Adobe Flash Player 24.0.0.186 – ‘ActionGetURL2’ Out-of-Bounds Memory Corruption (2)

  • 作者： COSIG
    日期： 2017-01-11
  • 类别：
    平台：
  • 来源：https://www.exploit-db.com/exploits/41012/
  • Source: https://cosig.gouv.qc.ca/en/cosig-2017-01-en/

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# Application: Adobe Flash Player
# Platforms: Windows,OSX
# Versions: 24.0.0.186 and earlier
# Author: Francis Provencher of COSIG
# Website: https://cosig.gouv.qc.ca/en/advisory/
# Twitter: @COSIG_
# Date: January 10, 2017
# CVE-2017-2930
# COSIG-2016-35

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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 Flash Player (labeled Shockwave Flash in Internet Explorer and Firefox) is a freeware software for using content created
on the Adobe Flash platform, including viewing multimedia, executing rich Internet applications, and streaming video and audio.
Flash Player can run from a web browser as a browser plug-in or on supported mobile devices.[7] Flash Player was created by Macromedia
and has been developed and distributed by Adobe Systems since Adobe acquired Macromedia.

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

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2) Rapport de Coordination
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2016-11-13: Francis Provencher of COSIG report this vulnerability to Adobe PSIRT;
2016-11-14: Adobe PSIRT confirm this vulnerability;
2017-01-10: Adobe publish a patch (APSB17-02);
2017-01-10: Advisory released by COSIG;

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3) Technical details
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The vulnerability allows a remote attacker to execute malicious code or access to a part of the dynamically allocated memory using a user interaction
visiting a Web page or open a specially crafted SWF file, an attacker is able to create an “out of bound” memory corruption. A file with an “ActionRecord”
structure that contain an invalid value in “ActionGetURL2” could lead to remote code execution in the context of the current user.

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4) POC:
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https://cosig.gouv.qc.ca/wp-content/uploads/2017/01/COSIG-2017-01.zip
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/41012.zip

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