Forbes.com has become the latest media outlet to fall to an attack by the Syrian Electronic Army (SEA) with the account records of more than a million people swiped.
A database containing email address and password combinations for 1,071,963 accounts was dumped online by the hacktivisits – including the records for Forbes contributors.
Although the passwords were one-way encrypted, the publisher strongly urged its readers to change their login secrets. The team added:
The email address for anyone registered with Forbes.com has been exposed. Please be wary of emails that purport to come from Forbes, as the list of email addresses may be used in phishing attacks. We have notified law enforcement. We take this matter very seriously and apologize to the members of our community for this breach.
Just how exactly did Forbes protect its punters' passwords? After looking through the data, Sophos reckoned the site stored the information in the PHPass Portable format: each password and a random 6-byte salt were together run through the MD5 algorithm to generate a hash, and 8,192 iterations of MD5 were performed on the hash and the password. The final result was saved to the database.
Users with particularly trivial passwords will be vulnerable to a dictionary attack; although the use of salt will slow down a miscreant, MD5 is hopelessly weak. The attackers can, say, combine the password “123456” with a particular user's salt and quickly generate a hash to check against that user's database entry. If it matches, the password is revealed; if not, try again with another similarly crap password.
Now that the data is out there, people who used their Forbes.com email address and password combination to log into various other websites are at risk of losing control of multiple web accounts.
"It took about an hour, using one core of a vanilla laptop, to crack close to one-quarter of the passwords of the 500 or so Forbes employees in the database," said Sophos' Paul Ducklin.
"Astonishingly, 73 Forbes staffers (more than one-eighth of the list) had chosen a password consisting of their company's name, Forbes, followed by zero to four digits. 1 and 123 were the most common suffixes.”
Three online articles were defaced by the SEA as proof it carried out the database raid, and at the time of writing, Forbes' blog sites remain out of action. ®