IPS 4200 Signature & Action IDs

I need a reference manual for the list of all the signatures and actions supported by Cisco IPS 4200 series appliances with software version 6.x.
I have tried locating this through the IPS product page but had no luck yet.
Please let me know where can I find this reference manual.
Thanks.

Have you looked at the security center?
http://tools.cisco.com/security/center/search.x?search=Signature
Regards
Farrukh

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CIsco IPS 4200 Log Fields

Hi,
Could anyone please tell me where can I find the information regarding the Fields of the log for IPS 4200? In what sequence do they appear in log files and what does each field signify?
Basically, I need the layout of the log file for the IPS logs. e.g. a sample layout would be something like this:
[timestamp] , [signatureID] , [vendor] [signature desc], [attacker IP] , [victim IP] , [attack type] , [action ID] , [action desc]
Thanks.
Regards,
Pratik

Here's an example of an SDEE message. I believe this is from a version 5.x sensor (it could be version 4, I don't see Risk Rating). Each time a new major version of software is release, new features are added and (if reportable) they show up as new fields in the SDEE messages.
testsensor4250XL
sensorApp
440
Sdee
10.1.1.119
1180958240541285000
10.1.1.119
0
1
R0VUIC9vc3Mvc3VydmV5LmFzcD7pdW1kYXlzPTUrMyBIVFRQ0=
11.1.1.2
60556
61.1.1.76
80

IPS 4200 Series

Hello Dears,
I have fresh installed IPS 4200 in Inline interface pair mode, Uptill now i m not getting any packet drops or complains from users.
What else to be done to configure IPS as a Professional setup for corporate Network.
Thanks

Now the hard work begins.
Performing analysis on all medium and high severity signatures and performing these actions:
Tuning the signatures - Recurring false positive signatures that fire should be adjusted down in severity of disabled (if completely useless)
- Turning on packet captures to learn more about why a signature is fireing and help your analysis.
Remediation - Once you've found an infected host inside your network, clean it.
- If the attack is from outside your network, discover how it is getting in and modify the means of access (Firewall, VPN, etc) to prevent future attack vectors.
This should be plenty to get you started and keep you busy. Don't forget to rinse and repeat.
- Bob

Cisco IPS 4200 Series Feature

Does the Cisco IPS 4200 can support RADIUS for user authentication?
Does the Cisco IPS 4200 can support SYSLOG for sending logging to outside?

Are you kidding me? Then how do you explain
the fact that security devices such as
checkpoint and ASA firewalls are allowed
authentication via tacacs/radius and you can
send syslog back to a syslog server. Normally
the information is got sent back via the
Command and Control (C&C) interface which
should be on a secure network in the first
place.
This is a limitation of the of the IDS itself.
I have not tried version 5.x or 6.x yet but
if they are similar to version 4.1, then
they are nothing but a Linux box. You can
"shell" into the box and install PAM on it
so that you can use external authentication
such as radius/tacacs or even LDAP.

WLC IPS custom signature file

Hi,
Where can I download the WLC IPS custom signature file? Is WLC support openLdap for user web or 802.1x authentication?
Best Regards,
Jackson Ku

The documentation for 5.1 is located at:
http://www.cisco.com/en/US/customer/products/hw/vpndevc/ps4077/products_configuration_guide_book09186a008055de07.html
I believe the regex you want is:
[Mm][Aa][Ii][Ll][\t][Ff][Rr][Oo][Mm][:][\x21-\x7E]+[@][Ss][Ee][Xx].[Cc][Oo][Mm]
The + field allows for any printable characters (but there must be at least 1) in the senders email address. You should use the SMTP state machine with the SMTP Commands state set, direction to service port 25.

