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Security

IPFire 2.19 Linux Firewall Distribution Switches to Unbound as DNS Proxy

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GNU
Linux
Security

On the first day of November 2016, Michael Tremer from the IPFire project, an open source, professional, secure and hardened Linux-based firewall distribution, proudly announced the release of IPFire 2.19 Core Update 106.

IPFire 2.19 Core Update 106 is the latest stable release of the Linux firewall OS, and it looks like it implements a new DNS proxy, namely Unbound, which replaces the Dnsmasq DNS forwarder and DHCP server used in previous releases. The decision was made because of the recent DNSSEC implementation by default in the distribution, which proves to offer better DNSSEC reliability, enhanced features, such as import of static leases, and improved performance.

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Security News

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Security
  • Security updates for Tuesday
  • Let's Automate Let's Encrypt

    HTTPS is a small island of security in this insecure world, and in this day and age, there is absolutely no reason not to have it on every Web site you host. Up until last year, there was just a single last excuse: purchasing certificates was kind of pricey. That probably was not a big deal for enterprises; however, if you routinely host a dozen Web sites, each with multiple subdomains, and have to pay for each certificate out of your own dear pocket—well, that quickly could become a burden.

    Now you have no more excuses. Enter Let's Encrypt a free Certificate Authority that officially left Beta status in April 2016.

    Aside from being totally free, there is another special thing about Let's Encrypt certificates: they don't last long. Currently all certificates issued by Let's Encrypt are valid for only 90 days, and you should expect that someday this term will become even shorter. Although this short lifespan definitely creates a much higher level of security, many people consider it as an inconvenience, and I've seen people going back from using Let's Encrypt to buying certificates from commercial certificate authorities for this very reason.

  • Aporeto Announces Trireme, an Open-Source Security Project for Kubernetes and Docker
  • Trireme Open-Source Security Project Debuts for Kubernetes, Docker

    Network isolation isn't the only way to secure application containers anymore, so Aporeto unveils a new security model for containers running in Docker or as part of Kubernetes cluster.
    Dimitri Stiliadis co-founded software-defined networking (SDN) vendor Nuage Networks in 2011 in a bid to help organizations improve agility and security via network isolation. In the container world, however, network isolation alone isn't always enough to provide security, which is why Stiliadis founded Aporeto in August 2015. On Nov. 1, Aporeto announced its open-source Trireme project, providing a new security model for containers running in Docker or as part of a Kubernetes cluster.

Security Leftovers

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Security
  • DDoS defenses emerging from Homeland Security

    Government, academic, and private-sector officials are collaborating on new ways to prevent and mitigate distributed denial-of-service (DDoS) attacks, based on research years in the making but kicked into high gear by the massive takedown this month of domain name system provider Dyn.

  • US DMCA rules updated to give security experts legal backing to research

    The US government has updated and published a new list of exemptions to the Digital Millennium Copyright Act, a move perhaps long-overdue which will protect cybersecurity professionals from prosecution when reverse-engineering products for research purposes.

    On October 28, the US Copyright Office and the Librarian of Congress published the updated rules on the federal register.

    The DMCA regulations now include exceptions relating to security research and vehicle repair relevant to today's cybersecurity field. For the next two years, researchers can circumvent digital access controls, reverse engineer, access, copy, and manipulate digital content which is protected by copyright without fear of prosecution -- within reason.

  • Stop being the monkey's paw

    This story got me thinking about security, how we ask questions and how we answer questions. What if we think about this in the context of application security specifically for this example. If someone was to ask the security the question “does this code have a buffer overflow in it?” The person I asked for help is going to look for buffer overflows and they may or may not notice that it has a SQL injection problem. Or maybe it has an integer overflow or some other problem. The point is that's not what they were looking for so we didn't ask the right question. You can even bring this little farther and occasionally someone might ask the question “is my system secure” the answer is definitively no. You don't even have to look at it to answer that question and so they don't even know what to ask in reality. They are asking the monkey paw to bring them their money, it's going to do it, but they're not going to like the consequences.

  • Tyfone looks to open-source to solve IoT security issues

    It came as no surprise to Tyfone CEO Siva Narendra when tens of millions of Internet connected devices were able to bring down the Web during a coordinated distributed denial of service attack on Oct. 21.

