Improper Input Validation and Injection in Apache Log4j2
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.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.logging.log4j:log4j-core | >= 2.0-beta7, < 2.3.2, >= 2.4, < 2.12.4, >= 2.13.0, < 2.17.1 | 2.3.2, 2.12.4, 2.17.1 |
| Java / Kotlin (Maven) | org.ops4j.pax.logging:pax-logging-log4j2 | >= 1.8.0, < 1.9.2, >= 1.10.0, < 1.10.9, >= 1.11.0, < 1.11.13, >= 2.0.0, < 2.0.14 | 1.9.2, 1.10.9, 1.11.13, 2.0.14 |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2021-44832
- https://cert-portal.siemens.com/productcert/pdf/ssa-784507.pdf
- https://github.com/apache/logging-log4j2
- https://issues.apache.org/jira/browse/LOG4J2-3293
- https://lists.apache.org/thread/s1o5vlo78ypqxnzn6p8zf6t9shtq5143
- https://lists.debian.org/debian-lts-announce/2021/12/msg00036.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EVV25FXL4FU5X6X5BSL7RLQ7T6F65MRA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T57MPJUW3MA6QGWZRTMCHHMMPQNVKGFC
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EVV25FXL4FU5X6X5BSL7RLQ7T6F65MRA
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T57MPJUW3MA6QGWZRTMCHHMMPQNVKGFC
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd
- https://security.netapp.com/advisory/ntap-20220104-0001
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- http://www.openwall.com/lists/oss-security/2021/12/28/1
- Vector CVSS
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H- Debilidad (CWE)
CWE-20, CWE-74- Plataforma
- Java / Kotlin (Maven)
- Paquete
org.apache.logging.log4j:log4j-core, org.ops4j.pax.logging:pax-logging-log4j2- Publicada
- 04.01.2022
- Actualizado
- 11.10.2026 12:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-8489-44mv-ggj8 - CC BY 4.0
Historial de vulnerabilidades: org.apache.logging.log4j:log4j-core
Todas las vulnerabilidades publicadas de este paquete (Java / Kotlin (Maven)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 11
- Primera → última
- 01.2020 04.2026
- Sin corrección
- 0
- Explotada en ataques
- 2
Distribución por gravedad
- Crítica 3
- Alta 2
- Media 5
- Baja 1
Divulgaciones por año
- 2020: 2
- 2021: 3
- 2022: 1
- 2023: 1
- 2024: 0
- 2025: 1
- 2026: 3
-
Improper Input Validation and Injection in Apache Log4j2 esta entrada
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