CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
86.6%
#####################################################################################
# Application: Adobe Acrobat Reader DC
# Platforms: Windows,OSX
# Versions: 15.016.20045 and earlier
# Author: SΓ©bastien Morin of COSIG
# Website: https://cosig.gouv.qc.ca/en/advisory/
# Twitter: @COSIG_
# Date: July 12, 2016
# CVE: CVE-2016-4208
# COSIG-2016-27
#####################################################################################
1) Introduction
2) Report Timeline
3) Technical details
4) POC
#####################################################################################
================
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)
#####################################################################################
====================
2) Report Timeline
====================
2016-05-18: SΓ©bastien 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;
#####################################################################################
=====================
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.
#####################################################################################
===========
4) POC
===========
https://cosig.gouv.qc.ca/wp-content/uploads/2016/07/COSIG-2016-27.pdf
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/40098.zip
####################################################################################
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
86.6%