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Category:   Application (Generic)  >   Apple Numbers Vendors:   Apple
Apple Numbers RC4 Encryption Lets Users Obtain Potentially Sensitive Information from Password Protected Exported PDFs
SecurityTracker Alert ID:  1038134
SecurityTracker URL:  http://securitytracker.com/id/1038134
CVE Reference:   CVE-2017-2391   (Links to External Site)
Updated:  Mar 27 2017
Original Entry Date:  Mar 27 2017
Impact:   Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 4.1
Description:   A vulnerability was reported in Apple Numbers. A user can obtain potentially sensitive information from exported documents.

The iWork software uses the weak 40-bit RC4 encryption algorithm when exporting password-protected PDF documents. A user with access to the document can decrypt the document to obtain potentially sensitive information from the document.

Philipp Eckel of ThoughtWorks reported this vulnerability.

Impact:   A user with access to exported PDF documents can obtain potentially sensitive information from the password protected exported PDF.
Solution:   The vendor has issued a fix (4.1).

The vendor advisory is available at:

https://support.apple.com/en-us/HT207595

Vendor URL:  support.apple.com/en-us/HT207595 (Links to External Site)
Cause:   Access control error
Underlying OS:  Apple (iOS), UNIX (macOS/OS X)

Message History:   None.


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