CentOS - Sep 2016 - Strange behaviour when using sudo+sh+executable.

Hi All.

I am trying to install some software. Part of its installation is an
invocation of command similar to:

# sudo  -H -E -u postgres /bin/bash -c /usr/bin/python2.7
/bin/bash: /usr/bin/python2.7: Permission denied
>From my perspective:
# ls -l /bin/bash /usr/bin/python2.7
-rwxr-xr-x. 1 root root 960376 Jul  8  2015 /bin/bash
-rwxr-xr-x. 1 root root   7136 Oct 11  2015 /usr/bin/python2.7

# su - postgres
Last login: Tue Sep  6 11:51:45 CEST 2016 on pts/6
-sh-4.2$ /bin/bash -c /usr/bin/python2.7
Python 2.7.5 (default, Oct 11 2015, 17:47:16)
[GCC 4.8.3 20140911 (Red Hat 4.8.3-9)] on linux2
Type "help", "copyright", "credits" or
"license" for more information.
>>>

I tried the same for /bin/top. From my perspective this is quite a strange
behaviour. Can someone help with this problem?

BR,
Rafal.

> On Sep 6, 2016, at 6:18 AM, Rafa? Radecki <radecki.rafal at
gmail.com> wrote:
> 
> # sudo  -H -E -u postgres /bin/bash -c /usr/bin/python2.7

Works for me. *shrug*

Is your postgres user a service account or something else strange about it?
Does 'passwd --status postgres' hint at anything?

At the end it was a sudo misconfiguration:

Defaults            log_year, log_host, loglinelen=0,
logfile=/var/log/sudo.log, noexec

This line with noexec was problematic ;)

Thanks for the help!

BR,
Rafal.

2016-09-07 2:25 GMT+02:00 Steven Tardy <sjt5atra at gmail.com>:
>
> > On Sep 6, 2016, at 6:18 AM, Rafa? Radecki <radecki.rafal at
gmail.com>
> wrote:
> >
> > # sudo  -H -E -u postgres /bin/bash -c /usr/bin/python2.7
>
>
> Works for me. *shrug*
>
> Is your postgres user a service account or something else strange about it?
> Does 'passwd --status postgres' hint at anything?
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