Re: capture exception

Ruben Safir <[email protected]>
Newsgroups gmane.comp.apache.mod-perl
Message-ID <[email protected]>
On Tue, May 30, 2017 at 05:10:17PM +0100, Clive Eisen wrote:
> It is only a security hole if you eval user input.
> 


What do you call return values from the internet?

> 
> --
> Clive Eisen
> GPG: 75056DD0
> 
> 
> 
> 
> 
> 
> > On 30 May 2017, at 17:00, Hiram Gibbard <[email protected]> wrote:
> > 
> > I might be hijacking this... Sorry, but...I recently used the Perl eval function to determine if a ldap search returned a error or not. Basically, a user's record has a attribute that points to a assistant, and If that assistant no longer exists the app was throwing a error since it executed a ldap call to that assistant's record. So I used eval to check if the error was returned, and if so, skipped the function where it tied searched the assistant record in ldap.  Is this the same eval scenario you described which has a security whole?
> > 
> > 
> > I was just reading everyone's reply and now I am worried I created a security hole.
> > 
> > Thanks
> > 
> > On Tue, May 30, 2017 at 10:04 AM, Dirk-Willem van Gulik <[email protected] <mailto:[email protected]>> wrote:
> > 
> > > On 30 May 2017, at 16:58, [email protected] <mailto:[email protected]> wrote:
> > >
> > > On Tuesday 30 May 2017 15:53:13 James Smith wrote:
> > >> String eval should be avoided at all costs [especially if you parse user
> > >> input] - functional eval is different - and is a good model for catching
> > >> errors etc
> > >
> > > Yes, string eval should be avoided in all usage. But this discussion was
> > > about that functional eval.
> > 
> > Aye - right you are - apologies for causing confusing and missing the (/{.
> > 
> > Dw.
> > 
> > 
> > 
> > -- 
> > Hiram Gibbard
> > [email protected] <mailto:[email protected]>
> > http://hiramgibbard.com <http://hiramgibbard.com/>
> > 
> 

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