Gary Gregory created LOG4J2-1110:
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             Summary: org.apache.logging.log4j.jul.CoreLogger.setLevel() checks 
for security permission too late
                 Key: LOG4J2-1110
                 URL: https://issues.apache.org/jira/browse/LOG4J2-1110
             Project: Log4j 2
          Issue Type: Bug
          Components: JUL adapter
    Affects Versions: 2.3
            Reporter: Gary Gregory


org.apache.logging.log4j.jul.CoreLogger.setLevel() checks for security 
permission too late.

The JUL Javadocs 
https://docs.oracle.com/javase/7/docs/api/java/util/logging/Logger.html#setLevel(java.util.logging.Level)
 state:

{quote}
Throws:
SecurityException - if a security manager exists and if the caller does not 
have LoggingPermission("control").
{quote}

Our impl {{org.apache.logging.log4j.jul.CoreLogger.setLevel(Level)}}:
{code:java}
    @Override
    public void setLevel(final Level level) throws SecurityException {
        logger.setLevel(LevelTranslator.toLevel(level));
        super.doSetLevel(level);
    }
{code}

Checks for perms through {{super.doSetLevel(level)}} which is too late since 
our logger is already modified.

The fix is to switch the two calls:

{code:java}
    @Override
    public void setLevel(final Level level) throws SecurityException {
        super.doSetLevel(level);
        logger.setLevel(LevelTranslator.toLevel(level));
    }
{code}





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