Detect command injection vulnerabilities
Scan your code for the presence of vulnerabilities with over 4000 rules based on major security standards including CWE/SANS-25, OWASP Top 10, PCI-DSS, and more.
Integrate with your IDE to find flaws earlier
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Create action plans to reach your security goals
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What is OS command injection?
Command injections (a.k.a. cmd injections) are among the most common types of attacks on the internet. This is due to the nature of web applications, which makes it possible to have many entry points where malicious commands can be injected.
Forms with unvalidated entry facilitate entering “extra” commands, which are integrated into the default command that is executed by the operating system (OS). Furthermore, certain types of functions, like system() and exec(), use the environment of the program that calls them. Attackers can take advantage of this functionality and influence the behavior of these calls.
Command injection is different from code injection, as the latter allows attackers to add code that is executed by the application. Command injection, instead, extends the functionality of the application executing system commands. An attacker does not need to inject code at all.
The consequences of a command injection attack can be potentially devastating. An attacker could:
- Execute arbitrary commands with elevated privileges
- Access data and manipulate it or delete it
- Break the application or website
- Compromise the hosting infrastructure
- Gain access to other systems within the organization.
How Can You Prevent Command Injection Attacks?
Command injection attacks are common. Fortunately, there are several strategies available to defend against them.
Validate user input
Validate user input as close to the external interface as possible, to ensure that entered data contains only expected inputs.
Review used languages
Java, PHP, Asp.Net, and Python are less susceptible to command injection because there is a framework between the application and the operating system.
Avoid calling OS commands directly
Built-in library functions are a very good alternative to OS commands, and they cannot be manipulated to perform tasks other than those intended.
Use Static Code Analysis
Analyze your source code with Kiuwan Code Security to discover command injection vulnerabilities as early as possible in the SDLC.
Make Command Injection Prevention Part of your DevOps Process
Kiuwan Code Security integrates with leading CI/CD tools so that you can take a DevOps approach to command injection prevention. Scan your code securely on your own local server. Upload scan results to the cloud and share them with your team. Work on remediating found vulnerability issues with action plans and calculated effort. Customize your plans based on your real resources and team’s needs. Use the plan to track progress towards your goals.
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