Security related aspects of databases and database access.

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11
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3answers
10k views

When is it appropriate to SSL Encrypt Database connections?

Let's say I have a web server I setup, and then a database server. However, they are communicating locally and are behind firewall. In my opinion, no SSL is needed here right? The only time to use ...
-3
votes
1answer
68 views

Should I do science of computing or systems analyst? [closed]

I want to become a federal analyst of cyber crimes and I dont't know what's the right university course for me, I would like to know what's the cons and pros of choosing one or another course and ...
2
votes
4answers
385 views

“Out of the box” database security

When you install a RDBMS (say, PostgreSQL) and create a database, without taking any additional steps, what can you assume about the security/confidentiality of the data? I mean, is it encrypted by ...
2
votes
3answers
585 views

What things should a penetration tester know about databases?

I want to start learning about databases from a penetration tester's perspective and I would like to know what things will be useful on the long run. Also do you know any good books to kickstart my ...
6
votes
1answer
605 views

SQL Server of my hosting provider allows me to see all databases. How secure is my mine?

My hosting provider allows access to its SQL Server. When I connected to it by SQL Management Studio, all hosted databases were visible. I can't get the details on these databases, I get this ...
1
vote
1answer
83 views

How to restrict access to a resource based on frequency of access?

I want to restrict access to a particular resource based on time (configurable). So suppose user A has time t configured from him. He can access the resource only once every t time units. The values ...
1
vote
1answer
134 views

Oracle database privileges [closed]

I have a 10.2.0.5.0 Oracle Database and a list of users who i need to grant some privileges to (Mainly to generate reports and so on). I used impersonation, which means i created one Oracle user so ...
1
vote
2answers
222 views

Main requirements to secure my Application in any database related features

I have an application which is hosted on a windows server on which an SQL DB exists. This server communicates with the clients and agents installed on host PCs through TCP/IP and SSL connections. I'm ...
8
votes
2answers
290 views

What's ownership concept for?

I fail to grasp the necessity of using concept of owner (ownership) and find clear explanation of its necessity. What cannot be done without concept of owner(ownership) in filesystem/database object ...
6
votes
3answers
864 views

How do poor-quality initialization vectors affect the security of CBC mode?

(If the consensus is that this question belongs on crypto, rather than here, please feel free to [tell me to] migrate it.) From what I have read (looking specifically at AES in Cipher Block Chaining ...
4
votes
1answer
948 views

HIPAA: How am I required to secure PHI database access creds on my web server?

Assuming I have a database of PHI that my web application needs to access, how am I required to secure the credentials on the webserver that the web application uses to access this database? Is ...
1
vote
1answer
84 views

Hybrid Encryption System - Is this unnecessary in this case? [closed]

I have a column in my database that I need to encrypt. The column can contain any arbitrary data. What I am thinking is to generate a public and private key pair first. Store the public key in a ...
0
votes
1answer
157 views

What are the risk associated with granting full permission (Any) to DB Admin users to the Database?

Usually in a well controlled environment, Database Admins are granted specific rights like Read, Modify...etc. No one has the right (ANY) to perform on any Database. Certain requirements dictate to ...
4
votes
6answers
383 views

Ban or delete abusive users [closed]

I'd like to hear recommendations on a best practice for handling abusive users (for whatever reason) on an authenticated Website. Is there any point in keeping the user in the database with a ...
5
votes
3answers
2k views

MS-SQL Monitoring/Auditing of PHI for HIPAA

We're currently looking for a solution (hardware or software-based) that can monitor and audit all PHI viewing activity per new HIPAA rules. We use MS-SQL for our production database. We have the ...
3
votes
2answers
2k views

IS TDE PCI-Compliant?

According to PCI PAN can be stored in the database as long as strong cryptography is used. I couldn't find which cryptography is considered strong according to PCI. Here's the issue: I have PAN ...
3
votes
2answers
604 views

How to design SIEM RFP, keeping in view large database requirements?

