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DNS Poisoning Hits One of China's Biggest ISPs
Support Code writes "ZDNet's Zero Day blog is reporting that a DNS server of one of China's largest ISPs has been poisoned to redirect typos to a malicious site rigged with drive-by exploits. The DNS poisoning attacks are affecting customers of China Netcom (CNC) and are using a malicious iFrame to launch exploits for known vulnerabilities in RealNetworks' RealPlayer, Adobe Flash Player and Microsoft Snapshot Viewer. In this interview with CNet, Dan Kaminsky confirms that attacks are definitely going on in the field."
I'd like to buy a vowel. A.
is property of html, not Apple Inc.
Odd, just a little probe from the NSA?
Whenever attacks target specific countries, I wonder.... Yeah, I guess I'm feeling a little paranoid tonight.
If you can read this... 01110101 01110010 00100000 01100001 00100000 01100111 01100101 01100101 01101011
It's a good thing nobody uses Real Player these days, isn't it!
Since when do I have to input my SSN to post to slashdot?
Modding me -1 troll doesn't make me wrong.
It's busy trying to paint a picture that the whole problem is only with BIND, not with DNS protocol and in particular not with M$ DNS.
The largest prime factor of my UID is 263267.
... I feel a bit lucky because I never trust my ISP's name servers. I knew this day would come. If possible, I always use the OpenDNS servers. (Disclaimer here: I'm not saying the OpenDNS service is recommended for security. It's just a matter about reputation.)
The Chinese ISPs has been known to use manipulated DNS records as a censorship measure, too. See here: http://slashdot.org/article.pl?sid=07/11/18/1824230
Colorless green Cthulhu waits dreaming furiously.
lol
Can we check the IP origin of that last post please?
*ring*ring*
Badguy1: "Hello"
Badguy2: "Hi its me, you ready to do this thing tonight?"
Badguy1: "sure, dont forget to bring the stuff"
*click*
Badguy2: "hey did you just hear a click on the line?"
Badguy1: "yeah! - do you think we are being tapped by the NSA?"
Anonymous Coward: "No its not our style"
Badguy1: "OK"
Badguy2: "OK"
Not following the rules of the Constitution is not the "style" either, but it looks like that went out of fashion.
Yeah. The NSA sends Sam Fisher.
That has almost happened
http://news.bbc.co.uk/2/hi/programmes/panorama/6476207.stm
These guys were actually bugged discussing and eventually dismissing the possibility that MI5 was bugging them.
echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
Someone's decided to make DNS poisoning an Olympic sport. Obviously the only place to do it at the moment is China.
I've got images in my head of a broken toothed Chinese geek running around Beijing with an EEE PC and a Linksys wireless router hooked to a 12V SLA battery, lights a-blinking, instead of the Olympic torch. Thank goodness the Olympics are about to end.
These posts express my own personal views, not those of my employer
Haha, I guess it's kind of become reflex now to capitalize anything coming after an i.
All your base are belong to Wii.
*whoosh* watch more South Park
It's a big flaw. Someone big was bound to fall foul of it eventually. And to be honest, I can't say that I'm at all surprised. In fact, I'm expecting a lot more.
I bet that there are still hundreds of large companies that are vulnerable worldwide and I bet that translates to hundreds of thousands, if not millions, of affected people. For instance, last time I checked the whole LGfL (London Grid for Learning) was vulnerable - and they provide DNS / Internet connectivity for every school in London (several million users, hundreds if not thousands of schools) with little alternative because they have been mandated as the recommended solution and thus all "interesting" content is in their private network.
If they ARE still compromised (and several days after the release of the information, they were still showing up as vulnerable on all those DNS tests and today I got: Your name server, at ***.***.***.***, appears vulnerable to DNS Cache Poisoning. All requests came from the following source port: 32768), that's virtually every school, staff member and student in London (we're probably talking close on a million people because it includes Greater London Boroughs but I'm not sure of the exact figure) which are in trouble because they use the upstream DNS from LGfL as their basis.
Have we heard anything through official channels? Nope.
Does everybody just trust LGfL to do their job transparently? Yep.
Have they done it? Apparently not.
Have they even heard of it? I don't know, but there have been zero advisories, zero visible configuration changes, that I can see.
Give it a few months, one of the students will download something and poison the whole of London's educational system and THEN maybe someone will bother to look into it.
When I heard about this flaw, the first thing I did was check all upstream servers that either my servers or my own home computers use - my cheap ISP (PlusNet) had apparently fixed the issue before I'd even caught wind of the "there may be a DNS problem" posts on Kaminsky's blog. Every other one just seems to be dragging their feet.
In fact Frosty Post AC has a point.
