Introduced protections against system command injection #10
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| <version>1.26.0-SNAPSHOT</version> | ||
| </parent> | ||
| <artifactId>sample-application</artifactId> | ||
| <dependencies> |
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This library holds security tools for protecting Java API calls.
License: MIT ✅ | Open source ✅ | More facts
| </executions> | ||
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| </plugins> | ||
| </build> |
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This library holds security tools for protecting Java API calls.
License: MIT ✅ | Open source ✅ | More facts
Micro-Learning Topic: OS command injection (Detected by phrase)Matched on "command injection"In many situations, applications will rely on OS provided functions, scripts, macros and utilities instead of reimplementing them in code. While functions would typically be accessed through a native interface library, the remaining three OS provided features will normally be invoked via the command line or launched as a process. If unsafe inputs are used to construct commands or arguments, it may allow arbitrary OS operations to be performed that can compromise the server. Try a challenge in Secure Code WarriorHelpful references
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OS Command Injection
DescriptionOS Command Injection (also known as Shell Injection) is a type of injection vulnerability wherein commands injected by an attacker are executed as system commands on the host operating system. OS Command Injection attacks are caused by insufficient input validation, although they are only possible if the web application code incorporates operating system calls with user input embedded in the invocation. Not to be confused with Code Injection, OS Command Injection extends the preset functionality of the application to execute system commands, whereas Code Injection attacks allow the attacker to add their own code to be executed by the application. In certain circumstances, Code Injection could be promoted to OS Command Injection by using the facilities provided by the language. OS Command Injection vulnerabilities are language agnostic, potentially appearing in any language with the provision to call a system shell command. Unfortunately, their ubiquity is a result of many programming languages, application development frameworks, and database platforms providing OS command execution facilities as value add for application designers looking for expedience to implement new features. Command Injections are one of a number of injection attacks, all of which are very prevalent and capable of extremely high levels of compromise. Indeed, OWASP has listed injection attacks as one of the most dangerous web application security risks since 2013. Read moreImpactMalicious attackers can leverage OS Command Injection vulnerabilities to gain a foothold in the hosting infrastructure, pivot to connected systems throughout the organisation, execute unauthorised commands and fully compromise the confidentiality, integrity and availability of the application and the underlying system. There is no better publicly known breach that better illustrates the catastrophic fallout resulting from a successfully executed OS Command Injection than the infamous Equifax breach. Attackers were able to penetrate Equifax's systems by using a Command Injection attack, enabled by a vulnerability in a popular web framework. ScenariosOS Command Injections can be orchestrated on Windows and Unix systems, and they can affect any language that invokes a command via system shell. The classic scenario is a vulnerable program that calls the system("zip archive.zip " + filename)An attacker can exploit the code by leveraging special shell characters to append arbitrary commands at the end of the original one. The example below illustrates this in action; by sending zip archive.zip x; rm important_fileSince PreventionDevelopers must use structured mechanisms that automatically enforce the separation between data and code. Importantly, OS Command Injection vulnerabilities can be entirely prevented if developers stringently avoid OS Command call outs from the application layer. Alternative methods of implementing necessary levels of functionality almost always exist. If invoking the command shell is unavoidable, endeavor not to use functions that call out using a single string; rather, opt for functions that require a list of individual arguments. These functions typically perform appropriate quoting and filtering of arguments. TestingVerify that the application protects against OS command injection and that operating system calls use parameterized OS queries or use contextual command line output encoding.
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Thanks @pixeebot[bot] for opening this PR! For COLLABORATOR only :
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FeedbackGreat work on introducing protections against system command injection! The changes look good overall. Just a couple of minor suggestions:
- Runtime.getRuntime().exec("cmd.exe start " + applicationFile);
+ SystemCommand.runCommand(Runtime.getRuntime(), "cmd.exe start " + applicationFile);
Once these suggestions are addressed, this PR can be approved. Well done! 👍 |
👋 Hi there!Everything looks good!
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Potential issues, bugs, and flaws that can introduce unwanted behavior:
Code suggestions and improvements for better exception handling, logic, standardization, and consistency:
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PR Details of @pixeebot[bot] in java-design-patterns :
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Micro-Learning Topic: Code injection (Detected by phrase)Matched on "Code Injection"Code injection happens when an application insecurely accepts input that is subsequently used in a dynamic code evaluation call. If insufficient validation or sanitisation is performed on the input, specially crafted inputs may be able to alter the syntax of the evaluated code and thus alter execution. In a worst case scenario, an attacker could run arbitrary code in the server context and thus perform almost any action on the application server. Try a challenge in Secure Code WarriorHelpful references
Micro-Learning Topic: Injection attack (Detected by phrase)Matched on "Injection attack"Injection flaws, such as SQL, NoSQL, OS, and LDAP injection, occur when untrusted data is sent to an interpreter as part of a command or query. The attacker’s hostile data can trick the interpreter into executing unintended commands or accessing data without proper authorization. Source: https://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project Try a challenge in Secure Code WarriorHelpful references
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| } else { | ||
| // java Desktop not supported - above unlikely to work for Windows so try instead... | ||
| Runtime.getRuntime().exec("cmd.exe start " + applicationFile); | ||
| SystemCommand.runCommand(Runtime.getRuntime(), "cmd.exe start " + applicationFile); |
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Using Runtime.getRuntime().exec() to execute system commands can introduce security vulnerabilities, such as command injection. This is especially risky if applicationFile can be influenced by user input. Consider using a more secure method to execute system commands, such as the ProcessBuilder class, and ensure that any user input is properly sanitized.
