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Security Leftovers

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Security News

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  • Thursday's security updates
  • Friday's security updates
  • Security advisories for Monday
  • Tox Is Your New Secure Chat Application

    In a previous article, I talked about the Ring communication app. The article proved quite popular and aside from drawing a bit of attention -- or maybe because of it -- that article also drew some criticism, including "What about Tox?" That’s a totally fair question, so here we are.

  • Florida Computer Programmer Arrested For Hacking

    A South Florida-based computer programmer made an appearance in the Southern District of Florida today after being arrested Sunday on charges of hacking into computers operated by the Linux Kernel Organization and the Linux Foundation, announced United States Attorney Brian J. Stretch and Federal Bureau of Investigation Special Agent in Charge John F. Bennett.

    The Linux Kernel Organization operates the website from which it distributes the Linux kernel software. The Linux Foundation is a separate nonprofit foundation that supports the website.

  • ​Florida Man Arrested for Allegedly Hacking Key Linux Servers

    A computer programmer from South Florida was arrested last week for allegedly hacking into servers related to the Linux operating system, the Department of Justice announced on Thursday. The case acts as a reminder that even the websites that host and distribute the operating systems our devices run on can be targeted by hackers.

Security Leftovers

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  • School Creates Own Security Hole; Tries To Have Concerned Parent Arrested For Hacking

    We've seen it so often over the years, it's probably now time to accept the fact that this will never change: when entities are presented evidence of security holes and breaches, far too often the initial reaction is to shoot the messenger.

    A school whose online student portal exposed a lot of sensitive data decided the best way to handle a concerned parent's repeated questions about how it was handling the problem was to file a criminal complaint against the parent. (via the Office of Inadequate Security)

    The details of the breach (since closed) were reported by independent journalist Sherrie Peif.

  • [Tor] A New Bridge Authority

    After ten years of volunteer maintenance of Tonga, Tor's bridge Authority—a piece of critical infrastructure within the Tor network—our colleague and friend, Lucky Green, a long time cypherpunk, and free speech and privacy advocate, has decided to step down from this role. Tonga's cryptographic keys will be destroyed this week. We are incredibly thankful to Lucky for all his support and selfless labour in maintaining a key component of our censorship circumvention efforts, grateful for the years we have spent working with him, and very sorry to see him go.

  • More Than 40% Of Attacks Abuse SSL Encryption

    There’s an important caveat about encrypted traffic from new research released this week: Encryption works so well that hackers are using it as cover.

    A new study from A10 and the Ponemon Institute found that 80% of respondents say their organizations have been the victim of a cyberattack or malicious insiders in the past year -- and 41% of the attacks have used encryption to evade detection. In addition, 75% say malware hidden within encrypted traffic is a risk to their organizations.

    At issue: The report found that SSL encryption not only hides data from would-be hackers but also from common security tools.

    “Hackers are using SSL encryption to slide by standard perimeter defenses,” says Chase Cunningham, director of cyber operations at A10 Networks.

  • The Cloud Security Alliance publishes its best practices for Big Data security

    Big Data is a boon for businesses worldwide, but the benefits come at a cost. The more data companies store, the more vulnerable they are to potential security breaches. And data breaches can be enormously expensive when they occur. IBM’s 2016 Cost of Data Breach report found that the average consolidated total cost of a data breach grew from $3.8 million to $4 million in the last year, which makes securing their data an important goal for any company that’s invested in it.

Redis Misconfiguration and Ransom

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Leftovers: Security

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  • Tor Addresses Important Bug Related to ReachableAddresses Option

    The Tor Project, through Nick Mathewson, is pleased to inform the Tor community about the release and general availability of yet another maintenance update to the Tor 0.2.8 stable series.

  • Emergency Service Window for Kolab Now

    We’re going to need to free up a hypervisor and put its load on other hypervisors, in order to pull out the one hypervisor and have some of its faulty hardware replaced — but there’s two problems;

    The hypervisor to free up has asserted required CPU capabilities most of the eligible targets do not have — this prevents a migration that does not involve a shut down, reconfiguration, and restart of the guest.

