the JDBCAppender was re-introduced with proper support for parameterized SQL queries and further customization over the columns written to in logs. Apache Log4j 1.2 reached end of life in August 2015. Users should upgrade to Log4j 2 as it addresses numerous other issues from the previous versions.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-89

Affected Products

log4japache
LibraryLibrary
OSS Libraries / generic-library
snapmanagernetappHardware Firmware
brocade sannavbroadcomNetworking Infrastructure / network-management
reload4jqos
Library
OSS Libraries / generic-library
advanced supply chain planningoracle
On-prem
Databases / relational
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd
netappcommercialUSHardware Firmware
broadcomcommercialUSCloud & SaaSaka broadcom inc
qososs-projectOSS Librariesaka reload4j, logback, slf4j
oraclecommercialUSDatabasesaka oracle corp.
and 60 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

http://www.openwall.com/lists/oss-security/2022/01/18/4
openwall.com
https://lists.apache.org/thread/pt6lh3pbsvxqlwlp4c5l798dv2hkc85y
lists.apache.org
https://logging.apache.org/log4j/1.2/index.html
logging.apache.org
and 12 more references View all →

Timeline

Published
Jan 18, 2022
Last Updated
May 27, 2026

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