Tag Archives: web-development

BBC website and iPlayer suffer weekend outage: ‘severe load’ on servers suggests DDoS attack

The BBC hit technical problems over the weekend leaving its website and the iPlayer catch-up service unavailable to some users. Gremlins have managed to find their way into the BBC’s systems causing technical problems which are still ongoing days later. The broadcaster confirmed on Friday that it was working to fix problems causing some section of BBC online to be inaccessible. Much to their dismay, users were confronted with messages stating that content wasn’t available. “We’re fixing a problem that means some people can’t access parts of BBC Online. As soon as it’s fixed we’ll let you know.” said the BBC iPlayer Twitter account on 19 July. More than 48 hours later the BBC apologised to viewers for a lack of resolution, tweeting: “Apologies. We know some users are still unable to access BBC iPlayer. We’re working hard to resolve the issues. Thanks for your patience.” It’s unclear how many users were and still are affected by the outage but it appears to be widespread. The BBC was forced to use a simplified version of its website due to the problem. The BBC said, “engineers noticed that there was a ‘severe load’ on the servers underlying the video-on-demand system.” This suggests the problem could have been down to a DDoS (distributed denial-of-service) attack. The web iPlayer appears to be working properly now but the basic website is still in use stating: “Due to technical problems, we are displaying a simplified version of the BBC Homepage. We are working to restore normal service.” Source: http://www.pcadvisor.co.uk/news/internet/3531696/bbc-website-iplayer-suffer-weekend-outage/

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BBC website and iPlayer suffer weekend outage: ‘severe load’ on servers suggests DDoS attack

17-Year-Old Behind Norway DDoS Attacks This Week

On Thursday, the Norwegian police have arrested and charged a 17-year-old in connection to the recent massive distributed denial-of-service (DDoS) attacks directed at major financial institutions and other businesses in the country. The teen, from the city of Bergen, on Norway’s west coast, claimed to be part of the hacktivist group Anonymous Norway, who, in a Twitter message, dismissed any connection to him or the DDoS incidents. On the day of the attack, the teenager sent a letter to the media, claiming to be part of Anonymous and saying that “the motivation behind the current attacks and the next attacks in the future is to get the community to wake up. The number of major IT security attacks is increasing and there is nothing being done to prevent such events.” Evidence that Anonymous Norway was not involved in the incidents is the fact that the boy joined the group’s Facebook page on the same day of the attack. Furthermore, the hacker outfit provided a Pastebin link in a new tweet, pointing to the identity of the perpetrator; they did not create the post, just scooped it up. Initially, the youngster was charged with gross vandalism, which carries a maximum prison sentence of six years in Norway. However, since he has no record and is still a minor, this should be greatly reduced. According to News in English, Frode Karlsen of the Bergen police told Norwegian Broadcasting that the authorities are taking the matter seriously because this sort of attack can have significant impacts on society, like individuals not being able to reach emergency services in case they needed help. After his arrest, the teen cooperated in the investigation and clarified the nature of his actions. His defense lawyer stated that “he’s sorry for having caused all this and has laid his cards on the table.” The DDoS attack, which occurred on Tuesday, was considered among the largest ever seen in Norway and leveraged the vulnerable “pingback” WordPress feature. Its increased significance is due to the fact that it targeted layers three (network) and four (transport) of the OSI model, as well as layer seven (application), at the same time. Mitigating an application layer DDoS attack is not too easy, because the requests are directed at the application interface and mimic legitimate behavior, which makes filtering out the bad traffic more difficult. The attack aimed at disrupting the online services of major financial institutions in Norway (Norges Bank, Sparebank 1, Storebrand, Gjensidige, Nordea, Danske Bank), as well as other business, like Scandinavian Airlines (SAS) and Norwegian Air. The website of the largest telecommunications company in Norway, Telenor, was also affected. Source: http://news.softpedia.com/news/17-Year-Old-Behind-Norway-DDoS-Attacks-this-Week-450391.shtml

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17-Year-Old Behind Norway DDoS Attacks This Week

Norway banks hit in largest-ever DDoS attack, Anonymous ‘takes credit’

