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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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# Application: Adobe Acrobat Reader DC
# Platforms: Windows,OSX
# Versions: 15.016.20045 and earlier
# Author: Sébastien Morin of COSIG
# Website: https://cosig.gouv.qc.ca/en/advisory/
# Twitter: @COSIG_
# Date: July 12, 2016
# CVE: CVE-2016-4207
# COSIG-2016-26

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1) Introduction
2) Report Timeline
3) Technical details
4) POC

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1) Introduction
================
Adobe Acrobat is a family of application software and Web services developed by Adobe Systems to view, create, manipulate, print and manage files in Portable Document Format (PDF).

(https://en.wikipedia.org/wiki/Adobe_Acrobat)

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2) Report Timeline
====================
2016-05-18: Sébastien Morin of COSIG report this vulnerability to Adobe PSIRT;
2016-06-08: Adobe PSIRT confirm this vulnerability;
2016-07-12: Adobe fixed the issue (APSB16-26);
2016-07-12: Advisory released by COSIG;

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3) Technical details
=====================
The vulnerability allows a remote attacker to execute malicious code or access to part of dynamically allocated memory using a user interaction
that opens a specially crafted PDF file containing an invalid font (.ttf ) including invalid data.

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4) POC
===========

https://cosig.gouv.qc.ca/wp-content/uploads/2016/07/COSIG-2016-26.pdf
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/40099.zip

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