Evernote 6.1.2.2292 DLL Hijacking
Posted on 18 October 2016
Aloha, Summary Evernote contains a DLL hijacking vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on the targeted system. The vulnerability exists due to some DLL file is loaded by 'Evernote_6.1.2.2292.exe' improperly. And it allows an attacker to load this DLL file of the attackeras choosing that could execute arbitrary code without the user's knowledge. Affected Product: Evernote 6.1.2.2292 Fixed in: Evernote for Windows 6.3 (WINNOTE-15637 <https://evernote.com/security/updates/>) Tested on: Windows 7 Impact Attacker can exploit this vulnerability to load a DLL file of the attacker's choosing that could execute arbitrary code. This may help attacker to Successful exploit the system if user creates shell as a DLL. Vulnerability Scoring Details The vulnerability classification has been performed by using the CVSSv2 scoring system (http://www.first.org/cvss/). Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C) Proof of concept/demonstration: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1. Create a malicious 'dwmapi.dll' or 'ntmarta.dll' file and save it in your "Downloads" directory. 2. Download 'Evernote_6.1.2.2292.exe' from and save it in your "Downloads" directory. 3. Execute .exe from your "Downloads" directory. 4. Malicious dll file gets executed. Chao!! Himanshu Mehta
