CF2 TechNotes Blog http://www.cf2group.com/technotes News and Opionions on Emerging Technologies and Products Thu, 28 Aug 2008 18:26:39 +0000 http://wordpress.org/?v=2.1.2 en A Critical Security Post for an Election Year http://www.cf2group.com/technotes/2008/01/27/a-critical-security-post-for-an-election-year/ http://www.cf2group.com/technotes/2008/01/27/a-critical-security-post-for-an-election-year/#comments Mon, 28 Jan 2008 04:38:55 +0000 curtis_franklin http://www.cf2group.com/technotes/2008/01/27/a-critical-security-post-for-an-election-year/ There never seems to be a shortage of bureaucrats eager to take away our freedom by invoking security. In most cases, their proposed actions do absolutely nothing to promote real security, but do a great deal to make it easier to control and oppress the public.

I cover security, but it takes a real expert to make a convincing case against the proponents of fake security. Bruce Schneier has made a powerful case in his latest Wired blog post. The most important point he makes — and this is critical — is that the "choice" so often offered between security and privacy is not a choice that need be made. In most cases, the acts and systems that provide security don’t impinge on freedom and privacy.

We haven’t seen candidates asked questions about this in any meaningful way, but perhaps it’s past time for that to change. The way the next administration views privacy and security will have a significant impact on our lives for years to come.

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Another PCMag.com Article http://www.cf2group.com/technotes/2007/07/03/another-pcmagcom-article/ http://www.cf2group.com/technotes/2007/07/03/another-pcmagcom-article/#comments Tue, 03 Jul 2007 20:48:49 +0000 curtis_franklin http://www.cf2group.com/technotes/2007/07/03/another-pcmagcom-article/ The second article for PCMag.com is on Voice over IP (VoIP) security. Like most technologies, there are risks that go along with the benefits. Head over to the article to check out what some of the experts are saying about what you should do to protect your network if you’re deploying VoIP.

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Stupid Extortion Attempts http://www.cf2group.com/technotes/2007/03/23/stupid-extortion-attempts/ http://www.cf2group.com/technotes/2007/03/23/stupid-extortion-attempts/#comments Fri, 23 Mar 2007 22:20:22 +0000 curtis_franklin http://www.cf2group.com/technotes/2007/03/23/stupid-extortion-attempts/ I’ve known for a while that criminals had moved into extortion for their nasty cyber games. Today, though, I got my first extortion e-mail. It had all the grace and cunning of your average Nigerian scam letter, but with humorous mis-spellings and grammar manglings thrown in for flavor. It read:

hello friend

    first,i am sorry i am not a good man,I am a computer hacker,so when you seeing this email,your computer Already infected my virus.

    i want nothing,i just want a few money,so you must send 150 US dollar to my e-gold  (http://www.e-gold.com) account.

    if you dont do this, I will activate my virus in a week, then your computer will be able to be paralysed and to appear the pornographic procedure.

    this is not a joke,think about it.

    check this link to send money to me:   http://XXXXXXXXX.com

    i just can only wait you 5 days

          when you send money to me,call me at: jznglskq@gmail.com

              see you very soon

I’ve redacted the link to send money, but I’ve left the poor schmuck’s e-mail address. This sort of e-mail should forever put to rest the “all computer criminals are geniuses” meme. Needless to say, there was no malicious payload (unless you count bad grammar), and no one should ever respond to something like this.

I have left a message for the eGold security team–it should be interesting to see if they get back in touch with me. If they do, I’ll let you know.

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Another Day, Another Attack http://www.cf2group.com/technotes/2007/02/07/another-day-another-attack/ http://www.cf2group.com/technotes/2007/02/07/another-day-another-attack/#comments Wed, 07 Feb 2007 16:31:52 +0000 curtis_franklin http://www.cf2group.com/technotes/2007/02/07/another-day-another-attack/ There has been another attack on the Internet’s root DNS servers. This one would have passed unnoticed by most Internet users, because it was targeted against only a few of the servers. There are some interesting charts of the traffic levels generated by the attacks…you can see the spikes in messages that each server must cope with.

Instapundit properly, I think, identifies these as practice attacks. In that regard, they’re no different that hundreds of other attacks that take place against institutions, routers, and servers each week. The attacks are designed to show proof of concept for exploiting new vulnerabilities, and to allow the attacker to watch the response–the better to design attacks that can operate longer without an effective response.

Here’s my fearless prediction of the day: There will be a hit that people notice, because it makes some significant part of the Internet unavailable for a period of time. We’ve seen it before. I suspect that the next time, though, the Internet attack will be to facilitate or distract from some other attack, quite possibly against financial or economic infrastructure targets. This is old news to Internet security folks, but we still don’t see the level of information sharing and response coordination between different security areas that we should. It’s time more people tool these reconnaissance attacks seriously–and time we started learning as much from them as do hackers do.

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Cisco Security http://www.cf2group.com/technotes/2007/01/25/cisco-security/ http://www.cf2group.com/technotes/2007/01/25/cisco-security/#comments Thu, 25 Jan 2007 19:44:42 +0000 curtis_franklin http://www.cf2group.com/technotes/2007/01/25/cisco-security/ Back at the beginning of the month, I wrote about the problems that security holes in Cisco software could present. Now we get word that new vulnerabilities have been found. These latest issues, detailed by US-CERT, could allow outsiders to run your routers. Trust me, if you don’t know why this is very bad, then you don’t need a router.

Cisco has issues a security alert about each of the vulnerabilities, and has made patches available. If you’re in a company with a “we never patch our router” policy, it’s well past time that you changed your policies and procedures. If you don’t have Cisco routers in your infrastructure, don’t get complacent. Cisco is a target for folks looking for vulnerabilities for the same reason Microsoft is a target: it’s where the big numbers are. That doesn’t mean that other equipment doesn’t have vulnerabilities. You should be checking for software and firmware updates to your network infrastructure on a regular basis, whether you’re supporting the network for a large company or a small family. The risks are just too great to let this one slide.

 The CNet story referenced above isn’t the only coverage of this. You might find it interesting to look at ComputerWorld’s take from the IDG News Service; a take from Light Reading; and a view from The Register that ranks the severity of the vulnerabilities.

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A Most Imperfect Storm http://www.cf2group.com/technotes/2007/01/19/a-most-imperfect-storm/ http://www.cf2group.com/technotes/2007/01/19/a-most-imperfect-storm/#comments Fri, 19 Jan 2007 21:35:40 +0000 curtis_franklin http://www.cf2group.com/technotes/2007/01/19/a-most-imperfect-storm/ When I read the name “Storm Worm” my thoughts run to Dune, but the news out of Europe doesn’t have a noble component. The malware writers have become more aggressive and more timely with a worm that’s hit hundreds of thousands of users in the last 24 hours.

The Storm Worm hit European users on the heels of a severe winter storm. Attached to an e-mail message with the subject “230 Dead as Storm Batters Europe”, the worm will turn an infected computer into a zombie on a botnet, or allow personal data to be storlen from the system. Time worked to the advantage of most North American computer users–many system administrators had placed the subject and payload into blocking filters by the time the Atlantic Seaboard hit office hours.

What’s the takeaway? This worm, like so many others, relied on social engineering, rather than a flaw in the operating system or application, to compromise a computer. Anti-malware software can help, but computer security begins with understanding how the bad guys will try to use a weakness in front of the keyboard to gain access to a computer. Don’t open attachments or click on links in an e-mail message if you aren’t absolutely certain about the orginator. Pick up the phone to call and verify if you need to–your computer, and those of many other users, will thank you for the effort.

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