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Research > Zero-Day Tracker > 20130613

Adobe Flash Clickjacking Vulnerability

Date Disclosed:
8/20/2011

Date Patched:
Due to the nature of how Flash is implemented in IE and Chrome, an exact fix date is difficult to state; this vulnerability was fixed roughly in mid-2013.

Vendor:
Adobe, Google (embedded Flash in Chrome)

Affected Software:
Adobe Flash in Chrome and Internet Explorer

Description:
Adobe Flash in Chrome and Internet Explorer allows malicious websites to create transparent Flash objects which allow access to the camera and audio resources. Users may inadvertently click on transparent Flash objects, enabling resources that may expose sensitive information to attackers. 

Severity:
Moderate

Code Execution:
No.

Impact:
Clickjacking
Attackers may add transparent layers to a website to force users to inadvertently click on UI elements that the user cannot see. This may allow the attacker to perform user-initiated actions, such as enabling a camera or microphone. If successfully exploited, an attacker may gain access to sensitive information.

Mitigation:
Disable Flash in Chrome and Internet Explorer. Additionally, disable webcams or microphones when not in use.

Protection:

BeyondTrust's Retina® Network Security Scanner scans devices to detect for this vulnerability.
  • 19257 - Google Chrome Clickjacking Vulnerability (20130626) - UNIX/Linux
  • 19416 - Google Chrome Clickjacking Vulnerability (20130626) - Windows
  • 19417 - Google Chrome Clickjacking Vulnerability (20130626) - Mac OS X
  • 19418 - Google Chrome Clickjacking Vulnerability (20130626) - ThinApp

Links:


Status:
2011-8-20 - Adobe releases Security Advisory
2013-6-13 - Egor Homakov releases proof of concept

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