Appendix B Signature Engines

Service Engines

Table B-18

Service DNS Engine Parameters (continued)

 

 

 

 

 

Parameter

 

Description

Value

 

 

 

specify-query-jump-count-exceeded

(Optional) Enables query jump count

no yes

{yes no}

 

exceeded:

 

 

 

•

query-jump-count-exceeded—DNS

 

 

 

 

compression counter.

 

 

 

 

specify-query-opcode {yes no}

(Optional) Enables query opcode:

0 to 65535

 

 

• query-opcode—Specifies the DNS

 

 

 

 

Query Opcode 1 byte Value.

 

 

 

 

specify-query-record-data-invalid

(Optional) Enables query record data

no yes

{yes no}

 

invalid:

 

 

 

•

query-record-data-invalid—Specifiest

 

 

 

 

he DNS Record Data incomplete.

 

 

 

 

specify-query-record-data-len {yes

(Optional) Enables the query record data

0 to 65535

no}

 

length:

 

 

 

•

query-record-data-len—Specifies

 

 

 

 

the DNS Response Record Data

 

 

 

 

Length.

 

 

 

 

specify-query-src-port-53 {yes no}

(Optional) Enables the query source port

no yes

 

 

53:

 

 

 

 

•

query-src-port-53—Specifies the

 

 

 

 

DNS packet source port 53.

 

 

 

 

specify-query-stream-len {yes no}

(Optional) Enables the query stream

0 to 65535

 

 

length:

 

 

 

•

query-stream-len—Specifies the

 

 

 

 

DNS Packet Length.

 

 

 

 

specify-query-type {yes no}

(Optional) Enables the query type:

0 to 65535

 

 

• query-type—Specifies the DNS

 

 

 

 

Query Type 2 Byte Value.

 

 

 

 

specify-query-value {yes no}

(Optional) Enables the query value:

no yes

 

 

• query-value—Specifies the Query 0

 

 

 

 

Response 1.

 

 

 

 

 

 

For More Information

For more information on the parameters common to all signature engines, see Master Engine, page B-4.

Service FTP Engine

The Service FTP engine specializes in FTP port command decode, trapping invalid port commands and the PASV port spoof. It fills in the gaps when the String engine is not appropriate for detection. The parameters are Boolean and map to the various error trap conditions in the port command decode. The Service FTP engine runs on TCP ports 20 and 21. Port 20 is for data and the Service FTP engine does not do any inspection on this. It inspects the control transactions on port 21.

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

 

OL-29168-01

 

 

B-41

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Service FTP Engine
Page 650 Page 652

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.
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