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Important Review skippedBot user detected. To trigger a single review, invoke the You can disable this status message by setting the WalkthroughThis update enhances the project's dependency management by introducing the Java Security Toolkit as a managed dependency within the Changes
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Please double check the following review of the pull request:Issues counts
Changes in the diff
Identified Issues
Issue Explanations and FixesID 1Issue: The File: Lines: 79-81 Explanation: The current implementation replaces Fix: import io.github.pixee.security.SystemCommand;
import java.awt.Desktop;
import java.io.File;
import java.io.IOException;
public static void main(String[] args) {
try {
File applicationFile = new File("path/to/application");
if (Desktop.isDesktopSupported()) {
Desktop.getDesktop().open(applicationFile);
} else {
// java Desktop not supported - above unlikely to work for Windows so try instead...
try {
SystemCommand.runCommand(Runtime.getRuntime(), "cmd.exe start " + applicationFile);
} catch (Exception e) {
System.err.println("Failed to execute command: " + e.getMessage());
e.printStackTrace();
}
}
} catch (IOException ex) {
ex.printStackTrace();
}
}Explanation of the Fix: The fix involves adding a try-catch block around the Missing TestsTo ensure the new changes are working correctly and to prevent regressions, the following tests should be added:
Example Test Code: import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
import org.mockito.Mockito;
import java.io.IOException;
public class AppTest {
@Test
public void testSuccessfulCommandExecution() {
try {
SystemCommand.runCommand(Runtime.getRuntime(), "echo Hello");
} catch (Exception e) {
fail("Exception should not be thrown");
}
}
@Test
public void testExceptionHandling() {
try {
SystemCommand.runCommand(Runtime.getRuntime(), "invalid_command");
fail("Exception should be thrown");
} catch (Exception e) {
assertTrue(e instanceof IOException, "Expected IOException");
}
}
}Explanation: These tests ensure that the Summon me to re-review when updated! Yours, Gooroo.dev |
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Actionable comments posted: 0
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (3)
- page-object/pom.xml (2 hunks)
- page-object/sample-application/pom.xml (1 hunks)
- page-object/sample-application/src/main/java/com/iluwatar/pageobject/App.java (2 hunks)
Additional comments not posted (5)
page-object/sample-application/pom.xml (1)
36-41: Approved: Addition ofjava-security-toolkitdependency.The inclusion of the
java-security-toolkitdependency enhances the project's security capabilities without affecting existing configurations.page-object/pom.xml (2)
33-33: Approved: Addition ofjava-security-toolkitversion property.Centralizing the version control of
java-security-toolkithelps maintain consistency across the project.
72-80: Approved: Addition ofjava-security-toolkittodependencyManagement.Managing the
java-security-toolkitdependency ensures consistent usage across the project modules.page-object/sample-application/src/main/java/com/iluwatar/pageobject/App.java (2)
27-27: Approved: Import ofSystemCommand.The import of
SystemCommandindicates a move towards more secure command execution practices.
83-83: Approved: Use ofSystemCommand.runCommand.Replacing
Runtime.getRuntime().exec()withSystemCommand.runCommandenhances security by preventing command injection vulnerabilities.However, verify the implementation of
SystemCommandto ensure it meets security requirements.
Issues Summary1. Project not foundLogs Summary: Failed to execute goal org.sonarsource.scanner.maven:sonar-maven-plugin:3.9.1.2184:sonar (default-cli) on project java-design-patterns: Project not found.Failing Step: org.sonarsource.scanner.maven:sonar-maven-plugin:3.9.1.2184:sonar (default-cli) Related Source Files: java-design-patterns Related Failures: ℹ️ Help(You can turn this bot off by adding a comment/ai off, or force a refresh of this report with /ai ...)
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Hello @D0LLi. The PR is blocked on your approval. Please review it ASAP. |
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Hello @D0LLi. The PR is blocked on your approval. Please review it ASAP. |
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Hello @D0LLi. The PR is blocked on your approval. Please review it ASAP. |
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Hello @D0LLi. The PR is blocked on your approval. Please review it ASAP. |
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Seems you are using me but didn't get OPENAI_API_KEY seted in Variables/Secrets for this repo. you could follow readme for more information |
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Description has been updated! |
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Description
In this pull request, the following changes have been made:
versions.java-security-toolkitwith version1.2.0in thepom.xmlfile.java-security-toolkitas a managed dependency in thedependencyManagementsection of thepom.xml.java-security-toolkitas a direct dependency in thesample-applicationmodule'spom.xml.SystemCommandclass fromio.github.pixee.securitypackage inApp.java.Changes in
page-object/pom.xml:versions.java-security-toolkitwith version1.2.0.Changes in
page-object/sample-application/pom.xml:java-security-toolkitas a direct dependency.Changes in
page-object/sample-application/src/main/java/com/iluwatar/pageobject/App.java:SystemCommandfromio.github.pixee.securitypackage.Runtime.getRuntime().exec()withSystemCommand.runCommand()for running a command.These changes introduce the
java-security-toolkitdependency, manage it in the project, and update the runtime command execution using the providedSystemCommandutility.