SonarQube Community Build | User guide | Understanding rules | Security-related rules

Security-related rules

The SonarQube quality model has the following types of rules: 

  • Reliability (Bug)
  • Maintainability (Code Smell)
  • Security (Vulnerability) 
  • Security Hotspot

Security-related rules include Security rules and Security Hotspot rules. They are divided into two types: security-injection and security-configuration rules.

Security-injection rules

Security-injection rules are used to detect injection vulnerabilities. An injection vulnerability (also known as injection flaw or taint vulnerability) occurs when the inputs handled by your application are controlled by a user (potentially an attacker) and not validated or sanitized. When this occurs, the flow from sources (user-controlled inputs) to sinks (sensitive functions) will be presented. Common types include SQL InjectionDeserialization, and Command Injection vulnerabilities. 

To show the flow of tainted issues, SonarQube Server uses well-known taint analysis technology on source code which allows, for example, the detection of:

Security-configuration rules

The security-configuration rules are used to raise a security issue when:

  • A sensitive function is called with a wrong parameter (invalid cryptographic algorithm or TLS version).
  • A check (for example, a check_permissions() kind of function) is not done or is not in the correct order.
    This problem is likely to appear often when the program is executed.

Examples:

    • CWE-1004: Sensitive Cookie Without 'HttpOnly' Flag
    • CWE-297: Improper Validation of Certificate with Host Mismatch
    • CWE-327: Use of a Broken or Risky Cryptographic Algorithm

Differences between security issues (vulnerabilities) and hotspots

The security-related issues are divided into two categories: vulnerabilities and hotspots. 

Security hotspots have been introduced for security protections that have no direct impact on the overall application's security. With hotspots, we want to help developers understand information security risks, threats, impacts, root causes of security issues, and the choice of relevant software protections. In short, we really want to educate developers and help them develop secure, ethical, and privacy-friendly applications.

For more information about hotspots and vulnerabilities, see the Security hotspots page.

Security standards covered

Our security rules are classified according to well-established security standards such as:

OWASP Top 10 security standards covered by Sonar for version 2021
CategoryPythonJS/TSJavaC#C/C++PHP
A01:Broken Access Control
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A02: Cryptographic Failures 
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A03: Injection
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A04: Insecure Design
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A05: Security Misconfiguration
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A06: Vulnerable and Outdated Components

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A07: Identification and Authentication Failures
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A08: Software and Data Integrity Failures
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A09: Security Logging and Monitoring Failures
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A10: Server-Side Request Forgery
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CWE Top 25 security standards covered by Sonar for version 2023
CategoryPythonJS/TSJavaC#C/C++PHP
CWE-787: Out-of-bounds Write



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CWE-79:  Improper Neutralization of Input During
Web Page Generation ('Cross-site Scripting')
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CWE-89: Improper Neutralization of Special
Elements used in an SQL Command ('SQL Injection')
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CWE-416: Use After Free



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CWE-78: Improper Neutralization of Special
Elements used in an OS Command
('OS Command Injection')
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CWE-20: Improper Input Validation
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CWE-125: Out-of-bounds Read



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CWE-22: Improper Limitation of a Pathname
to a Restricted Directory ('Path Traversal')
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CWE-352: Cross-Site Request Forgery (CSRF)
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CWE-434: Unrestricted Upload of File with
Dangerous Type

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CWE-862: Missing Authorization





CWE-476: NULL Pointer Dereference
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CWE-287: Improper Authentication

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CWE-190: Integer Overflow or Wraparound

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CWE-502: Deserialization of Untrusted Data
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CWE-77: Improper Neutralization of Special
Elements used in a Command ('Command Injection')
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CWE-119: Improper Restriction of Operations
within the Bounds of a Memory Buffer




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CWE-798: Use of Hard-coded Credentials
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CWE-918: Server-Side Request Forgery (SSRF)
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CWE-306: Missing Authentication for Critical Function





CWE-362: Concurrent Execution using Shared
Resource with Improper Synchronization
('Race Condition')






CWE-269: Improper Privilege Management
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CWE-94: Improper Control of Generation of
Code ('Code Injection')
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CWE-863: Incorrect Authorization





CWE-276: Incorrect Default Permissions





You can search for a rule on rules.sonarsource.com. The standards to which a rule relates will be listed in the See section at the bottom of the rule description. Some detailed examples of Java vulnerabilities are listed here:


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