Vulnerability Development mailing list archives
Re: ping flooding as normal user
From: Bluefish <11a () GMX NET>
Date: Tue, 15 Aug 2000 07:45:13 +0200
I'm no expert on network coding in the unix environment (or any other environment for that sake ;) but I'm wondering how big this issue is. I mean, basicly the main problem is that bandwidth per user isn't limited (for a number of sites, being able to limit that for ordinary users might be interesting - not only to avoid abuse) Secondary, why is ping suid? is this needed for sending these IMCP packets? If this can be by any user application I really don't think there's anything to fix in ping, then it would be a something to patch in the kernels, if it is concidered a needed feature.
-s parameter of ping command has no upper limit for normal users. This allows normal users to send for example 1 * 60000 bytes of ICMP data per second (from one copy of ping invoked) I think it's just great for DoSing ;o)
Windows 95 ping is way more "flood friendly" than the gnu ping, btw.
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http://www.11a.nu || http://bluefish.11a.nu
eleventh alliance development & security team
Current thread:
- ping flooding as normal user Slawek (Aug 14)
- Re: ping flooding as normal user Bluefish (Aug 14)
- Re: ping flooding as normal user Pavel Kankovsky (Aug 15)
- Re: ping flooding as normal user Daniel Petzen (Aug 15)
- Re: ping flooding as normal user Glen Rosenblatt (Aug 14)
- Re: ping flooding as normal user Slawek (Aug 14)
- Re: ping flooding as normal user Cam (Aug 15)
- Re: ping flooding as normal user Slawek (Aug 14)
- "Re: ping flooding as normal user" and strange icmp behavior with Linux 2.4 Weston Pawlowski (Aug 17)
- Re: "Re: ping flooding as normal user" and strange icmp behavior withLinux 2.4 Sebastian Pape (Aug 18)
- Re: "Re: ping flooding as normal user" and strange icmp behavior with Linux 2.4 Slawek (Aug 20)
- Re: ping flooding as normal user Bluefish (Aug 14)