Norway’s top financial institutions have been hit in what appears to be a coordinated cyber-attack, the biggest-ever the country has experienced. Anonymous Norway may be responsible for the operation. The Tuesday attack targeted at least eight top Norway companies, including central Norges Bank, Sparebank 1, Danske Bank and insurance companies Storebrand and Gjensidige. Three Norwegian airlines and a big telecommunication company may also have been affected by the same attack. The malicious bombardment with requests caused traffic problems for their website and disrupted access throughout the day. This affected the banks’ online payment services as well. “The scale is not the largest we have seen, but it is the first time it has hit so many central players in the finance sector in Norway,” said the head of Evry’s security team, Sverre Olesen in an interview with Dagens Næringsliv business newspaper. Evry provides services to many of the affected companies and was busy dealing with the emergency. The company said the attackers used a vulnerability in the blogging platform WordPress and other venues to hit the websites. They didn’t appear to try to hack into the targets’ networks and try to steal any personal information, it added. The source of the attack was abroad, Evry said. Norway’s National Security Authority (Nasjonal sikkerhetsmyndighet, NSM) said it was investigating the attack, but could not identify the perpetrators yet. The newspaper said it received an email signed by Anonymous Norway claiming responsibility for the DDoS attack on the banks. The email came before the news about it broke. But a tweet on the Anonymous Norway Twitter account denied the hacktivist group’s involvement, saying they were “laughing at those who think we are behind the attacks.” Source: http://rt.com/news/171724-norway-banks-anonymous-ddos/

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Norway banks hit in largest-ever DDoS attack, Anonymous ‘takes credit’

‘Political’ DDoS Attacks Skyrocket in Russia

Commercial hackers in Russia are giving way to politically motivated cyber criminals targeting ideological enemies, a new study said Wednesday. The most powerful DDoS attacks on Russian websites in the first six months of 2014 were triggered by the political crisis in Ukraine, digital security company Qrator Labs revealed. February’s Olympic Games in Sochi also prompted a spike in DDoS attacks, said the study, as reported by Bfm.ru news website. Hacker attacks in Russia have generally decreased in quantity, but have become more powerful compared with the first six months of 2013, the report said. About 2,700 distributed denial-of-service (DDoS) attacks occurred during the first six months of 2014, compared with 4,400 over the same period last year, Bfm.ru said. But the number of powerful attacks upward of 1 Gbps increased five times to more than 7 percent of the total, the report said, citing Qrator Labs digital security company. Some of the attacks peaked at 120 to 160 Gbps, the report said. Attack time also grew significantly, with DDoS strikes lasting up to 91 days, compared with 21 days in the first half of 2013. Average botnet size tripled from 136,000 to 420,000 machines per attack. This indicates ideological motivation on behalf of the attackers, who, unlike criminal hackers attacking websites for money, have more time at their disposal, Qrator Labs was quoted as saying. The media made the list of prime DDoS targets along with payment systems and real estate websites. Last season, Forex websites and online stock exchanges accounted for the “absolute majority” of the attacks, the study said, without providing exact figures. Source: http://www.themoscowtimes.com/news/article/political-ddos-attacks-skyrocket-in-russia/503226.html

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‘Political’ DDoS Attacks Skyrocket in Russia