    Narendra's Portland-based company Tyfone has been working on digital security platforms to safeguard identity and transactions of people and things for years.

    Narendra says mobile devices in conjunction with the cloud have brought new levels of productivity to our lives. Internet of Things devices (the common name given to these connected items) are poised to bring even greater levels of productivity and cost-savings to businesses, and safety and convenience to our everyday lives.

  • Google just disclosed a major Windows bug — and Microsoft isn’t happy

    Today, Google’s Threat Analysis group disclosed a critical vulnerability in Windows in a public post on the company’s security blog. The bug itself is very specific — allowing attackers to escape from security sandboxes through a flaw in the win32k system — but it’s serious enough to be categorized as critical, and according to Google, it’s being actively exploited. As a result, Google went public just 10 days after reporting the bug to Microsoft, before a patch could be coded and deployed. The result is that, while Google has already deployed a fix to protect Chrome users, Windows itself is still vulnerable — and now, everybody knows it.

    Google’s disclosure provides only a general description of the bug, giving users enough information to recognize a possible attack without making it too easy for criminals to replicate. Exploiting the bug also depends on a separate exploit in Adobe Flash, for which the company has also released a patch. Still, simply knowing that the bug exists will likely spur a lot of criminals to look for viable ways to exploit it against computers that have yet to update Flash.

  • AtomBombing: A Code Injection that Bypasses Current Security Solutions

    Our research team has uncovered new way to leverage mechanisms of the underlying Windows operating system in order to inject malicious code. Threat actors can use this technique, which exists by design of the operating system, to bypass current security solutions that attempt to prevent infection. We named this technique AtomBombing based on the name of the underlying mechanism that this technique exploits.

    AtomBombing affects all Windows version. In particular, we tested this against Windows 10.

  • Disclosing vulnerabilities to protect users

    On Friday, October 21st, we reported 0-day vulnerabilities — previously publicly-unknown vulnerabilities — to Adobe and Microsoft. Adobe updated Flash on October 26th to address CVE-2016-7855; this update is available via Adobe's updater and Chrome auto-update.

    After 7 days, per our published policy for actively exploited critical vulnerabilities, we are today disclosing the existence of a remaining critical vulnerability in Windows for which no advisory or fix has yet been released. This vulnerability is particularly serious because we know it is being actively exploited.

    The Windows vulnerability is a local privilege escalation in the Windows kernel that can be used as a security sandbox escape. It can be triggered via the win32k.sys system call

  • The next president will face a cybercrisis within 100 days, predicts report

    The next president will face a cybercrisis in the first 100 days of their presidency, research firm Forrester predicts in a new report.

    The crisis could come as a result of hostile actions from another country or internal conflict over privacy and security legislation, said Forrester analyst Amy DeMartine, lead author of the firm's top cybersecurity risks for 2017 report, due to be made public Tuesday.

    History grades a president's first 100 days as the mark of how their four-year term will unfold, so those early days are particularly precarious, said DeMartine. The new commander in chief will face pressure from foreign entities looking to embarrass them early on, just as U.S. government agencies jockey for position within the new administration, she said.

  • Hackforums Shutters Booter Service Bazaar

    Perhaps the most bustling marketplace on the Internet where people can compare and purchase so-called “booter” and “stresser” subscriptions — attack-for-hire services designed to knock Web sites offline — announced last week that it has permanently banned the sale and advertising of these services.

    On Friday, Oct. 28, Jesse LaBrocca — the administrator of the popular English-language hacking forum Hackforums[dot]net — said he was shutting down the “server stress testing” (SST) section of the forum. The move comes amid heightened public scrutiny of the SST industry, which has been linked to several unusually powerful recent attacks and is responsible for the vast majority of denial-of-service (DOS) attacks on the Internet today.

Security News

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Security
  • Security advisories for Monday
  • Tug of war between SELinux and Chrome Sandbox, who's right?

    Over the years, people have wanted to use SELinux to confine the web browser. The most common vulnerabilty for a desktop user is attacks caused by bugs in the browser. A user goes to a questionable web site, and the web site has code that triggers a bug in the browser that takes over your machine. Even if the browser has no blogs, you have to worry about helper plugins like flash-plugin, having vulnerabilities.

