Zero-day vulnerability in Samsung SDS Acube ActiveX Control

Improper input validation

The South Korean CERT has reported in the wild exploitation of a remote code execution vulnerability in a popular ActiveX component. The group behind this attack is called Andariel Group. the group is tied to activity of a known North Korean adversary Lazarus Group.

Vulnerability details

Advisory: SB2018053105 - Remote code execution in Samsung SDS Acube ActiveX Control

Vulnerable component: Samsung SDS Acube ActiveX Control

CVE-ID:

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-20 - Improper input validation

Description:

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation within the AcubeFileCtrl.ocx ActiveX component. A remote attacker can trick the victim into visiting a specially crafted web page and execute arbitrary code on the target system.

Note: this vulnerability is being actively exploited in the wild.


External links:


About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.