Feeds

Google's Lemon squeezes out web app bugs

Hot Fuzz

High performance access to file storage

Google is developing an automated tool for finding common web application vulnerabilities.

The tool, dubbed Lemon, is still in development by the ad-brokering giant's security researchers but is already been used internally. It's unclear whether or not Google will release the vulnerability testing tool more generally. Free vulnerability scanners, such as Nessus, already exist while firm such as eEye and Foundstone market commercial products.

Fruity

Lemon - whose name comes from a common description for defective products - uses fuzzing techniques to uncovered cross-site scripting (XSS) flaws and other bugs. The team plan to add tests for SQL injection (another common class of web vulnerability) later.

Fuzzing (AKA fault-injection testing) involves supplying inputs that are designed to trigger and thus expose flaws in web application. Lemon analyses the response to these inputs to unearth security flaws.

Cross-site scripting remains the main focus of the tool's development. Applications such as Gmail has been the subject of development flaws such as XSS attacks in the past. The tool could make it easier for Google to nip application development errors in the bud.

"Although it [Lemon] started out as an experimental tool, it has proved to be quite effective in finding XSS problems. Besides XSS, it finds other security problems such as response splitting attacks, cookie poisoning problems, stacktrace leaks, encoding issues and charset bugs. Since the tool is homegrown it is easy to integrate into our automated test environment and to extend based on specific needs. We are constantly in the process of adding new attack vectors to improve the tool against known security problems," writes Google researcher Srinath Anantharaju. ®

High performance access to file storage

More from The Register

next story
Obama allows NSA to exploit 0-days: report
If the spooks say they need it, they get it
OpenSSL Heartbleed: Bloody nose for open-source bleeding hearts
Bloke behind the cockup says not enough people are helping crucial crypto project
Web data BLEEDOUT: Users to feel the pain as Heartbleed bug revealed
Vendors and ISPs have work to do updating firmware - if it's possible to fix this
One year on: diplomatic fail as Chinese APT gangs get back to work
Mandiant says past 12 months shows Beijing won't call off its hackers
Call of Duty 'fragged using OpenSSL's Heartbleed exploit'
So it begins ... or maybe not, says one analyst
Heartbleed exploit, inoculation, both released
File under 'this is going to hurt you more than it hurts me'
Experian subsidiary faces MEGA-PROBE for 'selling consumer data to fraudster'
US attorneys general roll up sleeves, snap on gloves
Bad PUPPY: Undead Windows XP deposits fresh scamware on lawn
Installing random interwebs shiz will bork your zombie box
prev story

Whitepapers

Mainstay ROI - Does application security pay?
In this whitepaper learn how you and your enterprise might benefit from better software security.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.