Florian Lindner wrote:
I've a scripts that allows limited manipulation of a database to users. This
script of course needs to save a password for the database connection. The
users, on the other hand need read permission on the script in order to
execute it but should not be able to read out the password.
What is the common way to solve this problem?
The common way is to do something ill-conceived and insecure.
The correct approach is to use a secure technique that
does not involve storing the passwords themselves, but
instead storing a hash version of them (e.g. MD5 or SHA),
or by requiring the users to enter their passwords at
the time the information is required.
My current way is to allow the users to execute the script with sudo while
not having read permission when acting as a ordinary user. But I don't like
this solutions and consider it very ugly.
Storing passwords in the clear is always ugly and
insecure. Think about the situation where a user
(unwisely) picks a password that he also uses for,
say, his online banking. If the password is stored
in the clear, then anyone with root access can see
it and even if you trust all your administrators,
or are the only admin yourself, it's still not a
good idea to let an admin see a user's password.
-Peter
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