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Application:   Acrobat Reader DC

Platforms:   Windows

Versions:   15.008.20082.15957

CVE:   CVE-2015-7622

Author:   Francis Provencher of COSIG

Twitter:   @COSIG_



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

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1) Introduction
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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).[14]

The family comprises Acrobat Reader (formerly Adobe Reader), Acrobat (formerly Acrobat Exchange) and Acrobat.com. Thefreeware Acrobat Reader, available for several desktop and mobile platforms, can view, print and annotate PDF files.[15] Thecommercial proprietary Acrobat, available for Microsoft Windows and OS X only, can also create, edit, convert, digitally sign, encrypt, export and publish PDF files. Acrobat.com complements the family with a variety of enterprise content managementand file hosting services.

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

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2) Report Timeline
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2015-08-09: Francis Provencher of COSIG found the issue;
2015-08-11: Francis Provencher of COSIG report vulnerability to PSIRT;
2015-10-13: Adobe release a patch (APSB15-24)

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3) Technical details
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An error in the the PDF parser, could lead to a memory corruption when processing a crafted PDF with an invalid image.

Successful exploitation of the vulnerabilities may allow execution of arbitrary code, but requires tricking a user into opening or previewing a malicious file.

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4) POC

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http://protekresearchlab.com/exploits/COSIG-2015-001.pdf
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/38787.zip

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