TheSSS 19.0 Linux Server Out with Kernel 4.4.14, Apache 2.4.23 & MariaDB 10.1.16

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TheSSS (The Smallest Server Suite) is one of the lightest Linux kernel-based operating systems designed to be used as an all-around server for home users, as well as small- and medium-sized businesses looking for a quick and painless way of distributing files across networks or to simply test some web-based software.

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Leftovers: Security

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Security Leftovers

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  • FBI detects breaches against two state voter systems

    The Federal Bureau of Investigation has found breaches in Illinois and Arizona's voter registration databases and is urging states to increase computer security ahead of the Nov. 8 presidential election, according to a U.S. official familiar with the probe.

    The official, speaking on condition of anonymity, said on Monday that investigators were also seeking evidence of whether other states may have been targeted.

    The FBI warning in an Aug. 18 flash alert from the agency's Cyber Division did not identify the intruders or the two states targeted.

    Reuters obtained a copy of the document after Yahoo News first reported the story Monday.

  • Russians Hacked Two U.S. Voter Databases, Say Officials [Ed: blaming without evidence again]

    Two other officials said that U.S. intelligence agencies have not yet concluded that the Russian government is trying to do that, but they are worried about it.

  • FBI Says Foreign Hackers Got Into Election Computers

    We've written probably hundreds of stories on just what a dumb idea electronic voting systems are, highlighting how poorly implemented they are, and how easily hacked. And, yet, despite lots of security experts sounding the alarm over and over again, you still get election officials ridiculously declaring that their own systems are somehow hack proof.

    And now, along comes the FBI to alert people that it's discovered at least two state election computer systems have been hacked already, and both by foreign entities.

  • Researchers Reveal SDN Security Vulnerability, Propose Solution

    Three Italian researchers have published a paper highlighting a security vulnerability in software-defined networking (SDN) that isn't intrinsic to legacy networks. It's not a showstopper, though, and they propose a solution to protect against it.

    "It" is a new attack they call Know Your Enemy (KYE), through which the bad guys could potentially collect information about a network, such as security tool configuration data that could, for example, reveal attack detection thresholds for network security scanning tools. Or the collected information could be more general in nature, such as quality-of-service or network virtualization policies.

  • NV Gains Momentum for a Secure DMZ

    When it comes to making the shift to network virtualization (NV) and software-defined networking (SDN), one of the approaches gaining momentum is using virtualization technology to build a secure demilitarized zone (DMZ) in the data center.

    Historically, there have been two major drawbacks to deploying firewalls as a secure mechanism inside a data center. The first is the impact a physical hardware appliance has on application performance once another network hop gets introduced. The second is the complexity associated with managing the firewall rules.

    NV technologies make it possible to employ virtual firewalls that can be attached to specific applications and segregate them based on risk. This is the concept of building a secure DMZ in the data center. The end result is that the virtual firewall is not only capable of examining every packet associated with a specific application, but keeping track of what specific firewall rules are associated with a particular application becomes much simpler.

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More in Tux Machines

Linux 4.8.4

I'm announcing the release of the 4.8.4 kernel. And yeah, sorry about the quicker releases, I'll be away tomorrow and as they seem to have passed all of the normal testing, I figured it would be better to get them out earlier instead of later. And I like releasing stuff on this date every year... All users of the 4.8 kernel series must upgrade. The updated 4.8.y git tree can be found at: git:// linux-4.8.y and can be browsed at the normal git web browser: Read more Also: Linux 4.7.10 Linux 4.4.27

