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The main goal of a DPI engine is usually to determine "what", i.e. which
types of traffic flow on the network.
However the applications using DPI are often interested also in "who",
i.e. which "user/subscriber" generated that traffic.
The association between a flow and a subscriber is usually done via some
kind of DHCP/GTP/RADIUS/NAT mappings. In all these cases the key element
of the flow used to identify the user is the source ip address.
That usually happens for the vast majority of the traffic.
However, depending on the protocols involved and on the position on the net
where the traffic is captured, the source ip address might have been
changed/anonymized. In that case, that address is useless for any
flow-username association.
Example: iCloud Private Relay traffic captured between the exit relay and
the server.
See the picture at page 5 on:
https://www.apple.com/privacy/docs/iCloud_Private_Relay_Overview_Dec2021.PDF
This commit adds new generic flow risk `NDPI_ANONYMOUS_SUBSCRIBER` hinting
that the ip addresses shouldn't be used to identify the user associated
with the flow.
As a first example of this new feature, the entire list of the relay ip
addresses used by Private Relay is added.
A key point to note is that list is NOT used for flow classification
(unlike all the other ip lists present in nDPI) but only for setting this
new flow risk.
TODO: IPv6
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Add detection of AccuWeather site/app and Google Classroom.
Improve detection of Azure, Zattoo, Whatsapp, MQTT and LDAP.
Fix some RX false positives.
Fix some "Uncommon TLS ALPN"-risk false positives.
Fix "confidence" value for some Zoom/Torrent classifications.
Minor fix in Lua script for Wireshark extcap.
Update .gitignore file.
Let GitHub correctly detect the language type of *.inc files.
Zattoo example has been provided by @subhajit-cdot in #1148.
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Added ndpi_set_tls_cert_expire_days() API call to modify the number of days for triggering the above alert that by default is set to 30 days
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named NDPI_POSSIBLE_EXPLOIT
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Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
* Add files via upload
Co-authored-by: Luca Deri <lucaderi@users.noreply.github.com>
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It was partially disabled in 3eba8cc5.
Wireshark and Wireshark-Lua bindings don't handle 64 bit integer very well.
(see https://www.wireshark.org/docs/wsdg_html_chunked/lua_module_Int64.html).
As workaround, only for visualization purpose, split the (64 bit) risk mask
into two 32 bit integer values.
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* Added flow risk: TLS certificate too long
* Added flow risk: TLS certificate too long
* Date for TLS limit added
* TLS certificate check fixed
Co-authored-by: pacant <a.pace97@outlook.com>
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* Update iec.lua
fixed lua errors in non iec 104 packets
* Update iec.lua
Co-authored-by: tinu <martin.scheu@switch.ch>
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Create a separated proto field entry for each possible flow risk.
This way, filtering will be more natural: you can use something like
"ndpi.flow_risk.desktop_file_sharing_session"
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combination with ./tests/do.sh
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
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