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GHSA-mf4f-j588-5xm8
No affected components available
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.
Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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