Hadoop HDFS
  1. Hadoop HDFS
  2. HDFS-6368

TransferFsImage#receiveFile() should perform validation on fsImageName parameter

    Details

    • Type: Bug Bug
    • Status: Resolved
    • Priority: Minor Minor
    • Resolution: Not A Problem
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      Description

      Currently only null check is performed:

                if (fsImageName == null) {
                  throw new IOException("No filename header provided by server");
                }
                newLocalPaths.add(new File(localPath, fsImageName));
      

      Value of fsImageName, obtained from HttpURLConnection header, may be tainted.
      This may allow an attacker to access, modify, or test the existence of critical or sensitive files.

        Activity

          People

          • Assignee:
            Unassigned
            Reporter:
            Ted Yu
          • Votes:
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            Dates

            • Created:
              Updated:
              Resolved:

              Development