SID 1:45616

Rule Category

FILE-FLASH -- Snort has detected suspicious traffic via the Adobe Flash Player. Flash is a common target of code execution, overflow, DoS, and memory corruption attacks in particular, via swifs, action scripts, etc. Many networks block Flash altogether; the application will be deprecated in 2020.

Alert Message

FILE-FLASH Adobe Flash Player movieclip duplicateMovieClip use-after-free attempt

Rule Explanation

This event is generated when, an attempt to exploit Adobe Flash Player using memory already released, is detected. Impact: Attempted User Privilege Gain Details: This crafted SWF file exploits a remote code execution vulnerability in Adobe Flash Player. The vulnerability is due to a Use-After-Free in the MovieClip.duplicateMovieClip function. An attacker can entice a target to open a specially crafted flash file to trigger the vulnerability. Successful exploitation may result in execution of arbitrary code or abnormal termination of the flash process. Ease of Attack: High

What To Look For

No information provided

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group