WebApp Sec mailing list archives
RE: Threat Modelling
From: brennan stewart <brennan () ideahamster org>
Date: 22 May 2004 13:30:33 -0400
The tools used for Risk Management in certification & accreditation (NIACAP/DITSCAP) are very effective for threat modeling. Some of them are high level, and others can be technical. The problem with them though, is their extreme price tags, proprietary content, lack of component re-usability, and perhaps some information wouldn't be to the technical level security professionals would require. They also don't have the level of integration that is really vital. While I know the initial thread was discussing Threat Modeling, it appears there is a huge gap in the comprehensive risk assessment/threat management arena (even with commercial software) It would appear that an open source solution would fit the bill for this. My ideas would take it far past mere threat modeling though for a more complete, quantitative picture of risk, mitigations, dollar amounts, residual risk, etc. Some sample requirements: Asset detailing, currency value assignment Complete threat listing, in DB Attacks\exposures\etc matched to the OSVDB (maybe the legacy CVE/ICAT also) Logic to understand system configurations (Linux/Unix/Windows/Cisco/etc) preloaded with sample hardening, and scoring mechanisms (NIST 800 series) Logic to understand policies + DB Logic to understand legal requirements + DB (swap requirements by country/business/etc) Network aggregation Then, some nice reporting functions to top it off (continued) I know many of these data sources exist already individually. regards, Brennan On Fri, 2004-05-21 at 04:58, Brewis, Mark wrote:
-----Original Message----- From: Mark Curphey [mailto:mark () curphey com] CRAMM is a general / generic Risk Assessment tool for information securtity.For those who don't know, CRAMM is a high-level tool designed to model risk at the physical, policy and procedural level, rather than the technical. Early versions were difficult to use, and even harder to interpret. The ISO 17799 aligned version is far more powerful, although it needs someone skilled to drive it. A more technical, network-level risk assessment/threat modelling tool back in the late 1990's was the L3 Network Security Expert/Retriever, a (for the time) sophisticated network mapping and risk analysis system . It was bought by Symantec about 2000 and fairly promptly disappeared. If I remember correctly, you were able to define any type of custom threats and countermeasures, and model them with a reasonable level of granularity. I only ever used it to model systems, rather than applications, but it was a really interesting hybrid tool. Both tools use/used some variation of the standard: * Define Assets * Define Vulnerabilities * Define Threats * Define Mitigation Strategies within * Technical * Management * Operational Risk-Remediation areas. Neither of these addresses your requirements (particularly L3, since it appears to have gone), although I think the L3 tool(s) came closest. There isn't anything I know of that even comes close to doing some of this, never mind everything. Most of the case and sequence diagrams I've seen have been manually defined and Visio drawn (paradoxically, probably the main utility that helped kill off L3 Expert/Retriever). Risk modelling has been extrapolated from those, in a generally ad hoc fashion. In many respects, I think you've answered your own question - there is a gap in this area. If Symantec still have the L3 code base lying around (and it didn't metamorphose into the Vulnerability Assessment product) it might be worth dusting down. Mark Mark Brewis Security Consultant EDS UK Information Assurance Group Wavendon Tower Milton Keynes Buckinghamshire MK17 8LX. Tel: +44 (0)1908 28 4013 Mbl: +44 (0)7989 291 648 Fax: +44 (0)1908 28 4393 E@: mark.brewis () eds com This email is confidential and intended solely for the use of the individual(s) to whom it is addressed. Any views or opinions presented are solely those of the author. If you are not the intended recipient, be advised that you have received this email in error and that any use, dissemination, forwarding, printing, or copying of this mail is strictly prohibited. Precautions have been taken to minimise the risk of transmitting software viruses, but you must carry out your own virus checks on any attachment to this message. No liability can be accepted for any loss or damage caused by software viruses.
Attachment:
signature.asc
Description: This is a digitally signed message part
Current thread:
- RE: Threat Modelling Brewis, Mark (May 21)
- RE: Threat Modelling brennan stewart (May 22)
- RE: Threat Modelling Mark Curphey (May 22)
- Re: Threat Modelling Frank O'Dwyer (May 23)
- RE: Threat Modelling Mark Curphey (May 23)
- Re: Threat Modelling Frank O'Dwyer (May 23)
- RE: Threat Modelling Mark Curphey (May 22)
- RE: Threat Modelling brennan stewart (May 23)
- Re: Threat Modelling mfranz (May 23)
- Code Signing Certificate & Chat software george eapen (May 26)
- RE: Threat Modelling brennan stewart (May 22)
- <Possible follow-ups>
- RE: Threat Modelling Brewis, Mark (May 23)
- Re: Threat Modelling Frank O'Dwyer (May 25)
- RE: Threat Modelling Runion Mark A FGA DOIM WEBMASTER(ctr) (May 24)