Posts Tagged: The Guardian


25
Sep 17

Source: Deloitte Breach Affected All Company Email, Admin Accounts

Deloitte, one of the world’s “big four” accounting firms, has acknowledged a breach of its internal email systems, British news outlet The Guardian revealed today. Deloitte has sought to downplay the incident, saying it impacted “very few” clients. But according to a source close to the investigation, the breach dates back to at least the fall of 2016, and involves the compromise of all administrator accounts at the company as well as Deloitte’s entire internal email system.

deloitte

In a story published Monday morning, The Guardian said a breach at Deloitte involved usernames, passwords and personal data on the accountancy’s top blue-chip clients.

“The Guardian understands Deloitte clients across all of these sectors had material in the company email system that was breached,” The Guardian’s Nick Hopkins wrote. “The companies include household names as well as US government departments. So far, six of Deloitte’s clients have been told their information was ‘impacted’ by the hack.”

In a statement sent to KrebsOnSecurity, Deloitte acknowledged a “cyber incident” involving unauthorized access to its email platform.

“The review of that platform is complete,” the statement reads. “Importantly, the review enabled us to understand precisely what information was at risk and what the hacker actually did and to determine that only very few clients were impacted [and] no disruption has occurred to client businesses, to Deloitte’s ability to continue to serve clients, or to consumers.”

However, information shared by a person with direct knowledge of the incident said the company in fact does not yet know precisely when the intrusion occurred, or for how long the hackers were inside of its systems.

This source, speaking on condition of anonymity, said the team investigating the breach focused their attention on a company office in Nashville known as the “Hermitage,” where the breach is thought to have begun.

The source confirmed The Guardian reporting that current estimates put the intrusion sometime in the fall of 2016, and added that investigators still are not certain that they have completely evicted the intruders from the network.

Indeed, it appears that Deloitte has known something was not right for some time. According to this source, the company sent out a “mandatory password reset” email on Oct. 13, 2016 to all Deloitte employees in the United States. The notice stated that employee passwords and personal identification numbers (PINs) needed to be changed by Oct. 17, 2016, and that employees who failed to do so would be unable to access email or other Deloitte applications. The message also included advice on how to pick complex passwords:

A screen shot of the mandatory password reset email Deloitte sent to all U.S. employees in Oct. 2016, around the time sources say the breach was first discovered.

A screen shot of the mandatory password reset message Deloitte sent to all U.S. employees in Oct. 2016, around the time sources say the breach was first discovered.

The source told KrebsOnSecurity they were coming forward with information about the breach because, “I think it’s unfortunate how we have handled this and swept it under the rug. It wasn’t a small amount of emails like reported. They accessed the entire email database and all admin accounts. But we never notified our advisory clients or our cyber intel clients.” Continue reading →


4
Nov 16

Did the Mirai Botnet Really Take Liberia Offline?

KrebsOnSecurity received many a missive over the past 24 hours from readers who wanted to know why I’d not written about widespread media reports that Mirai — a malware strain made from hacked “Internet of Things” (IoT) devices such as poorly secured routers and IP cameras — was used to knock the entire country of Liberia offline. The trouble is, as far as I can tell no such nationwide outage actually occurred.

First, a quick recap on Mirai: This blog was taken offline in September following a record 620 Gpbs attack launched by a Mirai botnet. The source code for Mirai was leaked online at the end of September. Since then, the code has been forked several times, resulting in the emergence of several large Mirai-based botnets. In late October, many of the Internet’s top destinations went offline for the better part of a day when Mirai was used to attack Internet infrastructure firm Dyn.

Enter Kevin Beaumont, a security architect from Liverpool, England who on Thursday published a piece on Medium.com about an attack by Mirai against Liberia. Beaumont had been researching the output of an automated Twitter account set up by security researchers to monitor attacks from these various Mirai botnets. That Twitter account, @MiraiAttacks, burps out a tweet with each new Mirai attack, listing the targeted Internet address, the attack type, and the observed duration of the attack.