Chinese speakers (at least in Beijing) often use the word é£ä (neige) as a filler word; much in the same way as 'uh' or 'er' are used in the English language.
For anyone with no understanding of the Chinese language will often be confronted by the words 'nigga, nigga' when walking on the streets of Beijing.
"iFrame"? Lower-case i, uppercase next letter? How odd. It's "inline frame", normally all caps ('IFRAME') or all lower-case ('iframe'). "iFrame" makes it sound like some new Apple-branded house support structure with built-in Internet-something.
You like splinters in your crotch? -Jon Caldara
It may be a good idea to check your DNS server to see if it is vulnerable. Dan Kaminsky has a tool that shows vulnerability on his blog.
Check our own ISPs name servers, openDNS's name servers, and we need a third independent name server pool.
Check all three before moving accepting the IP, and if there is any disagreement, just don't go. Also, send an automated warning to all three DNS pools to re-seed their random number generators and clear the contested IP from their cache.
Of course, I'm talking about DNS pools as if they already exist. But they should.
Interactions that need to be secured should also use independent multiple polling before exchanging tokens. Financial institutions, for instance, should keep their own private supernetwork, such that the customer queries their local branch to start login, then queries two other bank-owned check servers, to make sure the branch IP is what the bank says it should be. This would require dedicated browsers, but that's really a given. It's time to quit giving popular browser M, I, or E our credit card numbers to play with. The convenience is not worth it.
Computer memory is just fancy paper, CPUs just fancy pens with fancy erasers; the 'net is just a fancy backyard fence.
If they were trying to do damage to china, wouldn't they have simply redirected everyone to anti-government propaganda sites instead?
It may be like a reflex now, but at least the "iFrame" name is derived from what it actually is (an Inline Frame) and not just a letter stuck somewhere as part of a marketing or branding gimmick.
"Basically, the problem exists in the DNS system, which translates Web addresses into numerical IP addresses and serves as the phone book for the Internet."
I would have expected more from CNet. I guess thats what the internet is now: "The Web".
Obviously some moderator never has never seen this.
Just run your own caching resolver if you don't 100% trust any local ones. I use Unbound and choose not to worry about which external DNS server is "safer", and give myself (overall) faster resolves in the process.
...lead poisoning, was it?
Thank you, thank you, I'll be here all week.
I know you're just trying to be funny, but allow me still to (hopefully) educate some of your readers.
If anyone was wiretapping and using reasonably well-designed equipment, you wouldn't hear clicks, since clicks can be avoided. I think "high-impedance circuitry" was the phrase used to justify that claim.
Also, if the wiretappers are playing by the rules, you can just press C on your phone (or play back two tones with the corresponding frequencies but less amplitude than your phone does) to shut down the recording equipment at the other end.
Source: Matt Blaze, http://www.usenix.org/events/lisa05/tech/mp3/blaze.mp3, http://www.usenix.org/events/lisa05/tech/.
Interesting to know, if you plan on being wiretapped. What's also interesting to know is that wiretapping equipment is (usually) illegal to posses, yet can be bought from law enforcement agencies on ebay :)
1. Buy gold
... that is: Sell your gold after teh GW upgrades public "terrist" threat level.
2. Poison huge ISP DNS, redirecting to various sites with extreme info on chemical warfare
3. ???
4. Profit
She made the willows dance
Btw - what does the "i" have to do with apple anyhow?
Seven Days with Ubuntu Unity
So we know there is an exploit and it is being redirected to a website...but no one in law enforcement can determine where that IP is located? They're running the scam out in the public, for cripes sake. It's not even like the old shell scam on a card table, where you had to have compatriots looking around the corners for policmen on foot patrols. These scammers have their card tables set up in front of the precinct office.
Yes it is a hole. Yes it needs to be fixed. But would the perps be that difficult to trace down and prosecute?
Aah, change is good. -- Rafiki
Yeah, but it ain't easy. -- Simba
Yeah, and he sure taught you a lesson by modding your explanation of the first post Offtopic.
How dare you point out his ignorance!
I don't care why you're posting AC
I knew that. The whole iLine of products is really annoying to me. Same goes for eMachines, and I have to admit the whole K thing with KDE apps is kind of annoying too. But KDE is still better than GNOME, flamewar go! *ducks*
All your base are belong to Wii.
Get back, troll.
Computer memory is just fancy paper, CPUs just fancy pens with fancy erasers; the 'net is just a fancy backyard fence.
the only example on Websense is concerning "gogle.cn". I've just tried a nslookup using CNC DNS (and even with CT DNS) and nothing is wrong... so either, CNC has corrected its DNS (for this specific domain), either...
FluxBox rulz! *ducks lower*
I know tobacco is bad for you, so I smoke weed with crack.