WebApp Sec mailing list archives
RE: Filtering by client IP address for Web App Sessions
From: "Griffiths, Ian" <Ian.Griffiths () liv-coll ac uk>
Date: Thu, 24 Feb 2005 13:14:33 -0000
1. Yes 2. You mean within one visit the proxy address will jump across netblocks? My short answer is yes, I think I've seen behaviour like this. My slow answer is that I would have to check that out. I'd say you are correct - even if this behaviour is limited to AOL it is still true enough. Not scientific measurement, but a little over 10% of email addresses which I hold are AOL (1700 out of 16500 records). Even if this data is not reflective of the UK public at large, it is still significant. Ian -----Original Message----- From: Evans, Arian [mailto:Arian.Evans () fishnetsecurity com] Sent: 23 February 2005 15:13 To: webappsec () securityfocus com Subject: Filtering by client IP address for Web App Sessions Question for those outside of the US of A: In Europe, Asia, etc. do you have: 1. Any significant user population of your web applications comprised of AOL (America online) users? 2. Are there many ISPs or large organizations using megaproxies that swap client source IPs across entire classes of netblock (e.g. -like AOL does)? I've been telling people for years that you can't filter by source or even last octet netblocks and lately have been wondering if I'm dense and this is a US-centric bias of mine thanks to the ISP behaviors I've had to deal with over the years. Feedback appreciated, Arian
Current thread:
- Filtering by client IP address for Web App Sessions Evans, Arian (Feb 23)
- Re: Filtering by client IP address for Web App Sessions Paul Johnston (Feb 28)
- Re: Filtering by client IP address for Web App Sessions Steve Shah (Feb 28)
- Re: Filtering by client IP address for Web App Sessions Paul Johnston (Mar 01)
- Re: Filtering by client IP address for Web App Sessions exon (Feb 28)
- Re: Filtering by client IP address for Web App Sessions Jason Coombs (Feb 28)
- Re: Filtering by client IP address for Web App Sessions Frank Knobbe (Feb 28)
- Re: Filtering by client IP address for Web App Sessions Javier Fernandez-Sanguino (Mar 01)
- <Possible follow-ups>
- RE: Filtering by client IP address for Web App Sessions Amichai Shulman (Feb 28)
- RE: Filtering by client IP address for Web App Sessions Griffiths, Ian (Feb 28)
- RE: Filtering by client IP address for Web App Sessions Scovetta, Michael V (Feb 28)
- RE: Filtering by client IP address for Web App Sessions Evans, Arian (Mar 03)