Static Code Analysis
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Last revision (mm/dd/yy): 01/5/2012
Static Code Analysis is usually performed as part of a Code Review (also known as white-box testing) and is carried out at the Implementation phase of a Security Development Lifecycle (SDL). Static Code Analysis commonly refers to the running of Static Code Analysis tools that attempt to highlight possible vulnerabilities within 'static' (non-running) source code by using techniques such as Taint Analysis and Data Flow Analysis.
The UK Defense Standard 00-55 requires that Static Code Analysis be used on all 'safety related software in defense equipment'. 
There are various techniques to analyze static source code for potential vulnerabilities.
A static code analysis tool will often produce false positive results where the tool reports a possible vulnerability that in fact is not. This often occurs because the tool cannot be sure of the integrity and security of data as it flows through the application from input to output.
False positive results might be reported when analysing an application that interacts with closed source components or external systems because without the source code it is impossible to trace the flow of data in the external system and hence ensure the integrity and security of the data.
The use of static code analysis tools can also result in false negative results where vulnerabilities result but the tool does not report them. This might occur if a new vulnerability is discovered in an external component or if the analysis tool has no knowledge of the runtime environment and whether it is configured securely.
RIPS PHP Static Code Analysis Tool
OWASP LAPSE+ Static Code Analysis Tool
Also see Source Code Analysis Tools.
- OWASP Code Crawler (.NET & Java)
- OWASP LAPSE (Java)
- PMD (Java)
- FlawFinder (C/C++)
- Microsoft FxCop (.NET)
- Splint (C)
- FindBugs (Java)
- RIPS (PHP)
- Agnitio (Objective-C, C#, Java & Android)
- Armorize CodeSecure
- Checkmarx Cx Suite
- Rational AppScan Source Edition
 Ministry of Defence (MoD). (1997) SAFETY RELATED SOFTWARE IN DEFENSE EQUIPMENT [Online]. Available at: http://www.software-supportability.org/Docs/00-55_Part_2.pdf (Accessed: 5 January 2012).