IPS 4200 Fault tolerance

Hi, Is it possible to have two IPS 4200 appliances in a failover or high availability pair? Or is it single with hardware bypass only?
Thanks

In data centers like these, redundant routers, switches, and even power supplies help ensure business continuity during an outbreak. The IPS appliances, however, do not support stateful failover. IPS devices maintain state with traffic flows and may drop traffic from an asymmetrical traffic flow. It is therefore important to factor this into the design.
You can use the bypass mode as a diagnostic tool and a failover protection mechanism. You can set the sensor in a mode where all the IPS processing subsystems are bypassed and traffic is permitted to flow between the inline pairs directly. The bypass mode ensures that packets continue to flow through the sensor when the sensor's processes are temporarily stopped for upgrades or when the sensor's monitoring processes fail. There are three modes: on, off, and automatic. By default, bypass mode is set to automatic.

I'm looking for Failover/High available solutions for IPS 4200 Series

Hi all,
I tried to find out Failover/High available solutions for IPS 4200 series,I didn't saw failover solutions in IPS guide document. Anybody can be help me!

I do not know if this is documented anywhere, but I can tell you what I do. As long as the IPS 4200 has power, with the right software settings, the unit can fail such that it will pass traffic. Should the unit loose power, it does stop all traffic. I run a patch cable in parallel with the in line IPS unit, in the same VLAN, with a higher STP cost. Thus all traffic will traverse the IPS unit when possible, but should something happen to it, a $10 patch cable takes over.
Mike

Cisco ips 4200 - errsystemerror-ct-sensorapp.443 not responding

Hi team,
Does anyone have come across the below error while accessing the cisco ips 4200 running with 7.0 version. The Gui closes automatically after this message.
errsystemerror-ct-sensorapp.443 not responding, clientpipe failed.
regards()

Problem resolved by rebooting the device.. It is documented in cisco.
http://www.cisco.com/en/US/products/hw/vpndevc/ps4077/products_qanda_item09186a008025c533.shtml
When I attempt to log in to IPS, I receive this error message:
errSystemError-ct-sensorAPP.450 not responding, clientpipe failed
. How can I resolve this error?
A. In order to resolve this error, use the reset command in order to reboot the IPS.
Rate of this was helpful...

CSM / ASA IPS -- upstream signature package includes hundreds of retired signatures

CSM / ASA IPS -- upstream signature package includes hundreds of retired signatures
When I push new signatures that CSM downloads and applies for me, I get hundreds of retired signatures. I have tried to wipe signature policy and create fresh and anew - it seems as if CSM isn't marking 'new' signatures for application to existing signature configuration files. The deltas betwen previous versions do not get applied.
Is this a common occurance for other people running CSM?

Hi JP,
The signatures need to be enabled and unretired for them to function.
The following FAQ described this process in detail:
http://www.cisco.com/web/about/security/intelligence/ips_sig_faq.html#2
Hope this is helpful.
Regards
Neil Archibald
IPS Signature Development Team

Will IDS v4.1 software run on the IPS-4200 appliances?

I understand that Cisco IPS 5.0 software will run on the IDS-4200 series appliances (e.g. - IDS -4235).
Is the reverse true? Can I get Cisco IDS 4.1 to run on an IPS-4240 or an IPS-4255?
Just curious, since I may have to answer the question internally soon...
Thanks in advance,
Alex Arndt

Just an FYI the only Appliances/Modules that support 5.0 that do not support 4.1 are the ASA-SSM-AIP-10 and ASA-SSM-AIP-20.
These 2 modules are brand new and will only support the 5.0 version.
To read more about the 2 new modules refer to:
http://www.cisco.com/en/US/products/ps6120/products_data_sheet0900aecd802930c5.html

Signature Actions on IPS 4240

If a default action on a specific signature is configured to "produce alert" only, why is it that the IPS will also Log packet from the attacker? I would have thought that this would have required that the action "Log attacker packets" be selected as well.

