Friday, March 31, 2006

Buffer Overflow

See this

http://www.insecure.org/stf/smashstack.txt

...Njoy !

Introduction to Web Services Security

Although the basic standards for web services are of great use for a lot of different scenarios, they do lack some features that are required in most real world applications, e.g. standard ways for handling security and authentication. These features are currently under development in various standardization initiatives, and some have just surfaced as standards. One of them is WS-Security, which is an OASIS standard.

Formerly Web Services authentication was something that you would have to implement yourself in your application.

Furthermore you would need to apply transport based security to guarantee confidentiality of the data communication, if your web service exchanged data over the wire that is confidential.

Earlier SOAP implementations mainly used HTTP as the transport protocol, so the assumption was made, that the security could also be based on HTTP and thus Web Services could be secured by using SSL/TSL and Basic Authentication.

Consequently SOAP does not contain any security elements itself, but instead leaves this to be handled by a combination of transport security and custom authentication implementations.

Nowadays SOAP implementations use other protocols than HTTP in an increasing level, so the need to apply security to the messages exchanged has become very important.

Also, SOAs are designed to be a number of interconnected nodes / applications that sometimes communicate through other systems, which makes point-to-point security mechanisms as SSL/TLS inadequate

Tuesday, March 21, 2006

The STRIDE Model

Many Security Evangelists use STRIDE Model for Threat Modeling an Application

Spoofing user identity - Spoofing threats are usually associated with a wily hacker being able to impersonate a valid system user or resource to get access to the system and thereby compromise system security.


Tampering with data - Tampering with data involves the malicious modification of system or user data with or without detection.


Repudiation - Repudiation threats are associated with users—malicious or otherwise—who can deny performing an action without administrators having any way to prove otherwise. An example of a reputability threat is a user performing an illegal operation in a system that lacks the ability to trace such operations.


Information Disclosure - Information disclosure threats involve the compromising of private or business-critical information through the exposure of that information to individuals who are not supposed to see it.


Denial of service - Denial of service (DoS) threats when carried out deny service to valid users—for example, by making the system temporarily unavailable or unusable or by forcing a reboot or restart of the user’s machine.


Elevation of privilege - In this type of threat, an unprivileged user gains privileged access and thereby has sufficient access to compromise or destroy the entire system.

Thursday, March 09, 2006

What is a Comprehensive Assessment?

A comprehensive assessment is a systemic assessment performed on the application code.

Security Comprehensive Assessment – This is a line-by-line assessment of the application code to ensure there are no security vulnerabilities such as clear text passwords and SQL injection problems. NOTE: if we do not have access to the source code for a 3rd-party application black-box testing will be conducted.

Privacy Comprehensive Assessment – This is an assessment of the application code to ensure there are no privacy violations such as using the incorrect privacy statement or Legal Notice and not using data input validation rules (e.g., zip codes should only have numeric values).

Sunday, February 19, 2006

Cleared the CEH

Hi ,

I have cleared the CEH (Certified Ethical Hacker) examination.

The CEH certification covers nearly every aspect of penetration testing and I would recommend to start with CEH.

My certification is an asset to my company and the value of the knowledge I carry.
It indeed has made a valuable difference to me and my company.

Regards,
Dharmesh.

Monday, January 16, 2006

Google: Yes, You Can Find Just About Anything

Hackers and security experts use various custom and open source tools tocomplete their tasks.

In fact, one of the tools they use you probably useevery time you browse the web, the Google Search Engine.I remember the first time I used the Google Search Engine years ago. I was amazed at how quickly it fulfilled my search request.

Google's huge indexof systems / information and it's ability to perform complex searches haveevolved over the years. When we performed security assessments andpenetration test, we regularly use Google to locate information thatorganizations typically want to keep private and confidential.

Full: http://castlecops.com/article-6466-nested-0-0.html

Data protection watchdog investigation finds no evidence

UK banks escape punishment over India data breach

UK banks will not face any action over a data breach in an Indian call centre last year, where an undercover newspaper reporter was allegedly sold bank and credit card details of 1,000 customers.

Monday, January 02, 2006

Automatically Hardening Web Applications using Precise Tainting.

Most web applications contain security vulnerabilities. The simple and natural ways of creating a web application are prone to SQL injection attacks and cross-site scripting attacks as well as other less common vulnerabilities. In response, many tools have been developed for detecting or mitigating common web application vulnerabilities. Existing techniques either require effort from the site developer or are prone to false positives. This paper presents a fully automated approach to securely hardening web applications. It is based on precisely tracking taintedness of data and checking specifically for dangerous content only in parts of commands and output that came from untrustworthy sources. Unlike previous work in which everything that is derived from tainted input is tainted, our approach precisely tracks taintedness within data values.

Monday, December 19, 2005

Google to buy Opera?


