Net V4.0

[Clinio Lofton]

PCIData Security Standard (PCI DSS) is a global standard that provides a baseline of technical and operational requirements designed to protect account data. The next evolution of the standard- PCI DSS v4.0- is now available.

This PCI DSS Resource Hub provides links to both standard documents and educational resources to help organizations become familiar with PCI DSS v4.0. Make sure to subscribe to the PCI Perspectives Blog to stay up to date on all news from PCI SSC.

The Implementing and Configuring Cisco Identity Services Engine (SISE) v4.0 course teaches you to deploy and use Cisco Identity Services Engine (ISE) v3.x, an identity and access control policy platform that simplifies the delivery of consistent, highly secure access control across wired, wireless, and VPN connections.

This hands-on course provides you with the knowledge and skills to implement and apply Cisco ISE capabilities to support use cases for Zero Trust security posture. These use cases include tasks such as policy enforcement, profiling services, web authentication and guest access services, BYOD, endpoint compliance services, and Terminal Access Controller Access Control Server (TACACS+) device administration. Through hands-on practice via lab exercises, you will learn how to use Cisco ISE to gain visibility into what is happening in your network, streamline security policy management, and contribute to operational efficiency.

I've learned that this is the result of the new build engine, msbuild.exe, but this file is actually auto-created and placed in my local temp directory (c:\Documents and Settings\me\Local Settings\Temp). Does anyone know why this file is created, and whether I can disable its creation?

Take a look at c:\program files\msbuild\microsoft.cpp\v4.0\microsoft.buildsteps.targets. It contains the GenerateTargetFrameworkMonikerAttribute target, that's the one that generates the file. The Condition element determines when it runs, GenerateTargetFrameworkAttribute is the value. That will always be true if the project settings ask for a /clr build. The comment in the target is very misleading, the hoopla about precompiled header files has nothing to do with the purpose of the target.

The [TargetFrameworkAttribute] it generates in the .cpp helper file is important, that tells the CLR on the machine on which the program runs what minimum version of .NET needs to be present to successfully execute the program. Its primary use is to automatically launch the installer for the .NET version that's needed, very nice feature.

LNK4221 is common and has no teeth, you can ignore it. Sadly the linker does not provide a documented way to suppress warnings, basic issue is that it cannot be specific enough to suppress only this one. Suppressing the helper .cpp would require editing the .targets file and breaks the auto-install feature, I cannot recommend that.

This file/process is necessary when WAS or other hosting environments need to be able to infer a target framework and other such cases. Example MSDN article (relating to usage with WAS). It's only an attribute, so it's inert and not much to worry about...

In cases where no such reliance will come into play, it gets more interesting. Aside from being redundant, making larger binaries and heating the processor, in TeamCity, the cleaning procedures when configured for incremental builds remove this file before a re-build. However the unfortunate side effect is that the build's dependency checking then incorrectly infers that a rebuild is necessary as illustrated by this sample message when turning the logging up by specifying /v:d[etailed]:-

The file is there to embed TargetFrameworkMoniker .NET assembly attribute. That is to (in future) help hosts work correctly with the appropriate CLR. (Sorry for vagueness I can't remember someone else is the expert). Ie', there's actually a reason for it :-)

I have a very large project that will not start construction until 2022 or 2023 and it will be under construction for several years. I therefore want to be careful about sunset dates. I'm thinking to register it under v4.0 and "cherry pick" v4.1 credits.

From looking at past sunset dates my guess is that v4/v4.1 registration will sunset 3 years after v5 becomes available. Then certification of v4/v4.1 would sunset 6 years after the registration sunset date.

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The Common Vulnerability Scoring System (CVSS) is an open framework forcommunicating the characteristics and severity of software vulnerabilities. CVSSconsists of four metric groups: Base, Threat, Environmental, and Supplemental.The Base group represents the intrinsic qualities of a vulnerability that areconstant over time and across user environments, the Threat group reflects thecharacteristics of a vulnerability that change over time, and the Environmentalgroup represents the characteristics of a vulnerability that are unique to auser's environment. Base metric values are combined with default values thatassume the highest severity for Threat and Environmental metrics to produce ascore ranging from 0 to 10. To further refine a resulting severity score, Threatand Environmental metrics can then be amended based on applicable threatintelligence and environmental considerations. Supplemental metrics do notmodify the final score, and are used as additional insight into thecharacteristics of a vulnerability. A CVSS vector string consists of acompressed textual representation of the values used to derive the score. Thisdocument provides the official specification for CVSS version 4.0.

