IETF-61 OPSEC WG

OPSEC WG_______

Operational Security Capabilities for IP Network

Infrastructure IETF #61

IETF-61 OPSEC WG

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IETF-61 OPSEC WG

Front Administrativia

• Note scribe.• Jabber scribe (opsec) ietfxmpp.org• When speaking:

– Please identify yourself (for the scribes)– Don’t mumble

IETF-61 OPSEC WG

Agenda

1. Agenda bashing.2. The Charter. [ Pat/Ross]

<http://www.ietf.org/html.charters/opsec-charter.html>.

3. The Framework Doc. <draft-jones-opsec-framework-01.txt> * Overview (George) * Threats (Merike)

4. The Standards Survey Doc. <draft-lonvick-sec-efforts-01.txt>

5. The Survey of Service Provider Security Practices Doc. [ Merike ]

6. Go home.

IETF-61 OPSEC WG

Charter: Scope• The working group will list capabilities appropriate for

devices used in:• * Internet Service Provider (ISP) Networks• * Enterprise Networks

• The following areas are excluded:• * Wireless devices• * Small-Office-Home-Office (SOHO) devices• * Security devices (firewalls, Intrusion Detection

Systems, Authentication Servers)• * End Hosts

• The plan is to have multiple small documents

IETF-61 OPSEC WG

Charter: Outputs

1. Framework Document• The plan, scope, etc

2. Current Practices Document– * threats addressed,– * current practices for addressing the threat,– * protocols, tools and technologies extant at the time

of writing

3. Individual Capability Documents• The detail for the various categories

4. Profile Documents

IETF-61 OPSEC WG

Profiles/Capabilities in Charter

• Profiles:– ISP Operational Security Capabilities Profile– Enterprise Operational Security Capabilities Profile

• Capabilities:– Packet Filtering – Event Logging– In-Band management – Out-of-Band management– Configuration and Management Interface– Authentication, Authorization and Accounting (AAA)– Documentation and Assurance– Miscellaneous

IETF-61 OPSEC WG

Charter-related issues

• There are a lot of documents• The document tradeoff:

– One really big on versus many tiny ones.– We need lots of editors

IETF-61 OPSEC WG

Framework Doc

• <draft-jones-opsec-framework-01.txt>

• Specified in charter

IETF-61 OPSEC WG

OPSEC Working Group Framework Document

George Jones gmjones@mitre.org

November 9, 2004

IETF-61 OPSEC WG

Framework Overview

+ Framework defines docs, work, scope, threats, attacks, etc.

+ Standards Survey surveys related work (Chris)

+ Operator Practices Survey lists current practices (Merike)

+ Capability docs list capabilities to support current and future practices.

IETF-61 OPSEC WG

• - Framework Changes in -01:+ Attacks/Threat Model (Merike)+ 1,$s/Requirements/Capabilities/g

• - Framework Changes for -02 ? + Need to correlate charter and framework document lists. + Drop list of documents from framework ? + Need to clarify intended status of documents. + Reduce # of documents ?

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Standards Efforts

• <draft-lonvick-sec-efforts-01.txt>• Not currently a workgroup document

– Should it be?

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Survey of Current Practices

• <no-draft-yet>• Specified in charter

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Table of Contents• 1. Introduction• 2. Problem Statement• 3. Device Access Security• 3.1 Threat Description• 3.2 Best Current Practice• 3.2.1 Logical access• 3.2.2 Console Access• 3.2.3 HTTP• 3.2.4 SNMP• 4. Authentication / Authorization• 4.1 Threat Description• 4.2 Best Current Practice• 4.2.1 Device Access• 4.2.2 Routing• 4.2.3 MAC Address• 5. Filtering• 5.1 Threat Description• 5.2 Best Current Practice• 5.2.1 General Inbound Traffic Filters• 5.2.2 General Outbound Traffic Filters• 5.2.3 Device Access Filters• 5.2.4 Route Filters• 5.2.5 MAC Address Filters• 5.2.6 DoS Mitigation Filtering• 5.2.7 SinkHole / Blackhole• 5.2.8 uRPF• 6. Logging (accounting)

• 6.1 Threat Description• 6.2 Best Current Practice• 6.2.1 What traffic is logged• 6.2.2 What fields are logged• 6.2.3 How long are logs kept• 6.2.4 Local buffer vs syslog (for backup info)• 6.2.5 Authentication from peer to peer of log

files?• 6.2.6 Integrity check of log files?• 6.2.7 NTP source considerations• 7. Device Integrity• 7.1 Threat Description• 7.2 Best Current Practice• 7.2.1 Device Image Upgrade• 7.2.2 Device Configuration• 7.2.3 Management/Logging Information• 8. Specific Protocol/Service Concerns• 8.1 Threat Description• 8.2 Best Current Practice• 8.2.1 ICMP• 8.2.2 Generally Unused Services• 9. Policy/Procedural Considerations• 9.1 Threat Description• 9.2 Best Current Practice• 9.2.1 Equipment Software Update• 9.2.2 Equipment Configuration Change

IETF-61 OPSEC WG

Discussion/Administratia

• Time for Discussion• Maillist:

– General Discussion: opsec@ops.ietf.org– To Subscribe: opsec-request@ops.ietf.org

In Body: subscribe– Archive: http://ops.ietf.org/lists/opsec/