Google may soon announce its acquisition of browser firm Opera, if rumour is to be believed.

Pierre Chappaz, founder of Kelkoo and ex-Yahoo! Europe president, has revealed in his personal blog, Kelblog, that a "usually well informed source" has told him the buy is on the cards.

Such a move could come in response to Microsoft's latest iteration of its Internet Explorer, IE 7. Should Microsoft, for example, make a better fist of integrating its own search technology into its browser, Google could see itself losing market share.

Saturday, December 17, 2005

Database Threats

• Password Compromised – same as brute force, or username/password hard-coded in code

• SQL Injection - attacker uses poorly designed input validation routines to create or alter SQL commands to gain access to unintended data or execute commands.Access with Elevated Privileges – incorrect configuration leads to access with higher-than-expected privileges

Authentication Threats

  • Brute Force – attacker iterates through multiple combinations in the hope of finding a valid username/password combination
  • Man in the Middle – attacker sniffs packets from the network, modifies them, and inserts them back into the network
  • Session Hijacking - attacker uses authentication tokens to seize control of a legitimate user’s session while that user is logged into the application
  • Session Replay - attacker captures authentication tokens (e.g. session ID, cookies) to bypass normal authentication without the legitimate user having to be logged into the application.

Microsoft
OWASP
OISSG

Tuesday, December 06, 2005

Will the concept of 'office' fade out?

Technology which might expedite the arrival of the next generation workplace is Personal Internet Communicator (PIC), which is an affordable consumer device designed to provide managed internet access for people in global, high-growth markets to enhance communications, entertainment and education opportunities.

The emergence of collaborative technology and tools will further reduce the need to go to office and be at your desk per se. You might be able to sit on India gate lawns and write that important mail, or might be able to present an important presentation over video conferencing while your kids enjoy their favorite ride at Appu Ghar. If this sounds like a sci-fi then wake up to reality. All this and more is likely to happen in the coming three-to-four years. In fact, IT-majors Microsoft and IBM are working hard to make this vision a reality

Details

Monday, December 05, 2005

More Windows exploits posted online

Two new pieces of computer code that could be used in cyber attacks on Windows users were posted on the web on Wednesday and Thursday.

The exploit posted on Thursday is another that could allow a remote attacker to gain complete control over a vulnerable computer. The code takes advantage of a flaw in a Windows component for transaction processing, called the Microsoft Distributed Transaction Coordinator. Microsoft addressed the flaw in security bulletin MS05-051 in October.

Tuesday, November 29, 2005

What is Blogging ?

Hi,

Well many people asked me of what is this blogging all about...
And this is how I can define for you all...
Comments are always welcome..!!

Blogging
A blog is essentially a web application which contains periodic posts on a common webpage.
Blogging combines a personal web page with tools to allow comments to be left and to make linking to other pages and blogs and ‘trackbacks’ – a system that allows a blogger to see who has seen the original post and has written another entry concerning it.

Monday, November 28, 2005

Failure to comply W3C...

Hi,

The vast majority of public service websites in Europe are failing to meet international e-accessibility standards.

That's according to a report released by the UK EU presidency, which shows that a mere three per cent of public service websites are fully meeting the terms of the minimum accessibility requirements as stated by World Wide Web Consortium (W3C) guidelines.

Most of the websites fell down in the area of providing suitable text alternatives for images on their sites, with a large number of websites also failing to fully explain the relationship between frames on a website.

Seems, there is a trade-off somewhere ...

Regards,
Dharmesh.

ISSAF Draft o.2 to be released soon...

HI All folks,

As a part of ISSAF, it's nice to tell you all that the ISSAF (Information System Security Assessment Framework) Draft 0.2 will be available to you soon.

Watch out at http://www.oissg.org

My contribution includes the Web Application Security Assessments....:)

WRegs,

Dharmesh.


Friday, November 25, 2005

Free Software Foundation to take Gates to task...

The Free Software Foundation Europe (FSFE) has filed a request with the European Union asking to get involved in an EU antitrust suit against Microsoft.

The Linux and Samba developer group has filed its request for leave to intervene in the case saying Microsoft's fiscal might is skewing the fight unfairly.

Georg Greve, president of FSFE, said in a statement: "The more Microsoft is able to purchase its opponents' solidarity, the more important FSFE's commitment to freedom and interoperability is."

Conversely, Microsoft has also been lobbying for new supporters in the case, asking big business to intervene on its side. Several opponents of Redmond, including the Computer and Communications Industry Association and Novell, dropped their objections following payouts from Microsoft.

Saturday, November 19, 2005

Friday, November 18, 2005

New Sober Virus

There are at least three new variants of the Sober worm spreading across the internet via email messages. The viruses are activated once a user clicks on an infected attachment.

Sober can hijack a Windows-based computer and force it to send spam emails. The continuous emailing can lead to overloaded servers and reduced network performance.