Chapter 7 Defining Signatures

Configuring Signatures

Configuring the Vulnerable OSes for a Signature

Use the vulnerable-oscommand in signature definition submode to configure the list of vulnerable OSes for a signature.

The following options apply:

 

 

 

 

general-os—Specifies all OS types

 

 

 

 

ios—Specifies the variants of Cisco IOS

 

 

 

 

mac-os—Specifies the variants of Macintosh OS

 

 

 

 

netware—Specifies Netware

 

 

 

 

other—Specifies any other OS

 

 

 

 

unix—Specifies the variants of UNIX

 

 

 

 

aix—Specifies the variants of AIX

 

 

 

 

bsd—Specifies the variants of BSD

 

 

 

 

hp-ux—Specifies the variants of HP-UX

 

 

 

 

irix—Specifies the variants of IRIX

 

 

 

 

linux—Specifies the variants of Linux

 

 

 

 

solaris—Specifies the variants of Solaris

 

 

 

 

windows—Specifies the variants of Microsoft Windows

 

 

 

 

windows-nt-2k-xp—Specifies the variants of Microsoft NT, 2000, and XP

 

 

 

 

win-nt—Specifies the specific variants of Windows NT

 

 

 

 

Configuring Vulnerable OSes

 

 

 

 

To configure the vulnerable OSes for a signature, follow these steps:

 

 

 

 

 

 

 

 

Step 1

Log in to the CLI using an account with administrator or operator privileges.

 

 

 

Step 2

Enter signature definition submode.

 

 

 

 

sensor# configure terminal

 

 

 

 

sensor(config)# service signature-definition sig1

 

 

 

Step 3

Specify the signature you want to configure.

 

 

 

 

sensor(config-sig)# signatures 6000 0

 

 

 

Step 4

Specify the vulnerable OSes for this signature.

 

 

 

 

sensor(config-sig-sig)# vulnerable-os linuxaix

 

 

 

Step 5

Verify the settings.

 

 

 

 

sensor(config-sig-sig)# show settings

 

 

 

 

sig-id: 60000

 

 

 

 

subsig-id: 0

 

 

 

 

-----------------------------------------------

 

 

 

 

 

alert-severity: medium <defaulted>

 

 

 

 

sig-fidelity-rating: 75 <defaulted>

 

 

 

 

promisc-delta: 0 <defaulted>

 

 

 

 

sig-description

 

 

 

 

-----------------------------------------------

 

 

 

 

 

sig-name: My Sig <defaulted>

 

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

7-14

 

 

OL-29168-01

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Configuring the Vulnerable OSes for a Signature, Configuring Vulnerable OSes

IPS4510K9 specifications

Cisco Systems has long been a leading player in network security, and its IPS (Intrusion Prevention System) series is a testament to its commitment to safeguarding digital environments. Among its notable offerings are the IPS4510K9 and IPS4520K9 models, both designed to provide advanced threat protection for mid-sized to large enterprise networks.

The Cisco IPS4510K9 and IPS4520K9 are distinguished by their cutting-edge features that help organizations defend against a myriad of cyber threats. These systems utilize a multi-layered approach to security, integrating intrusion prevention, advanced malware protection, and comprehensive visibility across the network.

One of the primary characteristics of the IPS4510K9 is its high performance. It boasts a throughput of up to 1 Gbps, making it suitable for environments that demand rapid data processing and real-time responses to threats. The IPS4520K9, on the other hand, enhances that capability with improved throughput of up to 2 Gbps, accommodating larger enterprises with heavier network traffic. These models are equipped with powerful processors that support complex signature matching and can intelligently distinguish between legitimate traffic and potential threats.

In addition to performance, both models are designed with scalability in mind. They can be easily integrated into existing Cisco infrastructures. This facilitates a seamless enhancement of security without causing significant interruptions to ongoing operations. Moreover, they offer flexible deployment options, allowing organizations to operate them inline or out of band depending on their specific needs.

The Cisco IPS4510K9 and IPS4520K9 leverage advanced detection technologies, utilizing a variety of signature types and heuristic analysis to detect known and unknown threats effectively. They are equipped with real-time alerting and reporting capabilities, giving security teams immediate visibility into potential breaches and enabling them to respond swiftly.

Furthermore, both models support a range of management options through the Cisco Security Manager, allowing for centralized administration, streamlined policy management, and enhanced monitoring capabilities. Automated updates ensure the systems remain current with the latest threat intelligence, vital for staying ahead of evolving cyber threats.

In summary, the Cisco Systems IPS4510K9 and IPS4520K9 represent powerful solutions for organizations seeking robust intrusion prevention capabilities. With their high performance, scalability, and advanced detection technologies, these systems are essential tools in the ever-changing landscape of cybersecurity, providing enterprises with the peace of mind needed to operate securely in today's digital world.