Google Fixes Serious Vulnerability in Gmail

Outsmart Malicious Hackers


Google started the new year by fixing a serious vulnerability in Gmail.

This was quite an interesting case and once again (as everything relating to web apps seems to be nowdays) it was an XSS flaw that allowed malicious attackers to steal your contact list, leading to some pretty bad information leakage.

Google has fixed a vulnerability in its popular GMail web mail service that creates a means for hackers to steal users’ contact lists.

The cross-site scripting flaw stemmed from the decision by GMail to store contact lists in a JavaScript file. GMail always saves contact lists as JavaScript code using the same URL, so a script featuring this URL can read out the fields of a users’ contact list. GMail failed to check what sites were attempting to run this “callback” function.

There was a previous very similar flaw on Google which effected computers with multiple Gmail users.

As a result users logged into GMail, or other Google services sharing the same login, are liable to hand over their contact list to spammers or other miscreants providing they are tricked into visiting a maliciously constructed website. Exploitation would have been as simple as fooling users into visiting a hostile website through spam messages sent to users’ email accounts.

Coders failed to take into account that it was a bad idea to save sensitive data as JavaScript, under predictable URLs, a problem Google watchers spotted shortly after Google made the coding changes last week

I do like Google though, they tend to fix things pretty fast!

Source: The Register


Posted in: Exploits/Vulnerabilities, Web Hacking

, , , , , ,

Latest Posts:


BSQLinjector - Blind SQL Injection Tool Download BSQLinjector – Blind SQL Injection Tool Download in Ruby
BSQLinjector is an easy to use Blind SQL Injection tool in Ruby, that uses blind methods to retrieve data from SQL databases.
CCleaner Hack - Spreading Malware To Specific Tech Companies CCleaner Hack – Spreading Malware To Specific Tech Companies
The CCleaner Hack is blowing up, initially estimated to be huge, it's hit at least 700k computers & is specifically targeting 20 top tech organisations.
AWSBucketDump - AWS S3 Security Scanning Tool AWSBucketDump – AWS S3 Security Scanning Tool
AWSBucketDump is an AWS S3 Security Scanning Tool, which allows you to quickly enumerate AWS S3 buckets to look for interesting or confidential files.
nbtscan Download - NetBIOS Scanner For Windows & Linux nbtscan Download – NetBIOS Scanner For Windows & Linux
nbtscan is a command-line NetBIOS scanner for Windows that is SUPER fast, it scans for open NetBIOS nameservers on a local or remote TCP/IP network.
Equifax Data Breach - Hack Due To Missed Apache Patch Equifax Data Breach – Hack Due To Missed Apache Patch
The Equifax data breach is pretty huge with 143 million records leaked from the hack in the US alone with unknown more in Canada and the UK.
Seth - RDP Man In The Middle Attack Tool Seth – RDP Man In The Middle Attack Tool
Seth is an RDP Man In The Middle attack tool written in Python to MiTM RDP connections by attempting to downgrade the connection to extract clear text creds


Comments are closed.