I need some help regarding the design of SIEM requirments. In regard to large databases, what general requirements do I need to provide in order to provide coverage related to DB security? Some of ...
5
votes
2answers
2k views

If encrypted data in a database are accessed by application, does that mean that the application has the decryption key?

I'm using an application linked to a database which holds confidential data (numbers). According to the developer, this data is encrypted. However, i can easily generate a report that will show the ...
6
votes
2answers
353 views

Can a web application administrator access the database of that application?

We have a web application linked to a database. The database is secured but contains unmasked confidential numbers. Can a normal administrator who can access the application, access those numbers in ...
13
votes
1answer
1k views

Is there a list of default, standard or third-party “users” for Oracle?

When installed, and depending on which options it is installed with, there are a bunch of standard users pre-created in Oracle. Additionally, third-party software often has its own set of ...
2
votes
2answers
842 views

Least insecure way to encrypt a field in the database so that it can still be included in queries

I have a table where all columns need to be encrypted (aside from the PK). This will be achieved using AES at the application level. However there is one particular field that needs to remain ...
1
vote
1answer
2k views

How to secure database table of users for an application?

I am working on a Windows application that utilizes a MySQL database for its user authentication and data storage. Within the application, the highest level of user (Administrator) can create and ...
3
votes
3answers
734 views

Best security practices for software development and release?

I am trying to figure out a way to limit access and also to establish processes to avoid any and all of my team members to compromise our entire production system. We have a team of 10 developers, 1 ...
3
votes
0answers
980 views

Where to store sensitive client details (MYSQL DB credentials) [duplicate]

I have a security related question about storing some client information - specifically their database login credentials. My app works based on the client and so the database details need to be set ...
0
votes
3answers
1k views

Password and username used to connect to database in source code [duplicate]

In PHP scripts that communicate with the database I have the username and password to the database in plain text i.e. mysqli_connect('localhost:3306', 'root', 'PASSWORD!'). From OWASP Do not ...
6
votes
1answer
814 views

Database encryption or filesystem encryption?

Recently I've been working on some data which, although not directly governed by any infosec laws, is sensitive enough to warrant being encrypted. I'm interested in finding out about best practises ...
8
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3answers
760 views

How are large tech sites such as LivingSocial, Zappos, LinkedIn and Evernote hacked?

How are large tech sites such as LivingSocial, Zappos, LinkedIn and Evernote hacked? (i.e. how is their entire dataset of users obtained?) LivingSocial - 50 Million Users Exposed Zappos - 24 Million ...
4
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4answers
2k views

Database hardening techniques

So as I understand it database hardening is a process in which you remove the vulnerabilities that result from lax con-figuration options. This can sometimes compensate for exploitable vendor bugs. ...
4
votes
2answers
1k views

Secure yet reversible encryption for local data store

I'm working on a piece of software to store and manage records for a youth group. They've found that a lot of the time they spend on record-keeping and admin is taken up by scanning through looking ...
1
vote
1answer
140 views

Isolating database? Is it possible?

I have been assigned CTF project for IT Security for my final year project in school. We are planning to have a flag that are base on SQL injection but for the user to overcome the challenge, they ...
7
votes
2answers
829 views

How dangerous are direct references to database keys?

An OWASP note suggests that direct object references are considered insecure in some contexts. They defined "direct object reference" as follows: “A direct object reference occurs when a developer ...
4
votes
1answer
2k views

Does Web Apps and Databases running on AWS EC2 need a IDS/IPS?

I have googled around for information about Web Apps or Databases running on AWS EC2 needing a IDS/IPS or not. I will present my findings so far here, but it will be good if you guys can confirm ...
10
votes
6answers
13k views

xp_cmdshell: should it ever be used?

