Finding ID | Version | Rule ID | IA Controls | Severity |
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V-17518 | DTOO153 - Word | SV-18591r1_rule | ECSC-1 | Medium |
Description |
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By default, users can open files that were saved in pre-release versions of the new Office Open XML format, which underwent some minor changes prior to the final release of Office 2007. Open XML files usually have the following extensions: • .xlsb • .xlsx • .xlsm • .xltx • .xltm • .xlam If a vulnerability is discovered that affects these kinds of files, you can use this setting to protect your organization against attacks by temporarily preventing users from opening files in these formats until a security patch is available. By default, these file types are not blocked in Office 2007 products. |
STIG | Date |
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Microsoft Word 2007 | 2014-10-03 |
Check Text ( C-18835r1_chk ) |
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The policy value for User Configuration -> Administrative Templates -> Microsoft Office Word 2007 -> Block file formats -> Open “Block opening of pre-release versions of file formats new to Word 2007” will be set to “Enabled”. Procedure: Use the Windows Registry Editor to navigate to the following key: HKCU\Software\Policies\Microsoft\Office\12.0\Word\Security\FileOpenBlock Criteria: If the value Word12BetaFiles is REG_DWORD = 1, this is not a finding. |
Fix Text (F-17435r1_fix) |
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The policy value for User Configuration -> Administrative Templates -> Microsoft Office Word 2007 -> Block file formats -> Open “Block opening of pre-release versions of file formats new to Word 2007” will be set to “Enabled”. |