Feeds

Google's Lemon squeezes out web app bugs

Hot Fuzz

Choosing a cloud hosting partner with confidence

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. ®

Internet Security Threat Report 2014

More from The Register

next story
FYI: OS X Yosemite's Spotlight tells Apple EVERYTHING you're looking for
It's on by default – didn't you read the small print?
Russian hackers exploit 'Sandworm' bug 'to spy on NATO, EU PCs'
Fix imminent from Microsoft for Vista, Server 2008, other stuff
Edward who? GCHQ boss dodges Snowden topic during last speech
UK spies would rather 'walk' than do 'mass surveillance'
Microsoft pulls another dodgy patch
Redmond makes a hash of hashing add-on
NOT OK GOOGLE: Android images can conceal code
It's been fixed, but hordes won't have applied the upgrade
Apple grapple: Congress kills FBI's Cupertino crypto kybosh plan
Encryption would lead us all into a 'dark place', claim G-Men
'LulzSec leader Aush0k' found to be naughty boy not worthy of jail
15 months home detention leaves egg on feds' faces as they grab for more power
China is ALREADY spying on Apple iCloud users, claims watchdog
Attack harvests users' info at iPhone 6 launch
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.