June – The month of DDoS attacks

The list of DDoS attacks in the month of June has made for grim reading. High-profile sites have been targeted by extortion demands, online games got disrupted and at least one company was put out of business as a direct result. While it’s tempting to look for a single cause at the root of this apparent tsunami of distributed denial-of-service activity, the reality is considerably more complex. Online activism, the profit motive and even potential nation-state activity contributed to June’s high volume of DDoS attacks. The only commonality, in fact, may be the ease with which DDoS attacks can be launched. Experts like Molly Sauter, an academic and author of the forthcoming book The Coming Swarm, say that the process is childishly simple. “Literally, if you have a credit card and if you’re bored, it could be anyone,” Sauter told Network World. “It’s so easy to rent a botnet – most of them are out of Russia – and you can rent one for stupid cheap, and then deploy it for a couple of hours, and that’s really all you need to target a major site like Feedly or Evernote.” Sauter’s research focuses on the socio-political aspects of technology. She highlights the attacks, earlier in June, on websites connected to the World Cup’s sponsors and backers, which used the iconography of Anonymous. “I’m seeing a lot of Anonymous-oriented DDoS actions,” she said. Anonymous, according to Sauter, is a useful “brand” for politically motivated DDoS attacks, allowing groups to identify themselves with a particular flavor of political thought, despite no organizational connection to other activists. But the highest-profile attacks in the U.S. this June were not politically motivated – the DDoS attempts that took down RSS reader Feedly and note-taking and personal organization service Evernote drew big headlines, and Feedly, at least, was asked for ransom by its attackers. Feedly didn’t pay up, and, according to Forrester principal analyst Rick Holland, that’s probably for the best. “There’s no guarantee that they’re not going to continue to DDoS you,” he said. “It’s like regular extortion – you start paying people off and then, suddenly, they’re going to keep coming back to you every month.” Holland stopped short of urging a blanket refusal to pay off DDoS extortionists, however, saying that companies need to decide their own cases for themselves, in close consultation with their legal teams. He doesn’t know of any companies that have paid a DDoS ransom, but said that it wouldn’t surprise him to learn that it has happened. “I wouldn’t be surprised if people have gotten DDoS, it didn’t go public, they paid a ransom and that was that, but I have not specifically had those conversations,” he said. IDC research manager John Grady said that the increasing primacy of online services means that extortion-based DDoS attacks are becoming a more serious threat. “When there are direct ties from resource availability to revenue, targeting availability is a quick way to get someone’s attention,” he said. Grady echoed both Sauter’s point about the general cheapness of botnets and Holland’s argument that paying the ransom doesn’t make a company proof against further attacks. What’s more, he said, the growing power of some types of attack swings the balance of power further in favor of the attackers. “Increasingly, the ease of amplifying attacks through DNS or NTP, which can ramp traffic up in the hundreds of gigabit range that we’ve seen become common, gives attacks real economies of scale,” Grady said. Research from Forrester shows that, in addition to volumetric attacks like DNS and NTP (which essentially flood targets with unwanted data), targeted application-level attacks have been on the rise. Application-level incidents had been seen by 42% of DDoS victims surveyed in a 2013 report – just shy of the 44% that suffered volumetric attacks. Moreover, 37% used some combination of techniques. According to a report from Infonetics, that trend has prompted increasing attention for application-level mitigation technology. “An increasing number of application-layer attacks, which older DDoS detection and mitigation infrastructure can’t identify and block, are forcing companies to make new investments in DDoS solutions,” wrote principal security analyst Jeff Wilson in December. What this means is that a DDoS attack, whether it’s motivated by politics or money, is an increasingly unequal struggle. Attack techniques have become easier, cheaper and more powerful at the same time as their effects have become more damaging – and defensive measures have failed to keep pace. “The cost of entry is very low for the attackers and the cost to defend is very high for the targets,” said Holland. He said that the best defense may be to simply be as forewarned as possible, and to make plans in advance for potential DDoS incidents. Many businesses haven’t even considered the potential ramifications of a DDoS. Source: http://www.networkworld.com/article/2449855/security0/bloody-june-what-s-behind-last-month-s-ddos-attacks.html

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June – The month of DDoS attacks

Could Cookies Be Used to Launch DoS Attacks?

Giant cookies could be used to create a denial of service (DoS) on blog networks, says infosec researcher Bogdan Calin. Such an attack would work by feeding users cookies with header values so large that they trigger web server errors. Calin created a proof of concept attack against the Google Blog Spot network after a customer reported problems with internal security testing. In his subsequent tests, he found that if one sends many cookies to a browser, sets them to never expire and includes pointers to a blog network’s root domain, the user won’t ever be able to see any blogs on the service. Victims can tell if supersized cookies have been stuffed down their browser’s throats when 400 errors such as “Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit” appear. Sydney security bod Wade Alcorn (@WadeAlcorn) said the attack would work if custom cookies could be set. “This attack, denial-of-service by cookies, sets many long cookies, forcing the browser to create a very long request [that] is too long for the server to handle, and simply returns an error page,” Alcorn said. “The vulnerable browser won’t be able to visit that origin until the cookies are cleared. “When a browser visits one of these [user-controlled] subdomains it will allow a cookie to be set on the parent domain [which] means that when a denial-of-service by cookies attack is launched, the victim browser will not be able to visit the parent domain or any of the subdomains.” For an application to be vulnerable it must provide an opportunity for the attacker to set custom cookies in the victim’s browser, Alcorn pointed out. Chrome users were not affected when perusing Blog Spot but were on other unnamed domains. Alcorn said a Google security rep told him the risk was a problem for web browser developers to fix, rather than a lone web app providers, and welcomed ideas that could squash the vector. Source: http://www.theregister.co.uk/2014/07/02/monster_cookies_can_nom_nom_nom_all_the_blogs/

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Could Cookies Be Used to Launch DoS Attacks?

