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Linux Is Not As Safe As You Think (betanews.com)

BrianFagioli writes via BetaNews: Would you be surprised if I told you that threat methods for Linux increased an astonishing 300 percent in 2016, while Microsoft's operating systems saw a decrease? Well, according to a new report, that is true. Does this mean Linux is unsafe? No way, Jose! There are some important takeaways here. Microsoft's Windows operating systems are still the most targeted platforms despite the year over year decline -- far beyond Linux. Also, just because there is an increase in malware attack methods doesn't necessarily mean that more systems will be infected. Let us not forget that it is easier to find a vulnerability with open source too; Microsoft largely uses closed source code. "At the end of November, criminals with other variants of the same Linux malware unleashed devastating attacks against DSL routers of Telekom customers. 900,000 devices were taken down. In October, the Mirai code appeared freely available on the Internet. Since then, the AV-TEST systems have been investigating an increasing number of samples with spikes at the end of October, November and beginning of December," says AV Test of the Mirai malware. "Other Linux malware, such as the Tsunami backdoor, has been causing trouble for several years now and can be easily modified for attacks against IoT devices. The detection systems of AV-TEST first detected the Tsunami malicious code in the year 2003. Although, at that time, practically no IoT devices existed, the Linux backdoor already offered attack functions which even today would be suitable for virtually unprotected attacks on routers: In this manner, Tsunami can download additional malicious code onto infected devices and thus make devices remote controllable for criminals. But the old malware can also be used for DDoS attacks. The Darlloz worm, known since 2013, as well as many other Linux and Unix malware programs, have similar attack patterns which AV-TEST has been detecting and analyzing for years."

20 of 237 comments (clear)

  1. Ponderosa Puff by Spy+Handler · · Score: 5, Funny

    didn't take no guff
    water ought to be clean and free
    so he fought the fight and he set things right
    with his openBSD

    1. Re: Ponderosa Puff by dougdonovan · · Score: 3, Informative

      linux is only as safe as you make it. besides, it beats the hell out of windows.

  2. Percentage change by DavidJSimpson · · Score: 5, Insightful

    Baby Timmy grew 300% but Uncle Bob shrunk 5%. Who is bigger?

  3. Fuchs ache! by Epsillon · · Score: 5, Insightful

    This isn't a "Linux problem," it's a "proprietary vendors using Linux and not passing on patches in a timely manner because money problem."
    Linux is exactly as safe as I think it is, though. That's why I'm careful to lock it down just as I would any other system.

    --
    Resistance is futile. Reactance buggers it up.
    1. Re:Fuchs ache! by MightyMartian · · Score: 4, Informative

      It's why I roll my own routers with a long term support version of the distro I'm using, and why I run updates on a strict schedule. If you're buying some low-end shitty D-Link router, well you got what you paid for; a Linux box that's virtually never updated, that probably is running old versions of the kernel and other userland tools right out of the box. It's literally like booting a three year old version of unupdated Ubuntu and decrying the vulnerabilities of Linux.

      --
      The world's burning. Moped Jesus spotted on I50. Details at 11.
  4. Not a level comparison by Anonymous Coward · · Score: 5, Insightful

    The DSL router issue was /that/ distro, not linux as a whole. That's like lumping Adobe Flash issues in with WinXP issues.

    1. Re:Not a level comparison by MightyMartian · · Score: 3, Insightful

      How is a distro's update problems Linux's problem. Linux is an operating system. If you bought a router or downloaded a router distro that can't do updates, well, that's your fault. I learned my lesson a long time ago. I spend a few extra bucks, by a small-form box with a cheap 32 bit or 64 bit CPU, a relatively small drive, usually an SSD, throw a mainline distro like Debian on it, and not only do I have a router, but I have a router that can do some pretty complex things since I have full control of iptables, not to mention being able to run anything else on it I please. I've got it to the point that I can get a router on a box in about an hour or so, from the point that I run the netinstall version of Debian.

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  5. Re:FINALLY!! by Anonymous Coward · · Score: 4, Insightful

    At least I can see the holes in swiss cheese. Unlike the MSFT "processed" cheese-like product.

  6. Thank you IoT by grilled-cheese · · Score: 4, Insightful

    Thank you IoT vendors who don't maintain their devices for creating a breeding ground of consumer-grade security holes. Let us all pray that these widgets aren't internet facing in some way and that the consumer grade routers are sufficient at keeping external attack vectors to a minimum. There isn't much we can do for consumers who like to click on internet candy to infect themselves.

  7. this is like saying by cas2000 · · Score: 5, Insightful

    that a particular brand of car can be stolen easily if you leave them parked on the street with the door open and the keys in the ignition.

    because that's what router and IoT etc manufacturers did with default passwords and backdoors and generally undermining security for the sake of convenience (mostly their own convenience, not their customers')

  8. Potential by chill · · Score: 4, Interesting

    Linux, unlike Windows and Apple's iOS, *can* be made much more secure with a little bit of effort.

    How? By not using monolithic kernels that support every device in creation, and stripping the kernel down to what is installed on the system -- especially with things like IOT devices. If it isn't installed, it doesn't need patched, it can't break, and it can't be exploited.

    Ditto for added software and apps. Take a look at many of the Linux-based router firmwares out there, both sold by commercial vendors and FOSS projects, and you'll see attempts to compete with high-end Cisco feature sets for home or small business use.

    Having that available is great! However, turning all of that on by default, and user thinking they should get something not because it suits their needs but because it supports 10,000 features, gets you a complex, insecure mess.

