The zero-day vulnerability is being claimed to have been used in early September in possible campaigns against NATO, Ukrainian government
organizations, Western European government organization, Energy Sector firms (specifically in Poland), European telecommunications firms, United States academic organizations.
Files in the SandWorm exploit hilighted by iSIGHT Partners include a malicious executable from a known malware family, namely the BlackEnergy Trojan.
Vulnerable component: Windows
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-20 - Improper Input Validation
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to an error when processing OLE objects. A remote attacker can create a specially crafted OLE object, attach it to a document (e.g. PowerPoint file), trick the victim into opening it and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.
Note: the vulnerability was being actively exploited.
Known APT campaigns:
Sandworm - attacks against NATO, European government organizations, and U.S. academic organizations
The campaign goes back to December 2013.The hackers used Sandworm malware.
- Microsoft Windows - OLE Package Manager SandWorm Exploit [Exploit-DB]