Beamont’s story noted that a botnet based on Mirai was seen attacking the telecommunications infrastructure in the West African nation of Liberia. Citing anonymous sources, Beaumont said transit providers confirmed an attack of more than 500 Gpbs targeting Liberia’s lone underseas large-transit Internet cable, which Beaumont said “provides a single point of failure for internet access.”

“From monitoring we can see websites hosted in country going offline during the attacks,” Beaumont wrote. “Additionally, a source in country at a Telco has confirmed to a journalist they are seeing intermittent internet connectivity, at times which directly match the attack. The attacks are extremely worrying because they suggest a Mirai operator who has enough capacity to seriously impact systems in a nation state.”

Not long after Beamont’s story went live, a piece at The Hacker News breathlessly announced that hackers using Mirai had succeeded in knocking Liberia off the Internet. The Hacker News piece includes nifty graphics and images of Liberia’s underseas Internet cables. Soon after, ZDNet picked up the outage angle, as did the BBC and The Guardian and a host of other news outlets.

A graphic The Hacker News used to explain Liberia's susceptibility to a DDoS attack.

A graphic The Hacker News used to explain Liberia’s susceptibility to a DDoS attack.

The only problem that I can see with these stories is that there does not appear to have been anything close to a country-wide outage as a result of this Mirai attack.

Daniel Brewer, general manager for the Cable Consortium of Liberia, confirmed that his organization has fielded inquiries from news outlets and other interest groups following multiple media reports of a nationwide outage. But he could not point to the reason.

“Both our ACE submarine cable monitoring systems and servers hosted (locally) in LIXP (Liberia Internet Exchange Point) show no downtime in the last 3 weeks,” Brewer said. “While it is likely that a local operator might have experienced a brief outage, we have no knowledge of a national Internet outage and there are no data to [substantiate] that.” Continue reading →


17
Mar 14

The Long Tail of ColdFusion Fail

Earlier this month, I published a story about a criminal hacking gang using Adobe ColdFusion vulnerabilities to build a botnet of hacked e-commerce sites that were milked for customer credit card data. Today’s post examines the impact that this botnet has had on several businesses, as well as the important and costly lessons these companies learned from the intrusions.

cffailLast Tuesday’s story looked at two victims; the jam and jelly maker Smucker’s, and SecurePay, a credit card processor based in Georgia. Most of the companies contacted for this story did not respond to requests for comment. The few business listed that did respond had remarkably similar stories to tell about the ordeal of trying to keep their businesses up and running in the face of such intrusions. Each of them learned important lessons that any small online business would be wise to heed going forward.

The two companies that agreed to talk with me were both lighting firms, and both first learned of their site compromises after the credit card firm Discover alerted their card processors to a pattern of fraudulent activity on cards that were recently used at the stores.

Elightbulbs.com, a Maple Grove, Minn. based company that sells lighting products, was among those listed in the ColdFusion botnet panel. Elightbulbs.com Vice President Paul McLellan said he first learned of the breach on Nov. 7, 2013 from his company’s processor — Heartland Payment Systems.

elight

McLellan said the unpatched ColdFusion vulnerabilities on the company’s site was certainly a glaring oversight. But he said he’s frustrated that his company was paying a third-party security compliance firm upwards of $6,000 a year to test Elightbulbs.com for vulnerabilities and that the firm also missed the ColdFusion flaws.

“Shortly before we were told by Heartland, we paid $6,000 a year for a company to brutalize our server, for protection and peace of mind,” McLellan said. “Turns out this flaw had existed for two years and they never saw it. 

McLellan said the company received a visit from the FBI last year, and the agent said the group responsible for hitting Elightbulbs had compromised much more high-profile targets.

“The FBI investigator said, ‘Hey, don’t beat yourself up. We’ve got credit card processors and government institutions that run ColdFusion who were breached, this is small potatoes’,” McLellan said. “That was a small consolation.”

Continue reading →