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[SECURITY] Fix Zip Slip Vulnerability #609

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[SECURITY] Fix Zip Slip Vulnerability #609

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6 changes: 5 additions & 1 deletion pippo-controller-parent/pippo-controller/src/test/java/ro/pippo/DynamicJar.java
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Original file line number Diff line number Diff line change
Expand Up @@ -233,7 +233,11 @@ private void extract(Path jarPath, Path destDir) throws IOException {
Enumeration<JarEntry> enumEntries = jar.entries();
while (enumEntries.hasMoreElements()) {
JarEntry entry = enumEntries.nextElement();
File f = destDir.resolve(entry.getName()).toFile();
final Path zipEntryPath = destDir.resolve(entry.getName());
if (!zipEntryPath.normalize().startsWith(destDir.normalize())) {
throw new IOException("Bad zip entry");
}
File f = zipEntryPath.toFile();
f.getParentFile().mkdirs();
InputStream is = jar.getInputStream(entry);
FileOutputStream fos = new FileOutputStream(f);
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