  • Trick or Treat! Google issues warning of critical Windows vulnerability in wild

    Recently, Google’s Threat Analysis Group discovered a set of zero-day vulnerabilities in Adobe Flash and the Microsoft Windows kernel that were already being actively used by malware attacks against the Chrome browser. Google alerted both Adobe and Microsoft of the discovery on October 21, and Adobe issued a critical fix to patch its vulnerability last Friday. But Microsoft has yet to patch a critical bug in the Windows kernel that allows these attacks to work—which prompted Google to publicly announce the vulnerabilities today.

    “After 7 days, per our published policy for actively exploited critical vulnerabilities, we are today disclosing the existence of a remaining critical vulnerability in Windows for which no advisory or fix has yet been released,” wrote Neel Mehta and Billy Leonard of Google’s Threat Analysis Group.”This vulnerability is particularly serious because we know it is being actively exploited.”

    The bug being exploited could allow an attacker to escape from Windows’ security sandbox. The sandbox, which normally allows only user-level applications to execute, lets programs execute without needing administrator access while isolating what it can access on the local system through a set of policies.

    But by using a specific type of call to a legacy support Windows system library generally used for the graphics subsystem—win32k.sys—malicious code can escalate its privileges and execute outside of the sandbox, allowing it to execute code with full access to the Windows environment. Win32k.sys has been a problem before: Microsoft issued a warning back in June about a similar privilege escalation problem that had not yet been exploited, and another arrived in August.

Security News

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Security
  • DDoS of SN Underway [Updated]

    Right, so there's currently a DDoS of our site specifically happening. Part of me is mildly annoyed, part of me is proud that we're worth DDoS-ing now. Since it's only slowing us down a bit and not actually shutting us down, I'm half tempted to just let them run their botnet time out. I suppose we should tweak the firewall a bit though. Sigh, I hate working on weekends.

  • AtomBomb: The New Zero-Day Windows Exploit Microsoft Can't Fix?

    There's a new zero-day Microsoft Windows exploit in the wild by the name of AtomBomb, and Microsoft may not be able to fix it.

  • New code injection method affects all Windows versions [iophk: “watch the ‘news’ play this one down or ignore it; full product recall is needed at this point”]

    Researchers at cyber-security firm enSilo have discovered a method of code injection in all versions of Windows that cannot be eliminated as it is part of the operating system design.

    The design flaw allows for code injection and is dubbed AtomBomb as it makes use of the system's atom tables.

    As Microsoft defines it, "An atom table is a system-defined table that stores strings and corresponding identifiers. An application places a string in an atom table and receives a 16-bit integer, called an atom, that can be used to access the string. A string that has been placed in an atom table is called an atom name."

    In a blog post describing the method of attack, enSilo's Tal Liberman wrote: "Our research team has uncovered a new way to leverage mechanisms of the underlying Windows operating system in order to inject malicious code. Threat actors can use this technique, which exists by design of the operating system, to bypass current security solutions that attempt to prevent infection."

  • British parliament members urge Obama to halt hacking suspect’s US extradition

    This week, culture minister Matt Hancock and more than 100 fellow MPs (Members of Parliament) have signed a letter calling on president Barack Obama to block Lauri Love's extradition to the US to face trial over the alleged hacking of the US missile defence agency, the FBI, and America's central bank.

    Love—an Asperger's syndrome sufferer from Stradishall, Suffolk—was told in September at a Westminster Magistrates' Court hearing that he was fit to be extradited to the US to face trial in that country. The 31-year-old faces up to 99 years in prison in the US if convicted. According to his lawyers, Love has said he fears for his life.

Security Leftovers

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Security

Security News

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Security
  • Bug Bounty Hunter Launches Accidental DDoS Attack on 911 Systems via iOS Bug

    The Maricopa County Sheriff's Office Cyber Crimes Unit arrested Meetkumar Hiteshbhai Desai, an 18-year-old teenager from the Phoenix area, for flooding the 911 emergency system with hang-up calls.

    According to a press release from the Maricopa County Sheriff's Office, Desai created a JavaScript exploit, which he shared on Twitter and other websites with his friends.

