Full Disclosure mailing list archives
Re: rfc1918 space dns requests
From: Valdis.Kletnieks () vt edu
Date: Tue, 16 Mar 2004 12:12:48 -0500
On Tue, 16 Mar 2004 11:43:48 EST, "Geo." <geoincidents () getinfo org> said:
I'm aware of the issues involved with an ISP passing the requests on to the root servers but was looking specifically for security type issues relating to a private network passing the requests out to their ISP's dns servers.
There's several basic vulnerabilities here: 1) The same screw-up that allows the DNS requests to escape can almost certainly be used to tunnel other stuff in/out of the network. Find ways to use this to your advantage. 2) We've got applications making DNS requests that get forwarded out to the ISP's servers, where they will almost certainly result in either an error reply or a timeout Find ways to use this to your advantage. 3) Despite the slowness and/or brokenness of (2), the site admins haven't fixed the misconfiguration. This means they are some combination of clueless and/or lazy, and this is a tolerated/accepted state of affairs. Find ways to use this to your advantage. ;) It's not so much a vulnerability in and of itself, as a warning signal that there are probably lots of OTHER issues with the network. Remember: Nothing screams "poor workmanship" quite like wrinkles in the duct tape. ;)
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- [SECURITY] [DSA 464-1] New gdk-pixbuf packages fix denial of service debian-security-announce (Mar 16)
- rfc1918 space dns requests Geo. (Mar 16)
- Re: rfc1918 space dns requests Valdis . Kletnieks (Mar 16)
- Re: rfc1918 space dns requests martin f krafft (Mar 16)
- Re: Re: rfc1918 space dns requests Valdis . Kletnieks (Mar 16)
- Re: Re: rfc1918 space dns requests Martin F Krafft (Mar 18)
- Re: Re: rfc1918 space dns requests madsaxon (Mar 18)
- Re: rfc1918 space dns requests Valdis . Kletnieks (Mar 16)
- Re: Re: rfc1918 space dns requests Jason Coombs (Mar 16)
- Re: Re: rfc1918 space dns requests martin f krafft (Mar 18)
- rfc1918 space dns requests Geo. (Mar 16)