CVSS is owned and managed by FIRST.Org, Inc. (FIRST), a US-based non-profitorganization, whose mission is to help computer security incident response teamsacross the world. FIRST reserves the right to update CVSS and this documentperiodically at its sole discretion. While FIRST owns all rights and interest inCVSS, it licenses it to the public freely for use, subject to the conditionsbelow. Membership in FIRST is not required to use or implement CVSS. FIRST does,however, require that any individual or entity using CVSS give properattribution, where applicable, that CVSS is owned by FIRST and used bypermission. Further, FIRST requires as a condition of use that any individual orentity which publishes CVSS data conforms to the guidelines described in thisdocument and provides both the score and the vector string so others canunderstand how the score was derived.

The Common Vulnerability Scoring System (CVSS) captures the principal technicalcharacteristics of software, hardware and firmware vulnerabilities. Its outputsinclude numerical scores indicating the severity of a vulnerability relative toother vulnerabilities.

CVSS is composed of four metric groups: Base, Threat, Environmental, andSupplemental. The Base Score reflects the severity of a vulnerability accordingto its intrinsic characteristics which are constant over time and assumes thereasonable worst-case impact across different deployed environments. The ThreatMetrics adjust the severity of a vulnerability based on factors, such as theavailability of proof-of-concept code or active exploitation. The EnvironmentalMetrics further refine the resulting severity score to a specific computingenvironment. They consider factors such as the presence of mitigations in thatenvironment and the criticality attributes of the vulnerable system. Finally,the Supplemental Metrics describe and measure additional extrinsic attributes ofa vulnerability, intended to add context.

Base Metrics, and optionally Supplemental Metrics, are provided by theorganization maintaining the vulnerable system, or a third party assessment ontheir behalf. Threat and Environmental information is available to only the endconsumer. Consumers of CVSS should enrich the Base metrics with Threat andEnvironmental metric values specific to their use of the vulnerable system toproduce a score that provides a more comprehensive input to risk assessmentspecific to their organization. Consumers may use CVSS information as input toan organizational vulnerability management process that also considers factorsthat are not part of CVSS in order to rank the threats to their technologyinfrastructure and make informed remediation decisions. Such factors mayinclude, but are not limited to: regulatory requirements, number of customersimpacted, monetary losses due to a breach, life or property threatened, orreputational impacts of a potential exploited vulnerability. These factors areoutside the scope of CVSS.

The benefits of CVSS include the provisioning of a standardized vendor andplatform agnostic vulnerability scoring methodology. It is an open framework,providing transparency to the individual characteristics and methodology used toderive a score.

The Base metric group represents the intrinsic characteristics of avulnerability that are constant over time and across user environments. It iscomposed of two sets of metrics: the Exploitability metrics and the Impactmetrics.

The Threat metric group reflects the characteristics of a vulnerability relatedto threat that may change over time but not necessarily across userenvironments. For example, confirmation that the vulnerability has neither beenexploited nor has any proof-of-concept exploit code or instructions publiclyavailable will lower the resulting CVSS score. The values found in this metricgroup may change over time.

The Supplemental metric group includes metrics that provide context as well asdescribe and measure additional extrinsic attributes of a vulnerability. Theresponse to each metric within the Supplemental metric group is to be determinedby the CVSS consumer, allowing the usage of an end-user risk analysis system toapply locally significant severity to the metrics and values. No metric will,within its specification, have any impact on the final CVSS score (e.g.CVSS-BTE). Consumer organizations may then assign importance and/or effectiveimpact of each metric, or set/combination of metrics, giving them more, less, orabsolutely no effect on the categorization, prioritization, and assessment ofthe vulnerability. Metrics and values will simply convey additional extrinsiccharacteristics of the vulnerability itself.

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