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From: "Jonathan Anderson" <jonathan@FreeBSD.org>
To: "Ian Lepore" <ian@freebsd.org>
Cc: "Konstantin Belousov" <kostikbel@gmail.com>,
 "Alexey Dokuchaev" <danfe@FreeBSD.org>, src-committers@freebsd.org,
 svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject: Re: svn commit: r318313 - head/libexec/rtld-elf
Date: Mon, 15 May 2017 16:44:25 -0230
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On 15 May 2017, at 16:38, Ian Lepore wrote:

> On Mon, 2017-05-15 at 22:00 +0300, Konstantin Belousov wrote:
>> On Mon, May 15, 2017 at 06:52:36PM +0000, Alexey Dokuchaev wrote:
>>>
>>> Does this have any security implications?
>> What do you mean ?
>>
>
> Well, for example, it seems like it would allow anyone to execute a
> binary even if the sysadmin had set it to -x specifically to prevent
> people from running it.

You can already execute "non-executable" binaries using the `exec` shell 
built-in:

```
$ cp /bin/sh .
$ chmod -x sh
$ exec sh
```


Jon
-- 
Jonathan Anderson
jonathan@FreeBSD.org