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Enip rust 3958 v7 #9991
Enip rust 3958 v7 #9991
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ENIP/CIP Keywords | ||
================= | ||
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The enip_command and cip_service keywords can be used for matching on various properties of | ||
ENIP requests. | ||
enip_command | ||
------------ | ||
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There are three ways of using this keyword: | ||
For the ENIP command, we are matching against the command field found in the ENIP encapsulation. | ||
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Examples:: | ||
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* matching on ENIP command with the setting "enip_command"; | ||
* matching on CIP Service with the setting "cip_service". | ||
* matching both the ENIP command and the CIP Service with "enip_command" and "cip_service" together | ||
enip_command:99; | ||
enip_command:ListIdentity; | ||
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For the ENIP command, we are matching against the command field found in the ENIP encapsulation. | ||
cip_service | ||
----------- | ||
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For the CIP Service, we use a maximum of 3 comma separated values representing the Service, Class and Attribute. | ||
These values are described in the CIP specification. CIP Classes are associated with their Service, and CIP Attributes | ||
are associated with their Service. If you only need to match up until the Service, then only provide the Service value. | ||
If you want to match to the CIP Attribute, then you must provide all 3 values. | ||
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Syntax:: | ||
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enip_command:<value> | ||
cip_service:<value(s)> | ||
enip_command:<value>, cip_service:<value(s)> | ||
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Examples:: | ||
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enip_command:99 | ||
cip_service:75 | ||
cip_service:16,246,6 | ||
enip_command:111, cip_service:5 | ||
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(cf. http://read.pudn.com/downloads166/ebook/763211/EIP-CIP-V1-1.0.pdf) | ||
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Information on the protocol can be found here: | ||
`<http://literature.rockwellautomation.com/idc/groups/literature/documents/wp/enet-wp001_-en-p.pdf>`_ | ||
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enip.status | ||
----------- | ||
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For the ENIP status, we are matching against the status field found in the ENIP encapsulation. | ||
It uses a 32-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.status:100; | ||
enip.status:>106; | ||
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enip.protocol_version | ||
--------------------- | ||
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Match on the protocol version in different messages. | ||
It uses a 16-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.protocol_version:1; | ||
enip.protocol_version:>1; | ||
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enip.cip_attribute | ||
------------------ | ||
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Match on the cip attribute in different messages. | ||
It uses a 32-bit unsigned integer as value. | ||
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This allows to match without needing to match on cip.service. | ||
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Examples:: | ||
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enip.cip_attribute:1; | ||
enip.cip_attribute:>1; | ||
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enip.cip_instance | ||
----------------- | ||
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Match on the cip instance in CIP request path. | ||
It uses a 32-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.cip_instance:1; | ||
enip.cip_instance:>1; | ||
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enip.cip_class | ||
-------------- | ||
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Match on the cip class in CIP request path. | ||
It uses a 32-bit unsigned integer as value. | ||
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This allows to match without needing to match on cip.service. | ||
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Examples:: | ||
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enip.cip_class:1; | ||
enip.cip_class:>1; | ||
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enip.cip_extendedstatus | ||
----------------------- | ||
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Match on the cip extended status if any (one of them in case of multiple service packet). | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. This sentence is a bit confusing to me. Does this mean that There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Your understanding is correct. Do you have another way to phrase this ? There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. What about... |
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It uses a 16-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.cip_extendedstatus:1; | ||
enip.cip_extendedstatus:>1; | ||
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enip.revision | ||
--------------------- | ||
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Match on the revision in identity message. | ||
It uses a 16-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.revision:1; | ||
enip.revision:>1; | ||
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enip.identity_status | ||
-------------------- | ||
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Match on the status in identity message (not in ENIP header). | ||
It uses a 16-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.identity_status:1; | ||
enip.identity_status:>1; | ||
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enip.state | ||
---------- | ||
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Match on the state in identity message. | ||
It uses a 8-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.state:1; | ||
enip.state:>1; | ||
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enip.serial | ||
----------- | ||
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Match on the serial in identity message. | ||
It uses a 32-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.serial:1; | ||
enip.serial:>1; | ||
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enip.product_code | ||
----------------- | ||
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Match on the product code in identity message. | ||
It uses a 16-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.product_code:1; | ||
enip.product_code:>1; | ||
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enip.device_type | ||
---------------- | ||
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Match on the device type in identity message. | ||
It uses a 16-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.device_type:1; | ||
enip.device_type:>1; | ||
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enip.vendor_id | ||
-------------- | ||
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Match on the vendor id in identity message. | ||
It uses a 16-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.vendor_id:1; | ||
enip.vendor_id:>1; | ||
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enip.product_name | ||
----------------- | ||
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Match on the product name in identity message. | ||
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Examples:: | ||
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enip.product_name; pcre:"/^123[0-9]*/"; | ||
enip.product_name; content:"swordfish"; | ||
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``enip.product_name`` is a 'sticky buffer' and can be used as ``fast_pattern``. | ||
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enip.service_name | ||
----------------- | ||
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Match on the service name in list services message. | ||
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Examples:: | ||
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enip.service_name; pcre:"/^123[0-9]*/"; | ||
enip.service_name; content:"swordfish"; | ||
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``enip.service_name`` is a 'sticky buffer' and can be used as ``fast_pattern``. | ||
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enip.capabilities | ||
----------------- | ||
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Match on the capabilities in list services message. | ||
It uses a 16-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.capabilities:1; | ||
enip.capabilities:>1; | ||
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enip.cip_status | ||
--------------------- | ||
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Match on the cip status (one of them in case of multiple service packet). | ||
It uses a 8-bit unsigned integer as value. | ||
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Examples:: | ||
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enip.cip_status:1; | ||
enip.cip_status:>1; |
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For all these cases where a value is accepted, are all other modes (<, <=, >...) also accepted? Wonder if this should be made more evident, if nothing else, by using other operands, too.
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Every mode is supported is true for all integer keywords...
Maybe there should be from every integer keyword documentation a link to some special section where integers are documented ? This should be its own redmine ticket ;-)
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Fair point, and makes sense.
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https://redmine.openinfosecfoundation.org/issues/6628