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Posted to hdfs-dev@hadoop.apache.org by "Lokesh Jain (JIRA)" <ji...@apache.org> on 2018/01/19 18:26:00 UTC
[jira] [Created] (HDFS-13038) User with no permission on file is
able to run getfacl for that file
Lokesh Jain created HDFS-13038:
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Summary: User with no permission on file is able to run getfacl for that file
Key: HDFS-13038
URL: https://issues.apache.org/jira/browse/HDFS-13038
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Lokesh Jain
Assignee: Lokesh Jain
Currently any user with EXECUTE permission can run getfacl on a file or directory. This Jira adds a check for READ access of user on the inode path.
{code:java}
[root@host ~]$ hdfs dfs -copyFromLocal /etc/a.txt /tmp
[root@host ~]$ hdfs dfs -setfacl -m user:abc:--- /tmp/a.txt
{code}
Since user abc does not have read permission on the file 'cat' command throws Permission Denied error but getfacl executes normally.
{code:java}
[abc@host ~]$ hdfs dfs -cat /tmp/a.txt
cat: Permission denied: user=abc, access=READ, inode="/tmp/a.txt":abc:hdfs:-rw-r--r--
[abc@host ~]$ hdfs dfs -getfacl /tmp/a.txt
# file: /tmp/a.txt
# owner:root
# group: hdfs
user::rw-
user:abc:---
group::r--
mask::r--
other::r--
{code}
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