From aland@deployingradius.com  Sun Nov 12 06:27:08 2023
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From: Alan DeKok <aland@deployingradius.com>
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Date: Sun, 12 Nov 2023 09:27:03 -0500
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To: Bernard Aboba <bernard.aboba@gmail.com>
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Subject: Re: [radext] "Insecure Practices" : accounting?
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On Nov 10, 2023, at 8:21 AM, Bernard Aboba <bernard.aboba@gmail.com> =
wrote:
>=20
> The "Insecure Practices" draft is good Halloween reading.  Quite =
horrifying. Boo!

  It's RADIUS :(

> But... there may be more!  The document doesn't talk much about =
insecure accounting.=20
>=20
> RFC 2975 describes why RADIUS over UDP shouldn't be used in situations =
where packet loss (or packet modification) translates to financial =
losses:=20
> RFC 2975 - Introduction to Accounting Management (ietf.org)
>=20
> This potentially extends the vulnerabilities described in "Insecure =
Practices" to financial irregularities.=20
>=20
> One way to fix this is to use a reliable transport and cryptographic =
integrity protection (e.g. RADIUS Accounting over TLS) to prevent loss =
or modification of accounting data.=20

  I'll add some text to the next draft.

  Alan DeKok.