The World Cup of DDoS Attacks

Hacktivist for Operation Hacking Cup #OpHackingCup took down the Brazil World Cup site and have targeted hundreds of other sites.  This was not the first time a major event has been targeted nor will it be the last. Hacktivist have been actively leveraging Distribute Denial of Service (DDoS) attacks as a way to successfully highlight and protest against political, economic or ideological conflicts for quite some time. It has become so mainstream there was even a petition to the Obama administration to make DDoS legal. The FFIEC recently issued guidance to financial institutions with a quick guide on mitigation techniques.   Techniques used by cybercriminals to conduct attacks have become increasingly sophisticated – from single point denial of service attacks on networks to distributed denial of service beyond focusing just on Layer 7. In fact, DDoS has become so commercial that we’ve seen DDoS for hire  underground offerings for as low as $7 per hour with free one hour try before you buy option.  Couple this with a recent Ponemon report which highlighted that one hour of downtime for a merchant would equate to an average loss of $500,000 – what an amazing ROI for cybercriminals considering for the same amount of money I spend on coffee a day they can impact an organization’s bottom line by over $500,000! Traditional DDoS attacks focused on things like UDP Flood, Syn Flood and ICMP Flood targeting network resource exhaustion .     Modern day DDoS attacks such as Op Ababil, target the HTTP layer and above.   In recent DDoS attacks, reflection and amplification have been the weakness of choice such as the Network Time Protocol (NTP) attacks this past February or the DNS lookup attacks late last year. Cybercriminals continue to develop even more sophisticated botnets which can remain active longer before being discovered and they are hosting a botnet’s command-and-control center in a Tor-based network (where each node adds a layer of encryption as traffic passes) obfuscates the server’s location and makes it much harder to take it down.  Additionally, cybercriminals are building more resilient peer-to-peer botnets, populated by bots that talk to each other, with no central control point. If one bot (or peer) in a peer-to-peer botnet goes down, another will take over, extending the life of the botnet using business continuity techniques. This is exactly what we saw with the recent GameOver Zeus and CryptoLocker botnet disruption. These types of attacks make requests that are perceived to be legitimate; like attempting logins, performing search or downloading large files repeatedly which can easily bypass standard DDoS defenses such as firewalls, Intrusion Prevention Systems (IPS) and Web Application Firewalls (WAF). Additionally, modern day DDoS attacks are starting to abuse a business logic flaws rather than network resources on a more frequent basis as few organizations are focused on that aspect of their site for security detection. This is why it is becoming more critical to determine whether a request is legitimate or not and without understanding business logic used for processing the request this is incredibly challenging. In addition to what you are already doing today, you should consider focusing on the detection of business logic abuse by analyzing the behavior of users. You can achieve this by tracking every user/IP including pages accessed, the order of accesses, how quickly they moved between pages and other web paths taken by the same IP address. Further, if you analyze all web traffic it makes it possible to identify users or IP addresses displaying similar behavior. Users can then be clustered based on behavior enabling your administrators to find all endpoints involved in the attack. If this analysis happens in real-time you can identify more attackers as attacks happen. Take a look at what we saw with one of our Web Threat Detection customers. In a world where we will always have political, economic or ideological conflicts – and major sporting event, we should assume there will always be some type of cyber attack in parallel.  What is your game plan to defeat your competition? Source: https://blogs.rsa.com/world-cup-ddos-attacks/?utm_source=rss&utm_medium=rss&utm_campaign=world-cup-ddos-attacks

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The World Cup of DDoS Attacks

