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BSIMM lays out security blueprint




March 27, 2009 — 
Cigital and Fortify Software have put together a new maturity model, the Building Security In Maturity Model (BSIMM), to stimulate a cultural change when it comes to creating secure software.

Representatives from Cigital and Fortify conducted interviews and collected data from nine enterprise companies, such as Adobe, EMC, Google and Microsoft. The model is divided into 12 practices, falling under the categories of governance, intelligence, software security development life cycle (SSDL) touch points, and deployment.

According to the BSIMM, an integral piece of governance should be everyone involved in creating and deploying software attaining a common understanding of strategy, along with direction around security objectives. Proper compliance and policy must be in place and appropriate training should be given.

To gain knowledge of potential attacks, a software initiative must identify potential attackers, as well as document the attacks that have already happened and that caused the greatest organizational concern. The initiative must also provide security features and education on security and coding standards. The BSIMM lists architecture analysis, code review and security testing as the key SSDL touch points.

During deployment, software security professionals need to carry out penetration testing and monitor input to the software they run to spot attacks. Additionally, security professionals should ensure their ability to track unauthorized changes to applications and to detect unauthorized activity, according to the BSIMM.

When talking about the BSIMM, Cigital and Fortify stressed the importance of a strong software security group. An average software security group size should be about 1% of the size of the software development organization.

“Every single one of the nine companies that we studied to build the model has an active software security group,” said Gary McGraw, CTO of Cigital. “This suggests that if you’re trying to have software security in your organization carried out by the developers or network security, you should think about what [notable] companies are doing.”

The BSIMM states that software security groups should emphasize security education and mentoring rather than policing for security errors. It preaches the use of automated code review and black box testing.

McGraw said that the steps laid out in the BSIMM are not intended for software developers. Instead, they are intended for people that are trying to teach software developers how to do proper software security.

“Whoever runs your organization that’s worried about the ramifications of bad software security and business impact, that’s the person who needs to understand this work,” he said. “It’s about how to institute a cultural change to create, plan and execute a large scale software security initiative.”

“I don’t know of any other instance where the range of companies that we’re talking about have been willing to discuss their security activities,” said Brian Chess, cofounder and chief scientist of Fortify. “We can say if [that] you’re not doing something out of this core set of activities, you are an outlier. And you need to think about whether that’s a good thing or a bad thing.”


Related Search Term(s): Cigitalsecurity


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