Use the Installing and Using Cisco Intrusion Prevention System Manager Express 6.1 Configuring Policies and Cisco 4240-DC Intrusion Prevention Sensor guide.
http://www.cisco.com/en/US/prod/collateral/vpndevc/ps5729/ps5713/ps4077/ps5768/prod_bulletin0900aecd8030c5da.html
http://www.cisco.com/en/US/docs/security/ips/6.1/configuration/guide/ime/ime_policies.html

IOS IPS Automatic Signature Update

I will use cisco1941w.
I'd like to know, how to configure at CLI and where is the URL.
Is the bellow correct?
CLI
Router(config)# ip ips auto-update
Router(config-ips-auto-update)# occur-at 0 0-23 1-31 1-5
Router(config-ips-auto-update)# url https://www.cisco.com/cgi-bin/front.x/ida/locator/locator.pl
Router(config-ips-auto-update)# username XXX password XXX
URL
https://www.cisco.com/cgi-bin/front.x/ida/locator/locator.pl

Hello,
A. Hete is what the six files do:
• ios-ips-sigdef-default.xml: contains all the factory default signature definitions
• ios-ips-sigdef-delta.xml: contains signature definitions that have been changed from the default
• ios-ips-sigdef-typedef.xml: is a file that has all the signature parameter definitions
• ios-ips-sigdef-category.xml: has all the signature category information, such as category ios_ips basic and advanced
• ios-ips-seap-delta.xml: contains changes made to the default SEAP parameters
• ios-ips-seap-typedef.xml: contains all the SEAP parameter definitions
B. So the signature file (.pkg) is decompressed into these files and then 'idconf' loads them in memory.
Hence to copy signature database of one router to the other, we need to copy atleast first 4 files.
You only need to distribute the SEAP configuration if you modified any of the Signature Event Action Override configuration:
We do not have one single file that contains all the signatures. The signature package is installed in a certain way.
Hence we will need atleast first 4 files to copy of signature database from one router to the other.
C. Secondly, I dont know if auto-update will accept a file in .xmz package, I have not tested this.
But I am guessing it will look for a .pkg file and decompress it.
With copying a .xmz file, you may have to manually load it into memory using 'idconf' command.
D. Hence there is no one single configuration file that you copy off the external ftp server.
I guess, the only thing you can do is to have different routers update signatures at different times to reduce load on the network.
It is also not necessary to check for signature updates every hour.
Normal rate of adding new signature releases is every few days, so even if you check around once a day that should be ok.
Sid Chandrachud
TAC Security Solutions
Customer support engineer

IPS 4200 appliances and performance

Hi All
We're looking into purchasing an IDS/IPS appliance, but am concerned about thruput and perf issues. We don't have the budget to stretch to the multiGigabit models to monitor multiple points on our gigabit backbone and network in addition to doing IPS on our internet connections, we are restricted to going for either the 4215 or the 4235 - how do i judge what is best for our needs.
We'd use any appliance as follows;
1.)IPS mode for 10meg internet connection
2.)IPS mode for 1meg SDSL connection
3.)IDS mode on gigabit backbone. May need to support multiVLAN monitoring but not essential.
Obviously we need to make sure we have the right number of ports on the appliance but i'm concerened about thruput and the dropping of packets. Is there any test i can do to work out what our aggregate bandwidth will be. The 80mbps of the 4215 doesn't sound anywhere near enough, seeing as we'll be moving to a 3750 1000bT stack for all our switching needs and particularly if the appliance will be working in hybrid mode.
Relatively small network of about 100 nodes. Pls advise MA

