how can LDAP injection blocked?

[Burak Arslan]

Michael Ströder yazmış:
> mete bilgin wrote:
>   
>> I'm developing a web-based ldap gui with python ( with python-ldap ).
>> And i miss something about security. How can i blocked ldap injection?
>>     
>
> Could you please elaborate on what you mean with "ldap injection"?
>
>   


i guess what he means is something like this: imagine the following filter:

(&(objectClass=inetOrgPerson)(uid=$input))

where $input comes from a web form, or similar. if $input==')' you get

(&(objectClass=inetOrgPerson)(uid=)))

which is invalid.

so some form of input validation must be used.

please correct me if i'm wrong

best regards
burak