    People accessing Desai's link from their iPhones saw their phone automatically dial and redial 911.

  • Dyn DDoS attack exposes soft underbelly of the cloud

    It's apparently possible that a DDoS attack can be big enough to break the internet -- or, as shown in the attack against ISP Dyn, at least break large parts of it.

    The DDoS attack against Dyn that began Friday went far past taking down Dyn's servers. Beyond the big-name outages, organizations could not access important corporate applications or perform critical business operations.

  • [Older] ​The Dyn report: What we know so far about the world's biggest DDoS attack

    First, there was nothing -- nothing -- surprising about this attack. As Paul Mockapetris, creator of the Domain Name System (DNS), said, "The successful DDoS attack on DYN is merely a new twist on age-old warfare. ... Classic warfare can be anticipated and defended against. But warfare on the internet, just like in history, has changed. So let's take a look at the asymmetrical battle in terms of the good guys (DYN) and the bad guys (Mirai botnets), and realize and plan for more of these sorts of attacks."

  • Incident Report: Inadvertent Private Repository Disclosure

    On Thursday, October 20th, a bug in GitHub’s system exposed a small amount of user data via Git pulls and clones. In total, 156 private repositories of GitHub.com users were affected (including one of GitHub's). We have notified everyone affected by this private repository disclosure, so if you have not heard from us, your repositories were not impacted and there is no ongoing risk to your information.

    This was not an attack, and no one was able to retrieve vulnerable data intentionally. There was no outsider involved in exposing this data; this was a programming error that resulted in a small number of Git requests retrieving data from the wrong repositories.

    Regardless of whether or not this incident impacted you specifically, we want to sincerely apologize. It’s our responsibility not only to keep your information safe but also to protect the trust you have placed in us. GitHub would not exist without your trust, and we are deeply sorry that this incident occurred.

Security News

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Security
  • Friday's security advisories
  • Here's How to Protect Linux Servers & Android Phones from Dirty COW Vulnerability
  • The Inevitability of Being Hacked

    The last attempted hack came 5 minutes ago, using the username root and the password root.

  • New Windows code injection method could let malware bypass detection

    Security researchers have discovered a new way that allows malware to inject malicious code into other processes without being detected by antivirus programs and other endpoint security systems.

    The new method was devised by researchers from security firm Ensilo who dubbed it AtomBombing because it relies on the Windows atom tables mechanism. These special tables are provided by the operating system and can be used to share data between applications.

    "What we found is that a threat actor can write malicious code into an atom table and force a legitimate program to retrieve the malicious code from the table," Ensilo researcher Tal Liberman said in a blog post. "We also found that the legitimate program, now containing the malicious code, can be manipulated to execute that code."

    This new code-injection technique is not currently detected by antivirus and endpoint security programs because it is based on legitimate functionality, according to Liberman. Also, the atom tables mechanism is present in all Windows versions and it's not something that can be patched because it's not a vulnerability.

  • Of course smart homes are targets for hackers

    The Wirecutter, an in-depth comparative review site for various electrical and electronic devices, just published an opinion piece on whether users should be worried about security issues in IoT devices. The summary: avoid devices that don't require passwords (or don't force you to change a default and devices that want you to disable security, follow general network security best practices but otherwise don't worry - criminals aren't likely to target you.

  • OpenStack Security Project Aims to Protect the Open-Source Cloud

    The OpenStack Security project adds new tools and processes to help secure OpenStack technologies. The project technical leader offers insight on the program.
    Security is such a critical element of the open-source OpenStack cloud platform that there is an entire project—the OpenStack Security project—dedicated to the task of helping protect OpenStack technologies.

    In a well-attended session at the OpenStack Summit in Barcelona, Spain, on Oct. 27, Rob Clark, the project technical leader of the OpenStack Security project, detailed the group's most recent efforts.

Security News

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Security
  • GNU Tar "Pointy Feather" Vulnerability Disclosed (CVE-2016-6321)

    Last week was the disclosure of the Linux kernel's Dirty COW vulnerability while the latest high-profile open-source project going public with a new security CVE is GNU's Tar. Tar CVE-2016-6321 is also called POINTYFEATHER according to the security researchers.

