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CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection), page 32

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The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

What the weakness is: CWE-74 at MITRE

Related attack patterns (CAPEC): 37
  • CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters Likelihood: Medium · Severity: Medium
  • CAPEC-6 Argument Injection Likelihood: High · Severity: High
  • CAPEC-7 Blind SQL Injection Likelihood: High · Severity: High
  • CAPEC-8 Buffer Overflow in an API Call Likelihood: High · Severity: High
  • CAPEC-9 Buffer Overflow in Local Command-Line Utilities Likelihood: High · Severity: High
  • CAPEC-10 Buffer Overflow via Environment Variables Likelihood: High · Severity: High
  • CAPEC-13 Subverting Environment Variable Values Likelihood: High · Severity: Very High
  • CAPEC-14 Client-side Injection-induced Buffer Overflow Likelihood: Medium · Severity: High
  • CAPEC-24 Filter Failure through Buffer Overflow Likelihood: High · Severity: High
  • CAPEC-28 Fuzzing Likelihood: High · Severity: Medium
  • CAPEC-34 HTTP Response Splitting Likelihood: Medium · Severity: High
  • CAPEC-42 MIME Conversion Likelihood: High · Severity: High
  • CAPEC-43 Exploiting Multiple Input Interpretation Layers Likelihood: Medium · Severity: High
  • CAPEC-45 Buffer Overflow via Symbolic Links Likelihood: High · Severity: High
  • CAPEC-46 Overflow Variables and Tags Likelihood: High · Severity: High
  • CAPEC-47 Buffer Overflow via Parameter Expansion Likelihood: Medium · Severity: High
  • CAPEC-51 Poison Web Service Registry Likelihood: High · Severity: Very High
  • CAPEC-52 Embedding NULL Bytes Likelihood: High · Severity: High
  • CAPEC-53 Postfix, Null Terminate, and Backslash Likelihood: High · Severity: High
  • CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic Likelihood: High · Severity: High
  • CAPEC-67 String Format Overflow in syslog() Likelihood: High · Severity: Very High
  • CAPEC-71 Using Unicode Encoding to Bypass Validation Logic Likelihood: Medium · Severity: High
  • CAPEC-72 URL Encoding Likelihood: High · Severity: High
  • CAPEC-76 Manipulating Web Input to File System Calls Likelihood: High · Severity: Very High
  • CAPEC-78 Using Escaped Slashes in Alternate Encoding Likelihood: High · Severity: High
  • CAPEC-79 Using Slashes in Alternate Encoding Likelihood: High · Severity: High
  • CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic Likelihood: High · Severity: High
  • CAPEC-83 XPath Injection Likelihood: High · Severity: High
  • CAPEC-84 XQuery Injection Likelihood: High · Severity: Very High
  • CAPEC-101 Server Side Include (SSI) Injection Likelihood: High · Severity: High
  • CAPEC-105 HTTP Request Splitting Likelihood: Medium · Severity: High
  • CAPEC-108 Command Line Execution through SQL Injection Likelihood: Low · Severity: Very High
  • CAPEC-120 Double Encoding Likelihood: Low · Severity: Medium
  • CAPEC-135 Format String Injection Likelihood: High · Severity: High
  • CAPEC-250 XML Injection Likelihood: High
  • CAPEC-267 Leverage Alternate Encoding Likelihood: High · Severity: High
  • CAPEC-273 HTTP Response Smuggling Likelihood: Medium · Severity: High

The attack patterns MITRE's CAPEC relates to CWE-74, as MITRE names them. Credits.

Ask an AI about CWE-74

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Show the promptExplain CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component and how to prevent and detect it in code. Use https://cwe.mitre.org/data/definitions/74.html and https://cve.bz/cve/cwe/74?via=ask-ai-copy for recent CVEs with this weakness. Cite the sources.

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