Tumblr patches hole after malicious site attack
Tumblr called out by malicious hacking group GNAA for not properly securing its site
IDG News Service - Popular online social networking site Tumblr was ravaged on Monday by an Internet worm that spewed racist and inflammatory messages across thousands of user accounts.
The malicious hacking group known as GNAA claimed responsibility. The group has a history of menacing online communities with inflammatory messages, an activity known as trolling. Tumblr has since fixed the security vulnerability that led to the propagation, according to the company.
The self-replicating software that quickly propagated across the site added new Tumblr entries to an untold number of user accounts. It also threatened to remove all of a user's content if the offending posts were removed.
The organization instigated the attack to protest excessive self-righteousness on the part of bloggers, according to a GNAA spokesman who answered questions by email. The replicated entry called Tumblr users "self-insisting, self-deprecating, self-indulgent empty husks of human beings." The message was tagged with the keyword "bronies," which is a group of adult fans of "My Little Pony: Friendship Is Magic," an animated television show for children.
Brooklyn, New York, resident Amanda Lucci was one Tumblr user affected by the worm. She had read on Twitter early Monday morning Eastern time that the news site Daily Dot was hacked. Because her computer was logged into Tumblr at the time, when she clicked on the Twitter link to access Daily Dot, the GNAA message replicated multiple times onto her Tumblr account.
"I was kind of panicked because I love my blog and I would be devastated if anything happened to it or if I would have to delete it," Lucci wrote by email. She learned about how to fix her account not from Tumblr but from a user on Twitter, who noted the offending entries could be successfully removed through the mass post-delete option. She also logged out for several hours and changed her password. Since then, her site appears to be operating normally.
The group had notified Tumblr of the vulnerability several weeks back, the GNAA said, but the company had not fixed the hole. That inaction was cited by the GNAA in press reports as a reason for its attack Monday. The worm apparently exploited an unsecured video embedding script.
"We did intend to protest their lax security practices. We wanted to call out the fact that their security practices are seemingly nonexistent, even when informed well in advance of the problem," wrote the GNAA spokesman in an email. GNAA has estimated that over 8,000 accounts were compromised during the attack.
A Tumblr spokeswoman declined to elaborate on the attack, noting only that "Tumblr engineers have resolved the issue." The attack affected only a few thousand Tumblr accounts, she said.
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