Can 'xp_cmdshell' ever be used safely within a stored proc and are there any situations for which there really is no other option? In other words, should it's useage within a stored proc always be ...
2
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2answers
146 views

Database security: Remove superuser role

I've recently heard on some IT-SEC conference, that good idea to secure database (probably against privilege-escalation attack) is to remove superuser role, and leave only user roles. I imagine that ...
5
votes
4answers
280 views

What kind of attacks result in an attacker only being able to leak a site's database?

Of the public disclosures I've seen from recently compromised sites, it seems common for only the database to be leaked, rather than the application code, or rather than a complete takeover. Is this ...
2
votes
2answers
615 views

MySQL Access Control?

I have read somewhere that it is better to have two different MySQL logins in order to prevent hacking. What I mean is having one MySQL login for read access (SELECT permission) and another login for ...
5
votes
2answers
442 views

How did Evernote detect the security breach?

http://blog.evernote.com/blog/2013/03/02/security-notice-service-wide-password-reset/ Evernote's official message says little about technical details of the attack and how it was detected. ...
2
votes
1answer
312 views

Can we reverse engineer binlog with row format to make MySQL AES_ENCRYPT visible?

Suppose if I am using the mysql database based encryption using AES_ENCRYPT function & insert records, is it possible to decode the row formatted binlogs generated by MySQL to obtain the actual ...
3
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2answers
710 views

Encrypting Fields in Database

I'm working on an ASP.NET web application that will have to store sensitive information. I would like to encrypt the sensitive fields to protect against any possible SQL injection vulnerabilities. ...
3
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7answers
571 views

How to provide security for passwords stored in Database? [duplicate]

Passwords of end Users are stored in Database which is encrypted (using one way hash like MD5). Apart from me, there are 'other' people belonging to other teams who have access to Database which means ...
5
votes
4answers
891 views

How to upgrade the hashing method of a live database without compromising security?

I'm working on an Intranet project that is accessible from the outside. The password are stored in a Sql Server database in the normal Hash and salt method. The problem lies in the hashing algorithm. ...
3
votes
4answers
198 views

Generate DB Password from license key - a good idea?

There's this web app which has a SQLServer database, and the connection string it uses to access the database is not stored in any configuration file. Rather, the designers decided it would be a good ...
7
votes
2answers
2k views

Keeping user data private in a cloud environment like Google App Engine

I am writing an open-source Java application for Google App Engine (GAE). The application will let users create content that is intended to be private. I want to provide reasonable assurances that ...
10
votes
3answers
1k views

Is it preferable to perform encryption using database functions or code?

Several databases I am familiar with provide functions or modules for encryption. Examples include dbms_crypto for oracle databases and built-in functions for MySQL. Most of the commonly used ...
0
votes
1answer
329 views

What should be Database encryption strategy ?

In MS SQL Server 2005/2008 standard encryption all data in the database is encrypted using the SMK/DMK scheme. In this scheme a key is issued for each client connecting to the database. What would a ...
1
vote
3answers
358 views

For what do I hash user passwords with PDKDF2 when the user data is stored in the same database?

I'm hashing the passwors of my users with PDKDF2 right now. A user can gain access to his account with his password. When the user is logged in he can edit his personal information and do other stuff ...
4
votes
3answers
2k views

Security/Malware implications of storing data in a BLOB as opposed to the file system

From a programming perspective, there has long been a debate over whether to store files in a BLOB or Binary field in a database, or on the file system. The debate always seems to center around ...
5
votes
2answers
2k views

Security of NoSQL databases

Hopefully this isn't too broad. I've got little experience with NoSQL databases, but I know that they are rising in popularity. As a developer that is extremely concerned with security, I'm ...
5
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4answers
417 views

Does any database let you disable non-parameterized queries and therefore disable SQL injection?

Is there a database that allows this already? If not, here is how I think it could be done. I think it would require modifying the database software and the driver or code that is assembling the SQL ...
7
votes
2answers
1k views

Sending data form registration forms

I understand that sending data from the user to the server, unencrypted, is a bad practice. That is logical. So how do I encrypt 'userside' and send the data to the server in encrypted form? Can ...