2009 CWE/SANS Top 25 Most Dangerous Programming Errors http://cwe.mitre.org/top25/#CWE-20 Insecure Interaction Between Components These weaknesses are related to insecure ways in which data is sent and received between separate components, modules, programs, processes, threads, or systems. - CWE-20 <http://cwe.mitre.org/top25/#CWE-20>: Improper Input Validation - CWE-116 <http://cwe.mitre.org/top25/#CWE-116>: Improper Encoding or Escaping of Output - CWE-89 <http://cwe.mitre.org/top25/#CWE-89>: Failure to Preserve SQL Query Structure (aka 'SQL Injection') - CWE-79 <http://cwe.mitre.org/top25/#CWE-79>: Failure to Preserve Web Page Structure (aka 'Cross-site Scripting') - CWE-78 <http://cwe.mitre.org/top25/#CWE-78>: Failure to Preserve OS Command Structure (aka 'OS Command Injection') - CWE-319 <http://cwe.mitre.org/top25/#CWE-319>: Cleartext Transmission of Sensitive Information - CWE-352 <http://cwe.mitre.org/top25/#CWE-352>: Cross-Site Request Forgery (CSRF) - CWE-362 <http://cwe.mitre.org/top25/#CWE-362>: Race Condition - CWE-209 <http://cwe.mitre.org/top25/#CWE-209>: Error Message Information Leak Risky Resource Management The weaknesses in this category are related to ways in which software does not properly manage the creation, usage, transfer, or destruction of important system resources. - CWE-119 <http://cwe.mitre.org/top25/#CWE-119>: Failure to Constrain Operations within the Bounds of a Memory Buffer - CWE-642 <http://cwe.mitre.org/top25/#CWE-642>: External Control of Critical State Data - CWE-73 <http://cwe.mitre.org/top25/#CWE-73>: External Control of File Name or Path - CWE-426 <http://cwe.mitre.org/top25/#CWE-426>: Untrusted Search Path - CWE-94 <http://cwe.mitre.org/top25/#CWE-94>: Failure to Control Generation of Code (aka 'Code Injection') - CWE-494 <http://cwe.mitre.org/top25/#CWE-494>: Download of Code Without Integrity Check - CWE-404 <http://cwe.mitre.org/top25/#CWE-404>: Improper Resource Shutdown or Release - CWE-665 <http://cwe.mitre.org/top25/#CWE-665>: Improper Initialization - CWE-682 <http://cwe.mitre.org/top25/#CWE-682>: Incorrect Calculation Porous Defenses The weaknesses in this category are related to defensive techniques that are often misused, abused, or just plain ignored. - CWE-285 <http://cwe.mitre.org/top25/#CWE-285>: Improper Access Control (Authorization) - CWE-327 <http://cwe.mitre.org/top25/#CWE-327>: Use of a Broken or Risky Cryptographic Algorithm - CWE-259 <http://cwe.mitre.org/top25/#CWE-259>: Hard-Coded Password - CWE-732 <http://cwe.mitre.org/top25/#CWE-732>: Insecure Permission Assignment for Critical Resource - CWE-330 <http://cwe.mitre.org/top25/#CWE-330>: Use of Insufficiently Random Values - CWE-250 <http://cwe.mitre.org/top25/#CWE-250>: Execution with Unnecessary Privileges - CWE-602 <http://cwe.mitre.org/top25/#CWE-602>: Client-Side Enforcement of Server-Side Security Darly