Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

Re: problems with exec command

by betterworld (Deacon)
on Feb 14, 2014 at 14:39 UTC ( #1074964=note: print w/ replies, xml ) Need Help??


in reply to problems with exec command

Your script is a huge security problem with both exec and system. Somebody passes a "name", and you embed it in a shell command. It may contain a ";" and an arbitrary shell command.

Read the system() documentation about how you can pass the arguments as an array. And also filter the input. Allow only alphabetic characters, or only specific names.


Comment on Re: problems with exec command

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1074964]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others avoiding work at the Monastery: (9)
As of 2014-09-20 18:45 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    How do you remember the number of days in each month?











    Results (160 votes), past polls