Let me give this a shot. First off, some caveats. I'm assuming all your links (including your backbone) are copper Ethernet. Now, onto the response...
Answer to Q1:
Assuming scalability is not an issue (you don't plan on upgrading this connection, do you?), the IDS-4215 with the IDS-4FE card installed and running IPS v5.0 is the solution here.
Main advantages, the device is good for a total of 85 Mbps throughput, so no issues with oversubscription if deployed inline, as the sensor will be monitoring a line with the speed of the lowest capable device. To ensure it will work, you can hard code the line speed and duplex settings to force it. Furthermore, with the additional interfaces and the IPS software, it will be just as good as an IPS-4240 on the link, but without the cost.
Answer to Q2:
Same solution as Q1, since the sensor is more than powerful enough for the line speed. Again, if the connection is upgraded (say, to a fast DSL line), you'll still be OK if you deploy inline and hard code the line settings.
Answer to Q3:
This is the tricky one. Obviously, if you had a core switch that supported it, an IDSM-2 would be a great option. Alternative, as you've already stated, the IPS-4255 with its 600 Mbps throughput capability would work too. Unfortunately, you've identified the one thing that usually dissuades folks with small networks like yours from using these two solutions - cost. (Oops, no you didn't say that, so I'm just going to assume... And yes, I know the dangers of assuming, but I'm throwing caution to the wind.)
An IPS-4240 is capable of a total aggregate throughput of 250 Mbps. If you gig backbone is really underutilized (in other words, averaging less that 20% usage), you can use in IPS-4240 to good effect. The only problem is that it will start dropping packets the moment the throughput goes over its capacity. The good thing is that there is a signature designed to tell you just when this happens (SigID 993). You could try using the IPS-4240 and ensure it has SigID 993 enabled and see how it works out, but it won't last long if you're worried about losing packets because the utilization is routinely over 250 Mbps (or 25% of your gig line).
Another option, though this is actually pricier than buying an IPS-4255, would be to configure two SPAN ports on the backbone core switch and hang two IPS-4240 sensors off of it, one per SPAN. Configure the SPANs based on your key VLANs that you want to monitor and you have effectively created a 500 Mbps monitoring solution without resorting to using the high-end device or buying a 3rd party solution (say, an IDS load balancer...). Of course, if cost savings is an issue, I still think the IPS-4255 is the better choice, but your stated restrictions have me thinking that you may be prevented from using it thanks to a limitation in your procurement mechnism...
Anyway, despite your limitations, you can do it. You just need to be aware of and consider the potential issues.
I hope this helps,
Alex Arndt

IPS SCADA signatures

I have a Cisco CGR 2010 router running CGR2010-UNIVERSALK9-M, Version 15.2(3)T. I have been unable to locate the SCADA signatures mentioned here: http://www.cisco.com/en/US/prod/collateral/routers/ps10967/ps10977/whitepaper_c11-696141.pdf
When I load the latest signatures (Release S752) onto the router, I only see these categories:
adware/spyware         Adware/Spyware (more sub-categories)
all                    All Categories
attack                 Attack (more sub-categories)
ddos                   DDoS (more sub-categories)
dos                    DoS (more sub-categories)
email                  Email (more sub-categories)
instant_messaging      Instant Messaging (more sub-categories)
ios_ips                IOS IPS (more sub-categories)
l2/l3/l4_protocol      L2/L3/L4 Protocol (more sub-categories)
network_services       Network Services (more sub-categories)
os                     OS (more sub-categories)
other_services         Other Services (more sub-categories)
p2p                    P2P (more sub-categories)
reconnaissance         Reconnaissance (more sub-categories)
viruses/worms/trojans Viruses/Worms/Trojans (more sub-categories)
web_server             Web Server (more sub-categories)
Where do the SCADA signatures live?
Thank you in advance!

Hello Stephen
You seem to using a old version of IOS-IPS. Can you update IOS-IPS to the latest version like 152-3.T.
We were able to see SCADA category in version 152-3.T.
Regards
Pradeep

Resolving IPs to hostnames in IDS events

Is there any way to resolve the reported IP address in a signature that fired into a hostname? Here's the background as to why:
We have a customer with a custom signature. We have a list of authorized devices which basically tells us not to sound the alarms if a particular host fires this signature. All others, we need to let them know.
When this signature fires, it only shows the source IP address. Many of the authorized hosts are on a network that uses DHCP. So, we can't filter out by IP address since these are dynamic. All we know for certain are the hostnames that are authorized.
Any way to make the IDS resolve hostnames for a particular signature? Even for all signatures if a global command exists?
Thanks!!
Jim

I am not sure about resolving the IP on the IDS. Is it possible to make a DHCP reservation for a particular IP for the specified host? You typically just associate the MAC address with the desired IP. Then that host will always grab that particular IP in the DHCP range. Then you could filter by IP, since it will remain constant.

IPS 4200 Signature & Action IDs

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