The exploit code was revealed after Hacking Team data leak. The exploit was used against Japanese organizations.
The vulnerability was reported by Dhanesh Kizhakkinan of FireEye as well as Peter Pi of TrendMicro.
Exploit kits: Angler EK - 2015-07-11 Neutrino - 2015-07-13 Nuclear Pack - 2015-07-14 RIG - 2015-07-14 Magnitude - 2015-07-15 NullHole - 2015-07-22 Spartan - 2015-09-11
Vulnerable component: Adobe Flash Player
CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C
CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to use-after-free error in the ActionScript 3 opaqueBackground class. A remote attacker can create a specially crafted Web site, trick the victim into visiting it, trigger memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation results in arbitrary code execution on the vulnerable system.
Note: the vulnerability was being actively exploited.
Known APT campaigns:
The campaign mainly targeted Taiwanese organizations and supposedly has Chinese origin.
- Adobe Flash - opaqueBackground Use-After-Free (Metasploit) [Exploit-DB]