CVE-2022-23305
SQL injection in JDBC Appender in Apache Log4j V1
- State
- Published
- Severity
- 9.8 Critical
- Published
- Jan 18, 2022
- Updated
- May 27, 2026
- Reserved
- Jan 17, 2022
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Products
| Product | Versions |
|---|---|
Apache Log4j 1.xApache Software Foundation |
|
References
- https://logging.apache.org/log4j/1.2/index.html
- https://lists.apache.org/thread/pt6lh3pbsvxqlwlp4c5l798dv2hkc85y
- [oss-security] 20220118 CVE-2022-23305: SQL injection in JDBC Appender in Apache Log4j V1mailing-list
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://security.netapp.com/advisory/ntap-20220217-0007/
- https://www.oracle.com/security-alerts/cpujul2022.html
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