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This commit is contained in:
Petr Mrázek 2021-12-10 18:07:31 +01:00
parent 970c9d0093
commit 9374699870
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27
site/content/posts/log4j-remote-execution.md
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@ -58,3 +58,30 @@ While the defaults are safe, there are some things you can do to ensure this is
5. **Check the logs during start to be absolutely sure.**
When starting up an instance, the log4j library versions should be either `2.15.0` or `2.0-beta9-fixed`. Others may not be safe.
Good example:
```
Libraries:
...
/MultiMC/libraries/org/apache/logging/log4j/log4j-api/2.15.0/log4j-api-2.15.0.jar
/MultiMC/libraries/org/apache/logging/log4j/log4j-core/2.15.0/log4j-core-2.15.0.jar
...
```
Good example:
```
Libraries:
...
/MultiMC/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9-fixed/log4j-api-2.0-beta9-fixed.jar
/MultiMC/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9-fixed/log4j-core-2.0-beta9-fixed.jar
...
```
**BAD** example:
```
Libraries:
...
/MultiMC/libraries/org/apache/logging/log4j/log4j-api/2.14.1/log4j-api-2.14.1.jar
/MultiMC/libraries/org/apache/logging/log4j/log4j-core/2.14.1/log4j-core-2.14.1.jar
...
```