| Severity | Critical |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE ID | CVE-2015-6585 |
| CWE ID | CWE-843 |
| Exploitation vector | Network |
| Public exploit | This vulnerability is being exploited in the wild. |
| Vulnerable software Subscribe |
Hancom Office Client/Desktop applications / Office applications |
| Vendor | Hancom, Inc. |
This security advisory describes one critical risk vulnerability.
Severity: Critical
CVSSv3: 8.9 [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] [PCI]
CVE-ID: CVE-2015-6585
CWE-ID:
CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to type confusion error. A remote attacker can create a specially crafted HWPX file containing a set of directories and XML files, trick the victim into opening it, cause memory corruption and execute arbitrary code with privileges of the current user.
Successful exploitation of this vulnerability may result in arbitrary code execution on the vulnerable system.
Note: this vulnerability is being actively exploited.
MitigationInstall update from vendor's website.
Hancom Office: 2014 VP
CPE External linkshttps://www.boho.or.kr/data/secNoticeView.do?bulletin_writing_sequence=23907
https://www.fireeye.com/content/dam/fireeye-www/global/en/blog/threat-research/FireEye_HWP_ZeroDay.p...
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website or open an attachment in an e-mail message.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.