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[SECURITY] Fix Partial Path Traversal Vulnerability #57

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[SECURITY] Fix Partial Path Traversal Vulnerability #57

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2 changes: 1 addition & 1 deletion ...dk-s3/src/main/java/com/ibm/cloud/objectstorage/services/s3/transfer/TransferManager.java
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Original file line number Diff line number Diff line change
Expand Up @@ -1512,7 +1512,7 @@ public MultipleFileDownload downloadDirectory(String bucketName, String keyPrefi

private boolean leavesRoot(File localBaseDirectory, String key) {
try {
return !new File(localBaseDirectory, key).getCanonicalPath().startsWith(localBaseDirectory.getCanonicalPath());
return !new File(localBaseDirectory, key).getCanonicalFile().toPath().startsWith(localBaseDirectory.getCanonicalFile().toPath());
} catch (IOException e) {
throw new RuntimeException("Unable to canonicalize paths", e);
}
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