DDoS Attack Hit Hong Kong Democracy Voting Website

Hackers and cyber attacks are getting evil and worst nightmare for companies day-by-day. Just last week a group of hackers ruined the code-hosting and software collaboration platform, ‘Code Spaces’ by destroying their Amazon cloud server, complete data and its backup files too. Recently, the largest ever and most severe Distributed Denial of Service (DDoS) attacks in the history of the Internet has been recorded that hit the online democracy poll promoting opinion on the upcoming Hong Kong elections. PopVote, an online mock election operated by The University of Hong Kong’s Public Opinion Program, by Saturday recorded more than half a million votes in less than 30 hours in the unofficial referendum that provided permanent residents of Hong Kong to choose their preferred political representatives, that is suppose to be continued until June 29. However, the Chief Executive is officially chosen by a 1,200-member Election Committee under the current political system and drawn largely from pro-Beijing and business camps. On the first day of voting, China’s State Council denounced the voting as “ illegal and invalid .” Hong Kong’s chief executive, Leung Chun-ying, said all the proposals on the ballot are not complied with Hong Kong’s Basic Law, the territory’s de facto constitution. On Friday, Matthew Prince , the CEO and co-founder of San Francisco based CloudFlare, the web performance company maintaining the voting website, said that the DDoS attack on the Occupy Central’s voting platform was “ one of the largest and most persistent ” ever. According to Prince, the cybercriminals appeared to be using a network of compromised computers around the world to effectively disable the service of the voting website with an overwhelming amount of traffic. In such cases of attacks, the computer users who are exploited are usually unaware that their systems have been compromised. Prince also wrote on Twitter: “ Battling 300Gbps+ attack right now ,” on the first day that the vote began. Three hundred gigabits per second is an enormous amount of data to take down any huge servers. Also a DDoS attack last year on Spamhaus, a non-profit organisation that aims to help email providers filter out spams and other unwanted contents, is largely considered to be the biggest DDoS attack in the history, which the Cloudflare said the attack “almost broke the Internet.” Source: http://thehackernews.com/2014/06/largest-ddos-attack-hit-hong-kong.html

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DDoS Attack Hit Hong Kong Democracy Voting Website

DDoS Attack Puts Code Spaces Out of Business

Days after Feedly and Evernote were briefly forced offline by hackers demanding a ransom payment, a code-hosting service was run out of business by a similar scheme. CodeSpaces.com closed its doors this week, following a security breach that began with a distributed denial-of-service (DDoS) attack, and ended 12 hours later after an attempt to extort money from the company. No stranger to DDoS attacks, Code Spaces thought it could handle the situation, but the situation quickly spiraled out of control. On Tuesday, an unauthorized person—not believed to be employed by the site—gained access to Code Spaces’s Amazon EC2 control panel. When the team fought back, the hacker deleted “most of our data, backups, machine configurations and offsite backups,” the company said. “Code Spaces will not be able to operate beyond this point,” an online notice said, citing the price of resolving the issue, as well as the expected cost of refunding paying customers. This week’s attack “will put Code Spaces in [an] irreversible position both financially and in terms of ongoing credibility.” “All that we have to say at this point is how sorry we are to both customers and to the people who make a living at Code Spaces for the chain of events that lead us here,” the company said. Users can expect more details once Code Spaces sorts out its customers’ needs. Those who have stored data on the site can email support@codespaces.com with an account URL, and if you’re lucky, some remaining crumbs will be returned. For more, watch PCMag Live in the video below, which the Code Spaces dilemma. It’s been a banner month for DDoS attacks: Evernote suffered a blow last week, but was back on its feet within a few hours. Feedly wasn’t so lucky, however. The RSS service was hit twice in two days, though the company promised user data remained safe. Similarly, Ancestry.com just recovered today from a three-day bout of DDoS, in which the site was overloaded with traffic and crashed. No user information was compromised. Source: http://www.pcmag.com/article2/0,2817,2459765,00.asp

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DDoS Attack Puts Code Spaces Out of Business

Ancestry.com working to fully restore services following DDoS attack

The genealogy website Ancestry.com is working to fully restore its service after it was hit by a Distributed Denial of Service attack. Company spokeswoman Heather Erickson says it means ancestry.com was overwhelmed with bogus traffic Monday. “The attack was overloading our systems with massive amounts of traffic, but it did not access any data in servers,” Erickson said. The site, which has more than 2 million subscribers, was down for much of Tuesday and wasn’t fully operational Wednesday afternoon. Its Web team neutralized the DDoS attack and was working to fully restore services. “This has been a very frustrating and overwhelming experience, and our teams have been fantastic, working around the clock to make it neutralized,” Erickson said. Company officials are hoping to fully recover from the attack soon. Ancestry.com is posting updates on its Facebook and Twitter pages. Erickson said she doesn’t know where the attack came from. “These types of attacks aren’t unique to Ancestry. We know of many other companies that have been victim to these types of attacks. It’s unfortunate that any company has to go through something like this,” she said. The attack also impacted Ancestry.com’s sister site Find a Grave, though as of Wednesday afternoon it was back up, according to its Facebook page. Company officials said the sync and search feature in Family Tree Maker were still disabled until the site stability had been fully restored. They recommended people use the feature offline. Source: http://www.deseretnews.com/article/865605393/Ancestrycom-working-to-fully-restore-services-following-DDoS-attack.html

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Ancestry.com working to fully restore services following DDoS attack