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| From | Sandman <mr@sandman.net> |
| Newsgroups | comp.os.linux.networking, comp.os.linux.security, comp.infosystems.www.servers.unix |
| Subject | Re: wpad.dat attack on Linux Apache server |
| Date | Sat, 25 May 2013 09:54:19 +0200 |
| Lines | 42 |
| Message-ID | <mr-2DA9EF.09541925052013@News.Individual.NET> (permalink) |
| References | <mr-983E88.11221424052013@News.Individual.NET> <87vc68ra57.fsf@araminta.anjou.terraraq.org.uk> <mr-05E7DC.11442724052013@News.Individual.NET> <87ppwgr8wz.fsf@araminta.anjou.terraraq.org.uk> <mr-794073.12134024052013@News.Individual.NET> <87k3mor85j.fsf@araminta.anjou.terraraq.org.uk> <mr-17CDE1.12235424052013@News.Individual.NET> <knnhma$50u$4@dont-email.me> <mr-011092.14433624052013@News.Individual.NET> <519f6593$0$15954$e4fe514c@news2.news.xs4all.nl> <mr-D7D3D2.15141924052013@News.Individual.NET> <8761y8qxcr.fsf@araminta.anjou.terraraq.org.uk> <mr-870DFD.16265624052013@News.Individual.NET> <519f999f$0$15903$e4fe514c@news2.news.xs4all.nl> <mr-C61E2B.18533924052013@News.Individual.NET> <kno77s$78m$2@dont-email.me> <mr-F2952F.21202924052013@News.Individual.NET> <87ehcvqz81.fsf@araminta.anjou.terraraq.org.uk> |
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Cross-posted to 3 groups.
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In article <87ehcvqz81.fsf@araminta.anjou.terraraq.org.uk>, Richard Kettlewell <rjk@greenend.org.uk> wrote: > > The only one of my clients that have wildcard:ed their domain to me is > > opennet.se, I'll have a talk to them. As far as I know, they don't > > have almost 5000 users on their LAN though. > > $ host wpad.opennet.se > wpad.opennet.se is an alias for cluster.atlascms.se. > cluster.atlascms.se has address 94.247.170.170 > > Looks like a smoking gun to me... Yes, but they are still no ISP, and all requests comes from swedish ISP's (like bahnhof.se, bredband2.se and such) and wpad.bahnhof.se doesn't point to me. > > because even if what you postulate is a possible scenario, it would > > under no circumstances generate hundreds of thousands of requests - > > sometimes 30-40 per second from one single host. That's where the > > entire "misconfigured DNS" idea falls slightly apart, don't you agree? > > > > I mean, if I came here wondering about these wpad.dat requests I see > > now and then, then that would be a logical question. But I get about > > 20-30 requests per second, every second. That just can't be due to a > > misconfigured wildcard DNS. > > > > Or do you think I am jumping to conclusions? > > More then one thing can be broken at once. In this case, the easiest > thing to do is to stop wpad.opennet.se pointing at you. If that fixes > it, then it’s time to speculate about why so many IP clients were > involved. If it doesn’t, move on to the next theory. Checking for a > ‘wpad’ subdomain for each of your customer domains would seem like the > logical next step. Yes, I have found none. I keep blocking them (over night, they didn't grow to more than about 5000 actually, I'm at 5163 right now) -- Sandman[.net]
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wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 11:22 +0200
Re: wpad.dat attack on Linux Apache server Richard Kettlewell <rjk@greenend.org.uk> - 2013-05-24 10:37 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 11:44 +0200
Re: wpad.dat attack on Linux Apache server Richard Kettlewell <rjk@greenend.org.uk> - 2013-05-24 11:04 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 12:13 +0200
Re: wpad.dat attack on Linux Apache server Richard Kettlewell <rjk@greenend.org.uk> - 2013-05-24 11:20 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 12:23 +0200
Re: wpad.dat attack on Linux Apache server J G Miller <miller@yoyo.ORG> - 2013-05-24 11:07 +0000
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 14:43 +0200
Re: wpad.dat attack on Linux Apache server Casper H.S. Dik <Casper.Dik@OrSPaMcle.COM> - 2013-05-24 13:05 +0000
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 15:14 +0200
Re: wpad.dat attack on Linux Apache server Joe Beanfish <joebeanfish@nospam.duh> - 2013-05-24 13:39 +0000
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 16:23 +0200
Re: wpad.dat attack on Linux Apache server Richard Kettlewell <rjk@greenend.org.uk> - 2013-05-24 15:13 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 16:26 +0200
Re: wpad.dat attack on Linux Apache server Richard Kettlewell <rjk@greenend.org.uk> - 2013-05-24 17:38 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 19:02 +0200
Re: wpad.dat attack on Linux Apache server Richard Kettlewell <rjk@greenend.org.uk> - 2013-05-24 18:45 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 21:12 +0200
Re: wpad.dat attack on Linux Apache server Casper H.S. Dik <Casper.Dik@OrSPaMcle.COM> - 2013-05-24 16:47 +0000
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 18:53 +0200
Re: wpad.dat attack on Linux Apache server J G Miller <miller@yoyo.ORG> - 2013-05-24 17:15 +0000
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 21:20 +0200
Re: wpad.dat attack on Linux Apache server Richard Kettlewell <rjk@greenend.org.uk> - 2013-05-25 08:45 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-25 09:54 +0200
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-25 10:04 +0200
Re: wpad.dat attack on Linux Apache server Casper H.S. Dik <Casper.Dik@OrSPaMcle.COM> - 2013-05-26 10:12 +0000
Re: wpad.dat attack on Linux Apache server "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2013-05-24 13:50 -0400
Re: wpad.dat attack on Linux Apache server Richard Kettlewell <rjk@greenend.org.uk> - 2013-05-24 19:10 +0100
Re: wpad.dat attack on Linux Apache server Richard Kettlewell <rjk@greenend.org.uk> - 2013-05-24 19:15 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 21:33 +0200
Re: wpad.dat attack on Linux Apache server Richard Kettlewell <rjk@greenend.org.uk> - 2013-05-25 08:38 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 21:25 +0200
Re: wpad.dat attack on Linux Apache server Whiskers <catwheezel@operamail.com> - 2013-05-25 15:52 +0100
Re: wpad.dat attack on Linux Apache server Roger <invalid@invalid.invalid> - 2013-05-25 17:19 +0100
Re: wpad.dat attack on Linux Apache server J G Miller <miller@yoyo.ORG> - 2013-05-25 17:22 +0000
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-25 19:41 +0200
Re: wpad.dat attack on Linux Apache server Chris Davies <chris-usenet@roaima.co.uk> - 2013-05-24 12:31 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 14:29 +0200
Re: wpad.dat attack on Linux Apache server Chris Davies <chris-usenet@roaima.co.uk> - 2013-05-24 23:45 +0100
Re: wpad.dat attack on Linux Apache server Sandman <mr@sandman.net> - 2013-05-24 14:49 +0200
Re: wpad.dat attack on Linux Apache server jcharth@gmail.com - 2013-05-28 12:45 -0700
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