The company Office 0patch had informed me by mail about the following: In Office 2003, the equation editor is not vulnerable. ![]() The speculation was that Microsoft no longer has access to the source code.Īnd there is another strange thing. In my German blog post Hat Microsoft Zugriff auf Teile des Office-Quellcodes verloren? I had also pointed out that Microsoft has patched the formula editor binary, which is a bit obscure. Microsoft had to take action because hackers already exploited this vulnerability (see Hacker are misusing CVE-2017-11882 in Office EQNEDT32.EXE). While Microsoft replaced the old EQNEDT32.EXE component with a new component in 2007, the older file is still included in all Office installations so that users can load and edit equations that were created with the old component. The equation editor EQNEDT32.EXE, which was included in Microsoft Office until 2007 but was still shipped with Office, received an update to close the gap on November 2017 patchday (I mentioned it in the blog post Microsoft Office security updates (November 14, 2017)). ![]() It turned out that this vulnerability was present in all Microsoft Office and Windows versions for the last 17 years. An article about the bugs can also be found here. In the summer of 2017, researchers from the cyber security company Embedi discovered a CVE-2017-11882 vulnerability in the Office formula editor. Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.Equation Edition s a sad chapter in Microsoft Office. In the Advanced Customization pane, expand Office Tools. In the Currently installed programs list, click Microsoft Office version 2003, and then click Change.Ĭlick to select the Choose advanced customization of applications check box, and then click Next. To Install Equation Editor in Microsoft Office 2003, follow these steps:Ĭlick Start, and then click Control Panel. In the Features to install, click the plus sign (+) next to Office Tools. Note In Microsoft Windows XP, click Start, and then click Control Panel.Ĭlick Change or Remove Programs, click Microsoft Office XP in the Currently installed programs list, and then click Change.Ĭlick Add or Remove Features, and then click Next. To Install Equation Editor in Microsoft Office XP, follow these steps:Ĭlick Start, point to Settings, and then click Control Panel. In the features tree, click the plus sign (+) next to Office Tools. In the Microsoft Office 2000 Maintenance Mode dialog box, click Add or Remove Features. In the Add/Remove Programs Properties dialog box, click your Microsoft Office 2000 installation, and then click Change. In Control Panel, double-click Add/Remove Programs. To Install Equation Editor in Microsoft Office 2000, follow these steps:Ĭlick Start, point to Settings, and then click Control Panel. To resolve this problem, use Maintenance mode to install the Equation Editor to your computer's hard disk with the Run from My Computer mode. This problem occurs even though the Equation Editor feature is set to Installed on First Use by default during installation and should be advertised on the list in the Object dialog box. ![]() When you click Object on the Insert menu of a Microsoft Office program, Microsoft Equation 3.0 is not available in the list of the Create New tab.
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