    The GNU Pointy Feather vulnerability comes down to a pathname bypass on the Tar extraction process. Regardless of the path-name(s) specified on the command-line, the attack allows for file and directory overwrite attacks using specially crafted tar archives.

  • Let’s Encrypt and The Ford Foundation Aim To Create a More Inclusive Web

    Let’s Encrypt was awarded a grant from The Ford Foundation as part of its efforts to financially support its growing operations. This is the first grant that has been awarded to the young nonprofit, a Linux Foundation project which provides free, automated and open SSL certificates to more than 13 million fully-qualified domain names (FQDNs).

    The grant will help Let’s Encrypt make several improvements, including increased capacity to issue and manage certificates. It also covers costs of work recently done to add support for Internationalized Domain Name certificates.

    “The people and organizations that Ford Foundation serves often find themselves on the short end of the stick when fighting for change using systems we take for granted, like the Internet,” Michael Brennan, Internet Freedom Program Officer at Ford Foundation, said. “Initiatives like Let’s Encrypt help ensure that all people have the opportunity to leverage the Internet as a force for change.”

  • How security flaws work: SQL injection

    Thirty-one-year-old Laurie Love is currently staring down the possibility of 99 years in prison. After being extradited to the US recently, he stands accused of attacking systems belonging to the US government. The attack was allegedly part of the #OpLastResort hack in 2013, which targeted the US Army, the US Federal Reserve, the FBI, NASA, and the Missile Defense Agency in retaliation over the tragic suicide of Aaron Swartz as the hacktivist infamously awaited trial.

  • How To Build A Strong Security Awareness Program

    At the Security Awareness Summit this August in San Francisco, a video clip was shown that highlights the need to develop holistic security awareness. The segment showed an employee being interviewed as a subject matter expert in his office cubicle. Unfortunately, all his usernames and passwords were on sticky notes behind him, facing the camera and audience for all to see.

    I bring this story up not to pick on this poor chap but to highlight the fact that security awareness is about human behavior, first and foremost. Understand that point and you are well on your way to building a more secure culture and organization.

    My work as director of the Security Awareness Training program at the SANS Institute affords me a view across hundreds of organizations and hundreds of thousands of employees trying to build a more secure workforce and society. As we near the end of this year's National Cyber Security Awareness Month, here are two tips to incorporate robust security awareness training into your organization and daily work.

FOSS Security

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OSS
Security
  • European Parliament votes to extend Free Software security audits

    Remember how I raised €1 million to demonstrate security and freedom aren’t opposites? Well here’s what happened next and how we are going to move forward with this.

    In 2014, two major security vulnerabilities, Heartbleed and Shellshock, were discovered. Both concerned Free Software projects that are widely used throughout the Internet, on computers, tablets, and smartphones alike. My colleague Max Andersson from the Swedish Greens and I proposed a so-called “pilot project”, the Free and Open Source Software Audit (FOSSA).

  • Princeton Upskills U on Open Source Security

    During Wednesday's Upskill U course, lecturer Gary Sockrider, principal security technologist for Arbor Networks , explained the history of DDoS attacks, case studies of recent attacks, and the business impact of these security threats. DDoS attacks not only raise operational expenses, but can also negatively affect an organization's brand, and result in loss of revenue and customers. (Listen to Security: Tackling DDoS.)

    "Having visibility is key, you can't stop something you can't see. Having good visibility across your own network is vital in finding and stopping these attacks," said Sockrider. "You can leverage common tools and technology that are already available on the network equipment you own today such as flow technologies, looking at SIP logs … Obviously you'll want to get to some specific intelligent DDoS mitigation in the end."

