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feat: merged feat for cryptography detection
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140 changes: 140 additions & 0 deletions
140
src/proxy/processors/push-action/checkCryptoImplementation.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| const Step = require('../../actions').Step; | ||
|
|
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| // Common encryption-related patterns and keywords | ||
| const CRYPTO_PATTERNS = { | ||
| // Known non-standard encryption algorithms | ||
| nonStandardAlgorithms: [ | ||
| 'xor\\s*\\(', | ||
| 'rot13', | ||
| 'caesar\\s*cipher', | ||
| 'custom\\s*encrypt', | ||
| 'simple\\s*encrypt', | ||
| 'homebrew\\s*crypto', | ||
| 'custom\\s*hash' | ||
| ], | ||
|
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| // Suspicious operations that might indicate custom crypto Implementation | ||
| suspiciousOperations: [ | ||
| 'bit\\s*shift', | ||
| 'bit\\s*rotate', | ||
| '\\^=', | ||
| '\\^', | ||
| '>>>', | ||
| '<<<', | ||
| 'shuffle\\s*bytes' | ||
| ], | ||
|
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| // Common encryption-related variable names | ||
| suspiciousVariables: [ | ||
| 'cipher', | ||
| 'encrypt', | ||
| 'decrypt', | ||
| 'scramble', | ||
| 'salt(?!\\w)', | ||
| 'iv(?!\\w)', | ||
| 'nonce' | ||
| ] | ||
| }; | ||
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| function analyzeCodeForCrypto(diffContent) { | ||
| const issues = []; | ||
| // Check for above mentioned cryto Patterns | ||
| if(!diffContent) return issues; | ||
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| CRYPTO_PATTERNS.nonStandardAlgorithms.forEach(pattern => { | ||
| const regex = new RegExp(pattern, 'gi'); | ||
| const matches = diffContent.match(regex); | ||
| if (matches) { | ||
| issues.push({ | ||
| type: 'non_standard_algorithm', | ||
| pattern: pattern, | ||
| matches: matches, | ||
| severity: 'high', | ||
| message: `Detected possible non-standard encryption algorithm: ${matches.join(', ')}` | ||
| }); | ||
| } | ||
| }); | ||
|
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| CRYPTO_PATTERNS.suspiciousOperations.forEach(pattern => { | ||
| const regex = new RegExp(pattern, 'gi'); | ||
| const matches = diffContent.match(regex); | ||
| if (matches) { | ||
| issues.push({ | ||
| type: 'suspicious_operation', | ||
| pattern: pattern, | ||
| matches: matches, | ||
| severity: 'medium', | ||
| message: `Detected suspicious cryptographic operation: ${matches.join(', ')}` | ||
| }); | ||
| } | ||
| }); | ||
|
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| CRYPTO_PATTERNS.suspiciousVariables.forEach(pattern => { | ||
| const regex = new RegExp(pattern, 'gi'); | ||
| const matches = diffContent.match(regex); | ||
| if (matches) { | ||
| issues.push({ | ||
| type: 'suspicious_variable', | ||
| pattern: pattern, | ||
| matches: matches, | ||
| severity: 'low', | ||
| message: `Detected potential encryption-related variable: ${matches.join(', ')}` | ||
| }); | ||
| } | ||
| }); | ||
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| return issues; | ||
| } | ||
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| const exec = async (req, action) => { | ||
| const step = new Step('checkCryptoImplementation'); | ||
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| try { | ||
| let hasIssues = false; | ||
| const allIssues = []; | ||
|
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| for (const commit of action.commitData) { | ||
| const diff = commit.diff || ''; | ||
| const issues = analyzeCodeForCrypto(diff); | ||
|
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||
| if (issues.length > 0) { | ||
| hasIssues = true; | ||
| allIssues.push({ | ||
| commit: commit.hash, | ||
| issues: issues | ||
| }); | ||
| } | ||
| } | ||
|
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| if (hasIssues) { | ||
| step.error = true; | ||
|
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| const errorMessage = allIssues.map(commitIssues => { | ||
| return `Commit ${commitIssues.commit}:\n` + | ||
| commitIssues.issues.map(issue => | ||
| `- ${issue.severity.toUpperCase()}: ${issue.message}` | ||
| ).join('\n'); | ||
| }).join('\n\n'); | ||
|
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||
| step.setError( | ||
| '\n\nYour push has been blocked.\n' + | ||
| 'Potential non-standard cryptographic implementations detected:\n\n' + | ||
| `${errorMessage}\n\n` + | ||
| 'Please use standard cryptographic libraries instead of custom implementations.\n' + | ||
| 'Recommended: Use established libraries like crypto, node-forge, or Web Crypto API.\n' | ||
| ); | ||
| } | ||
|
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| action.addStep(step); | ||
| return action; | ||
| } catch (error) { | ||
| step.error = true; | ||
| step.setError(`Error analyzing crypto implementation: ${error.message}`); | ||
| action.addStep(step); | ||
| return action; | ||
| } | ||
| }; | ||
|
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| // exec.displayName = 'checkCryptoImplementation.exec'; | ||
| exports.exec = exec; | ||
| exports.analyzeCodeForCrypto = analyzeCodeForCrypto; |
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