![]() ![]() Uncheck the "Display PDF in browser" checkbox.Do not access PDF documents from untrusted sourcesDo not open unfamiliar or unexpected PDF documents, particularly those hosted on websites or delivered as email attachments. If this workaround is applied, it may also mitigate future vulnerabilities.To prevent PDF documents from automatically being opened in a web browser, do the following:1. Windows Registry Editor Version 5.00"EditFlags"=hex:00,00,00,00ĭisable the display of PDF documents in the web browserPreventing PDF documents from opening inside a web browser will partially mitigate this vulnerability. ![]() This behavior can be reverted to a safer option that prompts the user by importing the following as a. If JavaScript must be enabled, this feature may be useful when specific APIs are known to be vulnerable or used in attacks.Prevent Internet Explorer from automatically opening PDF documentsThe installer for Adobe Reader and Acrobat configures Internet Explorer to automatically open PDF files without any user interaction. Acrobat JavaScript can be disabled using the Preferences menu (Edit -> Preferences -> JavaScript uncheck Enable Acrobat JavaScript).Īdobe provides a framework to blacklist specific JavaScipt APIs. For a fresh installation, first install Adobe Reader 9.3.0 or 8.2.0 and then use the automatic update feature or install the appropriate update referenced in APSB10-09.ĭisable JavaScript in Adobe Reader and Acrobatĭisabling JavaScript may prevent some exploits from resulting in code execution. ![]() Users are encouraged to read Adobe Security Bulletin APSB10-09 and update vulnerable versions of Adobe Reader and Acrobat.Īdobe does not offer standalone installers of Reader or Acrobat versions 9.3.2 or 8.2.2. Adobe has released updates to address this issue. ![]()
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