    With Microsoft and Apple you can't remove many of those features. The company controls it and, Enterprise customer with a decade experience or not, you will damn well have Telemetry and like it! And dozens of other "features" that you'll never use, don't want, and just are waiting to get exploited.

    Linux gives you the ability to shape much of your own system, including making it much more secure than a run-of-the-mill device. Whether or not you take the time and effort to do that is up to you.

    I've seen way to many Linux-based routers and gadgets that are exposed to a network and still have default admin passwords to blame "Linux" for security headaches.

    --
    Learning HOW to think is more important than learning WHAT to think.
    1. Re:Potential by unixisc · · Score: 4, Insightful

      How? By not using monolithic kernels that support every device in creation, and stripping the kernel down to what is installed on the system -- especially with things like IOT devices. If it isn't installed, it doesn't need patched, it can't break, and it can't be exploited.

      Huh? Linux is a monolithic kernel, and Linus is emphatically opposed to it being anything else. If any IoT vendor wants to use a microkernel based OS, they should look at Minix instead.

      Router makers should use well known router distros of Linux or BSD, such as DD-WRT, OpenWRT or pFsense, instead of spinning their own. And let those organizations remote-manage them in exchange for a deal.

  9. Linux is a kernel ... by Murdoch5 · · Score: 4, Interesting

    Almost all the major infections, back-doors and security problems are the result of the userland, improper implementation of the kernel, bad firmwares, lack of security knowledge, improper development, sloppy implementation and etc... etc... etc..

    To say Linux is more insecure then Windows, means that the kernel, as released by Linus, and nothing else, is insecure. Well some security issues are discovered residing in the kernel, almost all other attacks and vectors have nothing to do with the base release kernel.

  10. Routers and IOT? by markdavis · · Score: 5, Insightful

    Please compare apples to apples...

    >"At the end of November, criminals with other variants of the same Linux malware unleashed devastating attacks against DSL routers of Telekom customers. 900,000 devices were "

    How many routers run MS-Windows?

    > "Other Linux malware, such as the Tsunami backdoor, has been causing trouble for several years now and can be easily modified for attacks against IoT devices."

    How many IOT devices run MS-Windows?

    Routers and IOT devices are notorious about having crappy firmware with Linuxes that are hacked up and rarely (or sometimes never) updated. Comparing those to desktops and servers is much less a function of the security of Linux and more about the lack of maintenance and updates with the unusual role of the devices.

    Sure, *ALL* operating systems have security risks and vulnerabilities. Anyone that thinks Linux (or any OS) is impervious to malware and safe needs to have their head examined. But the sensationalistic article title isn't really comparing machines of the same class, so it doesn't do the topic much justice.

  11. Flawed study, is flawed. by geekmux · · Score: 4, Insightful

    "...unleashed devastating attacks against DSL routers of Telekom customers. 900,000 devices were taken down."

    Linux. You keep using that word. I do not think it means what you think it means.

    It's a absolute joke to lump in devices that most people who who actually use Linux would define as one fucking step above the Internet of Shitty Things from a security perspective.

  12. And how much of that is due to... by IWantMoreSpamPlease · · Score: 4, Funny

    SystemD?

    --
    So rise up, all ye lost ones, as one, we'll claw the clouds.
    1. Re:And how much of that is due to... by Anonymous Coward · · Score: 5, Funny

      0.0%, notabug, wontfix.

  13. three times by MSG · · Score: 4, Informative

    This is a silly write up. There are three times more malware programs targeting Linux systems. That tells us nothing about the number of Linux vulnerabilities, or the number of vulnerable systems, or the general security of the system.

  14. Re:FINALLY!! by MightyMartian · · Score: 5, Insightful

    A router running an OS that probably hasn't been patched in years, thus containing multiple vulnerabilities long ago patched, is hardly the same thing as an OS full of holes. That's like condemning Windows because of unpatched vulnerabilities in Windows XP and Vista.

    Here's a tip. Don't buy shitty routers running years' old firmware, and expect that somehow the magic update faerie is going to make the vulnerabilities go away.

    --
    The world's burning. Moped Jesus spotted on I50. Details at 11.
  15. Re:Ah, the PRICE of fame (always the same)... apk by Bert64 · · Score: 5, Interesting

    Linux has been attacked for years, there have been rootkits and exploits out there since the early days of slackware... Linux has had a significant presence on servers almost since its inception, and is now starting to make inroads in many other markets.

    On the other hand, what people think of as "linux" in this context is a multitude of different versions of the linux kernel with various modifications and all manner of different userlands running on top. Literally anyone can build a linux-based system and pile whatever garbage software they like on top of an ancient version of the kernel.
    Windows on the other hand comes from one place, in a small set of versions, and all of the vulnerabilities attributed to windows are present in this version and usually in a default configuration.

    Microsoft fully control the versions of windows being released, and if a third party produces a device that bundles a windows install but has some additional vulnerable software running on top of it or a stupid default configuration (eg default passwords) that vulnerability is blamed on the device vendor and not on windows.

    There are no shortage of such devices, and they routinely get compromised not only due to their own poor configuration but also because of vulnerabilities in windows itself (eg eternalblue).

    When it comes to embedded devices, Linux is massively more widespread than windows, most people are likely to have more linux devices than windows and usually don't even realise it, only a subset of these devices are getting compromised because the manufacturers of those devices make stupid mistakes when building them and then fail to either provide updates, or provide a user-friendly way to apply them.

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