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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| dbgate-serve | npm | <= 7.1.8 | 7.1.9 |
Miggo AIRoot Cause AnalysisThe vulnerability is a classic remote code execution caused by improper input validation. User-controlled input, specifically the functionName and variableName parameters in JSON scripts, is directly concatenated into a string that is later executed as JavaScript code by a Node.js child process. The analysis of the patches between the vulnerable version (7.1.8) and the fixed version (7.1.9) confirms this. The core of the fix is the introduction of validation functions, assertValidJsIdentifier and assertValidShellApiFunctionName, which are applied to the user-controlled parameters before they are used in code generation. The vulnerable functions identified are the entry points that receive the malicious data (runners.start, runners.loadReader) and the functions that are directly involved in the insecure code generation (ScriptWriter.assignCore, compileShellApiFunctionName, ScriptWriterEval.assign). An attacker exploiting this vulnerability would cause these functions to appear in a runtime profile.
runners.startpackages/api/src/controllers/runners.js
ScriptWriter.assignCorepackages/tools/src/ScriptWriter.ts
compileShellApiFunctionNamepackages/tools/src/packageTools.ts
runners.loadReaderpackages/api/src/controllers/runners.js
ScriptWriterEval.assignpackages/tools/src/ScriptWriter.ts