New Releases: Budgie, Solus, SalentOS, and Slackel

  • Open-Source Budgie Desktop Sees New Release
    The pet parakeet of the Linux world, Budgie has a new release available for download. in this post we lookout what's new and tell you how you can get it.
  • Solus Linux Making Performance Gains With Its BLAS Configuration
    - Those making use of the promising Solus Linux distribution will soon find their BLAS-based workloads are faster. Solus developer Peter O'Connor tweeted this week that he's found some issues with the BLAS linking on the distribution and he's made fixes for Solus. He also mentioned that he uncovered these BLAS issues by using our Phoronix Test Suite benchmarking software.
  • SalentOS “Luppìu” 1.0 released!
    With great pleasure the team announces the release of SalentOS “Luppìu” 1.0.
  • Slackel "Live kde" 4.14.21
    This release is available in both 32-bit and 64-bit architectures, while the 64-bit iso supports booting on UEFI systems. The 64-bit iso images support booting on UEFI systems. The 32-bit iso images support both i686 PAE SMP and i486, non-PAE capable systems. Iso images are isohybrid.

Security News

  • Free tool protects PCs from master boot record attacks [Ed: UEFI has repeatedly been found to be both a detriment to security and enabler of Microsoft lock-in]
    Cisco's Talos team has developed an open-source tool that can protect the master boot record of Windows computers from modification by ransomware and other malicious attacks. The tool, called MBRFilter, functions as a signed system driver and puts the disk's sector 0 into a read-only state. It is available for both 32-bit and 64-bit Windows versions and its source code has been published on GitHub. The master boot record (MBR) consists of executable code that's stored in the first sector (sector 0) of a hard disk drive and launches the operating system's boot loader. The MBR also contains information about the disk's partitions and their file systems. Since the MBR code is executed before the OS itself, it can be abused by malware programs to increase their persistence and gain a head start before antivirus programs. Malware programs that infect the MBR to hide from antivirus programs have historically been known as bootkits -- boot-level rootkits. Microsoft attempted to solve the bootkit problem by implementing cryptographic verification of the bootloader in Windows 8 and later. This feature is known as Secure Boot and is based on the Unified Extensible Firmware Interface (UEFI) -- the modern BIOS.
  • DDOS Attack On Internet Infrastructure
    I hope somebody's paying attention. There's been another big DDOS attack, this time against the infrastructure of the Internet. It began at 7:10 a.m. EDT today against Dyn, a major DNS host, and was brought under control at 9:36 a.m. According to Gizmodo, which was the first to report the story, at least 40 sites were made unreachable to users on the US East Coast. Many of the sites affected are among the most trafficed on the web, and included CNN, Twitter, PayPal, Pinterest and Reddit to name a few. The developer community was also touched, as GitHub was also made unreachable. This event comes on the heels of a record breaking 620 Gbps DDOS attack about a month ago that brought down security expert Brian Krebs' website, KrebsonSecurity. In that attack, Krebs determined the attack had been launched by botnets that primarily utilized compromised IoT devices, and was seen by some as ushering in a new era of Internet security woes.
  • This Is Why Half the Internet Shut Down Today [Update: It’s Getting Worse]
    Twitter, Spotify and Reddit, and a huge swath of other websites were down or screwed up this morning. This was happening as hackers unleashed a large distributed denial of service (DDoS) attack on the servers of Dyn, a major DNS host. It’s probably safe to assume that the two situations are related.
  • Major DNS provider Dyn hit with DDoS attack
    Attacks against DNS provider Dyn continued into Friday afternoon. Shortly before noon, the company said it began "monitoring and mitigating a DDoS attack" against its Dyn Managed DNS infrastructure. The attack may also have impacted Managed DNS advanced service "with possible delays in monitoring."
  • What We Know About Friday’s Massive East Coast Internet Outage
