Horizon Alert
Summary of the vulnerability and why it matters
Adobe Flash Player's ExternalInterface ActionScript functionality contains a vulnerability that could allow attackers to execute arbitrary code. This flaw is present in specific versions of Flash Player on Windows and Mac OS X, as well as Linux. Exploitation of this vulnerability has been observed in the wild.
- Adobe Flash Player functionality
- Unspecified flaw in code execution
- Arbitrary code execution and system compromise
Attack Path
How an attacker could exploit the issue
This vulnerability allows for arbitrary code execution through malicious SWF content. Organizations utilizing affected versions of Adobe Flash Player are at risk if their systems can access crafted SWF files. An attacker can leverage this by tricking a user into interacting with specially designed web content.
- Exposure via network accessible systems.
- Attacker provides malicious SWF file.
- User interaction triggers code execution.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability in Adobe Flash Player could allow attackers to execute arbitrary code by tricking users into viewing specially crafted content. While the vulnerability has been known since February 2013, its exploitation in the wild indicates a real-world threat. Organizations still using affected versions of Flash Player face significant risk due to the potential for complete system compromise. Given that Flash Player is end-of-life, discontinuing its use is the recommended action to mitigate this risk.
- Attackers with low skill levels.
- No authentication or privileges required.
- High business risk; end-of-life product.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability in Adobe Flash Player may allow attackers to execute arbitrary code through crafted SWF content. Given that Adobe Flash Player has reached its end-of-life, organizations should discontinue its use to mitigate risk. This action will protect systems and data from potential exploitation.
- Find all Adobe Flash Player installations.
- Uninstall Adobe Flash Player.
- Monitor systems for unusual activity.
