GHSA-8489-44mv-ggj8
MODERATE
Improper Input Validation and Injection in Apache Log4j2
Published January 4, 2022Updated May 9, 2025Source: osv
Details
Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to an attack where an attacker with permission to modify the logging configuration file can construct a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI which can execute remote code. This issue is fixed by limiting JNDI data source names to the java protocol in Log4j2 versions 2.17.1, 2.12.4, and 2.3.2.
# Affected packages
Only the `org.apache.logging.log4j:log4j-core` package is directly affected by this vulnerability. The `org.apache.logging.log4j:log4j-api` should be kept at the same version as the `org.apache.logging.log4j:log4j-core` package to ensure compatability if in use.
This issue does not impact default configurations of Log4j2 and requires an attacker to have control over the Log4j2 configuration, which reduces the likelihood of being exploited.
Remediation
Upgrade to the fixed version using your package manager.
Maven
Update org.ops4j.pax.logging:pax-logging-log4j2 to 1.10.9 or later<!-- Update pom.xml dependency version to 1.10.9 for org.ops4j.pax.logging:pax-logging-log4j2 -->
Maven
Update org.ops4j.pax.logging:pax-logging-log4j2 to 1.9.2 or later<!-- Update pom.xml dependency version to 1.9.2 for org.ops4j.pax.logging:pax-logging-log4j2 -->
Maven
Update org.ops4j.pax.logging:pax-logging-log4j2 to 1.11.13 or later<!-- Update pom.xml dependency version to 1.11.13 for org.ops4j.pax.logging:pax-logging-log4j2 -->
Maven
Update org.ops4j.pax.logging:pax-logging-log4j2 to 2.0.14 or later<!-- Update pom.xml dependency version to 2.0.14 for org.ops4j.pax.logging:pax-logging-log4j2 -->
Maven
Update org.apache.logging.log4j:log4j-core to 2.17.1 or later<!-- Update pom.xml dependency version to 2.17.1 for org.apache.logging.log4j:log4j-core -->
Maven
Update org.apache.logging.log4j:log4j-core to 2.12.4 or later<!-- Update pom.xml dependency version to 2.12.4 for org.apache.logging.log4j:log4j-core -->
Maven
Update org.apache.logging.log4j:log4j-core to 2.3.2 or later<!-- Update pom.xml dependency version to 2.3.2 for org.apache.logging.log4j:log4j-core -->
After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.
Affected Packages (7)
| Package | Ecosystem | Affected | Fixed In |
|---|---|---|---|
| org.ops4j.pax.logging:pax-logging-log4j2 | Maven | 1.10.0, 1.10.1, 1.10.2, 1.10.3 (+5 more) | 1.10.9 |
| org.ops4j.pax.logging:pax-logging-log4j2 | Maven | 1.8.0, 1.8.1, 1.8.2, 1.8.3 (+6 more) | 1.9.2 |
| org.ops4j.pax.logging:pax-logging-log4j2 | Maven | 1.11.0, 1.11.1, 1.11.10, 1.11.11 (+9 more) | 1.11.13 |
| org.ops4j.pax.logging:pax-logging-log4j2 | Maven | 2.0.0, 2.0.1, 2.0.10, 2.0.11 (+10 more) | 2.0.14 |
| org.apache.logging.log4j:log4j-core | Maven | 2.13.0, 2.13.1, 2.13.2, 2.13.3 (+5 more) | 2.17.1 |
| org.apache.logging.log4j:log4j-core | Maven | 2.10.0, 2.11.0, 2.11.1, 2.11.2 (+16 more) | 2.12.4 |
| org.apache.logging.log4j:log4j-core | Maven | 2.0, 2.0-beta7, 2.0-beta8, 2.0-beta9 (+8 more) | 2.3.2 |
Vulnerability Classification
Common Weakness Enumeration (CWE) identifiers for this vulnerability type.
- CWE-20Improper Input ValidationMITRE
- CWE-74
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 3.1 score means for each attack dimension.
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-44832ADVISORY
- https://cert-portal.siemens.com/productcert/pdf/ssa-784507.pdfWEB
- https://github.com/apache/logging-log4j2PACKAGE
- https://issues.apache.org/jira/browse/LOG4J2-3293WEB
- https://lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143WEB
- https://lists.debian.org/debian-lts-announce/2021/12/msg00036.htmlWEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EVV25FXL4FU5X6X5BSL7RLQ7T6F65MRAWEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T57MPJUW3MA6QGWZRTMCHHMMPQNVKGFCWEB
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbdWEB
- https://security.netapp.com/advisory/ntap-20220104-0001WEB
- https://www.oracle.com/security-alerts/cpuapr2022.htmlWEB
- https://www.oracle.com/security-alerts/cpujan2022.htmlWEB
- https://www.oracle.com/security-alerts/cpujul2022.htmlWEB
- http://www.openwall.com/lists/oss-security/2021/12/28/1WEB
Risk Assessment
CVSS Score
3.1
Exploitation is difficult or impact is minor. Address in your next planned update.
EPSS Score (30-day exploit probability)
53.59%
Higher than 98% of vulnerabilities
Also Known As
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