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Posted to common-dev@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2010/08/04 02:52:17 UTC

[jira] Created: (HADOOP-6898) FileSystem.copyToLocal creates files with 777 permissions

FileSystem.copyToLocal creates files with 777 permissions
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                 Key: HADOOP-6898
                 URL: https://issues.apache.org/jira/browse/HADOOP-6898
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs, security
            Reporter: Todd Lipcon
            Priority: Critical
             Fix For: 0.22.0


FileSystem.copyToLocal ends up calling through to FileUtil.copy, which calls create() on the target file system without passing any permission object. Therefore, the file ends up getting created locally with 777 permissions, which is dangerous -- even if the caller then fixes up permissions afterwards, it exposes a window in which an attacker can open the file.

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