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Handle zip traversal vulnerability #92

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Handle zip traversal vulnerability #92

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7 changes: 7 additions & 0 deletions src/android/Zip.java
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Original file line number Diff line number Diff line change
Expand Up @@ -126,6 +126,13 @@ private void unzipSync(CordovaArgs args, CallbackContext callbackContext) {
dir.mkdirs();
} else {
File file = new File(outputDirectory + compressedName);
String canonicalPath = file.getCanonicalPath();
if (!canonicalPath.startsWith(outputDirectory)) {
String errorMessage = "Zip traversal security error";
callbackContext.error(errorMessage);
Log.e(LOG_TAG, errorMessage);
return;
}
file.getParentFile().mkdirs();
if(file.exists() || file.createNewFile()){
Log.w("Zip", "extracting: " + file.getPath());
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