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More in Tux Machines

GNOME 3.25.3 Released, GTK Development

  • GNOME 3.25.3 Now Available
    GNOME 3.25.3 is now available as the latest stepping stone towards September's release of GNOME 3.26.
  • GNOME 3.26 Desktop Environment Development Continues, New Milestone Is Out Now
    Matthias Clasen has informed the community via an email announcement that the third milestone of the upcoming GNOME 3.26 desktop environment is now ready for public testing. After a one day delay, GNOME 3.25.3 is now available, and it's the third development release of the upcoming GNOME 3.26 desktop environment that could be used by default in popular GNU/Linux distributions, such as the Ubuntu 17.10 (Artful Aardvark) or Fedora 27, both due for release later this year. It brings a bunch of updates and new features to several of its components and apps.
  • Eight years since first release and still no usable theme?
    Well, let me be frank. Ever since gtk-3.0 I've been skeptical of it, especially of the theming aspect. In gtk-2 we had (and still have) many themes ranging from trash to excellent, almost every kind of taste could have been satisfied. Not so in gtk-3. First issue is constant changes to theming API, meaning that despite there being hundreds of themes, only handful of them actually work right :( And among them, I still have yet to find one that would work on my fairly usual 15,6″ laptop screen with 1366×768 px resolution. Basicaly I have two issues.

Microsoft Dirty Tricks and Entryism

Security: Windows Causes Chaos, Routers With Back Doors, Patching of UNIX/Linux

  • Traffic lights in Australia hit by WannaCry ransomware [Ed: Well, who uses Microsoft Windows to manage traffic?!?!]

    Radio station 3aw reports that dozens of pole based traffic calming measures are infected and that this came as a surprise to the local minister and Road Safety Camera Commissioner when radio reporters told him about it.

  • Honda shuts down factory after finding NSA-derived Wcry in its networks
    The WCry ransomware worm has struck again, this time prompting Honda Company to halt production in one of its Japan-based factories after finding infections in a broad swath of its computer networks, according to media reports. The automaker shut down its Sayama plant northwest of Tokyo on Monday after finding that WCry had affected networks across Japan, North America, Europe, China, and other regions, Reuters reported Wednesday. Discovery of the infection came on Sunday, more than five weeks after the onset of the NSA-derived ransomware worm, which struck an estimated 727,000 computers in 90 countries. The mass outbreak was quickly contained through a major stroke of good luck. A security researcher largely acting out of curiosity registered a mysterious domain name contained in the WCry code that acted as a global kill switch that immediately halted the self-replicating attack.
  • GhostHook: CyberArk finds new way to attack Windows 10

    Researchers at CyberArk Labs have discovered a new way of gaining access to the innards of Windows 10 64-bit systems that can bypass existing safeguards, including the kernel patch protection known as PatchGuard that Microsoft developed to improve system security.

  • John McAfee claims 'every router in America has been compromised' by hackers and spies

    Technology pioneer John McAfee believes that every home internet router in America is wide open to cyberattacks by criminal hackers and intelligence agencies. He makes the claim speaking after revelations from WikiLeaks that the Central Intelligence Agency (CIA) targets the devices.

  • 'Stack Clash' Smashed Security Fix in Linux
    What's old is new again: an exploit protection mechanism for a known flaw in the Linux kernel has fallen to a new attack targeting an old problem.
  • Continuous defence against open source exploits
    Register for next month's expo for the public sector DevOps community to hear key speakers from the front line of public sector digital transformation and see the latest technologies at first hand. Andrew Martin, DevOps lead in a major government department, has been added to the line-up of speakers to talk about the importance of getting the approach to security right with open source software.
  • IoT goes nuclear: creating a ZigBee chain reaction [iophk: "use 6lowpan instead"]

    If plugging in an infected bulb is too much hassle, the authors also demonstrate how to take over bulbs by war-driving around in a car, or by war-flying a drone.

  • Passengers given a freight as IT glitch knocks out rail ticket machines

    The network of machines are operated by the individual franchises, but share a common infrastructure from German software company Scheidt and Bachmann.

OpenBSD Development News

  • OpenBSD now has Trapsleds to make life harder for ROPers
  • Historical: My first OpenBSD Hackathon

    I was a nobody. With some encouragement, enough liquid courage to override my imposter syndrome, and a few hours of mentoring, I'm now doing big projects. The next time you're sitting at a table with someone new to your field, ask yourself: how can you encourage them? You just might make the world better.

    Thank you Dale. And thank you Theo.

  • Finish the link-kit job
    We've had the linkkit components in the tree for a while, but it has taken nearly 20 rounds between rpe/tb/myself to get the last few bits finished. So that the link kit is cleanly used at reboot, but also fits in with the practices kernel developers follow.