    Friday morning is prime time for some casual news reading, tweeting, and general Internet browsing, but you may have had some trouble accessing your usual sites and services this morning and throughout the day, from Spotify and Reddit to the New York Times and even good ol’ For that, you can thank a distributed denial of service attack (DDoS) that took down a big chunk of the Internet for most of the Eastern seaboard. This morning’s attack started around 7 am ET and was aimed at Dyn, an Internet infrastructure company headquartered in New Hampshire. That first bout was resolved after about two hours; a second attack began just before noon. Dyn reported a third wave of attacks a little after 4 pm ET. In all cases, traffic to Dyn’s Internet directory servers throughout the US—primarily on the East Coast but later on the opposite end of the country as well—was stopped by a flood of malicious requests from tens of millions of IP addresses disrupting the system. Late in the day, Dyn described the events as a “very sophisticated and complex attack.” Still ongoing, the situation is a definite reminder of the fragility of the web, and the power of the forces that aim to disrupt it.
  • Either IoT will be secure or the internet will be crippled forever
    First things first a disclaimer. I neither like nor trust the National Security Agency (NSA). I believe them to be mainly engaged in economic spying for the corporate American empire. Glenn Greenwald has clearly proven that in his book No Place to Hide. At the NSA, profit and power come first and I have no fucking clue as to how high they prioritize national security. Having said that, the NSA should hack the Internet of (insecure) Things (IoT) to death. I know Homeland Security and the FBI are investigating where the DDoS of doomsday proportions is coming from and the commentariat is already screaming RUSSIA! But it is really no secret what is enabling this clusterfuck. It’s the Mirai botnet. If you buy a “smart camera” from the Chinese company Hangzhou XiongMai Technologies and do not change the default password, it will be part of a botnet five minutes after you connect it to the internet. We were promised a future where we would have flying cars but we’re living in a future where camera’s, light-bulbs, doorbells and fridges can get you in serious trouble because your home appliances are breaking the law.
  • IoT at the Network Edge
    Fog computing, also known as fog networking, is a decentralized computing infrastructure. Computing resources and application services are distributed in logical, efficient places at any points along the connection from the data source (endpoint) to the cloud. The concept is to process data locally and then use the network for communicating with other resources for further processing and analysis. Data could be sent to a data center or a cloud service. A worthwhile reference published by Cisco is the white paper, "Fog Computing and the Internet of Things: Extend the Cloud to Where the Things Are."
  • Canonical now offers live kernel patching for Ubuntu 16.04 LTS users
    Canonical has announced its ‘Livepatch Service’ which any user can enable on their current installations to eliminate the need for rebooting their machine after installing an update for the Linux kernel. With the release of Linux 4.0, users have been able to update their kernel packages without rebooting, however, Ubuntu will be the first distribution to offer this feature for free.
  • ​The Dirty Cow Linux bug: A silly name for a serious problem
    Dirty Cow is a silly name, but it's a serious Linux kernel problem. According to the Red Hat bug report, "a race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only memory mappings. An unprivileged local user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system."
  • Ancient Privilege Escalation Bug Haunts Linux
  • October 21, 2016 Is Dirty COW a serious concern for Linux?
  • There is a Dirty Cow in Linux
  • Red Hat Discovers Dirty COW Archaic Linux Kernel Flaw Exploited In The Wild
  • Linux kernel bug being exploited in the wild
  • Update Linux now: Critical privilege escalation security flaw gives hackers full root access
  • Linux kernel bug: DirtyCOW “easyroot” hole and what you need to know
  • 'Most serious' Linux privilege-escalation bug ever discovered
  • New 'Dirty Cow' vulnerability threatens Linux systems
  • Serious Dirty Cow Linux Vulnerability Under Attack
  • Easy-to-exploit rooting flaw puts Linux PCs at risk
  • Linux just patched a vulnerability it's had for 9 years
  • Dirty COW Linux vulnerability has existed for nine years
  • 'Dirty Cow' Linux Vulnerability Found
  • 'Dirty Cow' Linux Vulnerability Found After Nine Years
  • FakeFile Trojan Opens Backdoors on Linux Computers, Except openSUSE
    Malware authors are taking aim at Linux computers, more precisely desktops and not servers, with a new trojan named FakeFile, currently distributed in live attacks. Russian antivirus vendor Dr.Web discovered this new trojan in October. The company's malware analysts say the trojan is spread in the form of an archived PDF, Microsoft Office, or OpenOffice file.

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