Apache Log4j Remote Code Execution
Impact
Opencast uses an Apache Log4j2 version which, combined with older JDK versions, can be used for remote code execution attacks which have been found to be actively exploited.
Apache Log4j2 <=2.14.1 JNDI features is not sufficiently protected. An attacker who can control log messages or log message parameters can execute arbitrary code when message lookup substitution is enabled.
Who is affected
- Opencast before 9.10 or 10.6 are affected
- Log4j version: all 2.x versions before 2.15.0 are affected
Patches
The issue has been fixed in Opencast 9.10 and 10.6.
Workarounds
The vulnerability can be mitigated by setting system property log4j2.formatMsgNoLookups to true.
References
- Opencast pull request mitigating the vulnerability
- CVE-2021-44228 Detail
- Analysis and Remediation Guidance to the Log4j Zero-Day RCE (CVE-2021-44228) Vulnerability
- VE-2021-44228 – Log4j 2 Vulnerability Analysis
For more information
If you have any questions or comments about this advisory:
- Open an issue in our issue tracker
- Email us at security@opencast.org
Note about dependencies
This issue affects many Java applications. Please also verify these are not vulnerable.
Software afectado
Haz clic en una tecnología para ver todas sus vulnerabilidades.
| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Java / Kotlin (Maven) | org.opencastproject:opencast-common | < 9.10, >= 10.0, < 10.6 | 9.10, 10.6 |
Referencias
- https://github.com/opencast/opencast/security/advisories/GHSA-mf4f-j588-5xm8
- https://nvd.nist.gov/vuln/detail/CVE-2021-44228
- https://github.com/opencast/opencast/pull/3253
- https://docs.opencast.org/r/10.x/admin/#changelog/#opencast-106
- https://docs.opencast.org/r/9.x/admin/#changelog/#opencast-910
- https://github.com/opencast/opencast
- Debilidad (CWE)
-- Plataforma
- Java / Kotlin (Maven)
- Paquete
org.opencastproject:opencast-common- Publicada
- 14.12.2021
- Actualizado
- 11.10.2026 12:21
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-mf4f-j588-5xm8 - CC BY 4.0
Historial de vulnerabilidades: org.opencastproject:opencast-common
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
- 6
- Primera → última
- 12.2021 10.2025
- Sin corrección
- 1
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 1
- Alta 2
- Media 3
Divulgaciones por año
- 2021: 3
- 2022: 1
- 2023: 0
- 2024: 0
- 2025: 2
- 2026: 0
Identifica las vulnerabilidades de tu aplicación
Con la integración de DockRay y el inventario de software activado, DockRay compara las versiones notificadas de los componentes con las vulnerabilidades conocidas y avisa de las coincidencias confirmadas. La cobertura depende de la tecnología compatible y de los avisos disponibles.