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Description of problem:
Please backport https://github.com/ClusterLabs/pcs/issues/124 (patch https://github.com/ClusterLabs/pcs/commit/03f17f86f68675b8d20da664e66617ce3e614de4?diff=split)

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Add a directory (With world writable permisson, like 666) to PATH.
2. # pcs cluster auth pcmk1 pcmk2 --debug
3.

Actual results:

Error: Unable to communicate with pcsd


Expected results:

pcmk1: Already authorized
pcmk2: Already authorized


Additional info:
In our environment (RHEL7.3), patching https://github.com/ClusterLabs/pcs/commit/03f17f86f68675b8d20da664e66617ce3e614de4?diff=split can solve the issue.

Patch in upstream:
https://github.com/ClusterLabs/pcs/commit/03f17f86f68675b8d20da664e66617ce3e614de4

Reproducer:
[root@rh73-node1:~]# chmod 777 /usr
[root@rh73-node1:~]# pcs cluster auth rh73-node1 rh73-node2 rh73-node3 -u hacluster -p password

Before fix:
[root@rh73-node1:~]# rpm -q pcs
pcs-0.9.152-10.el7_3.1.x86_64
[root@rh73-node1:~]# pcs cluster auth rh73-node1 rh73-node2 rh73-node3 -u hacluster -p password
Error: Unable to communicate with pcsd

After Fix:
[root@rh73-node1:~]# rpm -q pcs
pcs-0.9.156-1.el7.x86_64
[root@rh73-node1:~]# pcs cluster auth rh73-node1 rh73-node2 rh73-node3 -u hacluster -p password
rh73-node1: Authorized
rh73-node3: Authorized
rh73-node2: Authorized

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:1958