Remote code execution in Hangul Word Processor

Published: 2015-09-07 00:00:00 | Updated: 2017-02-02
Severity Critical
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2015-6585
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]
CWE ID CWE-843
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software Hancom Office
Vulnerable software versions Hancom Office 2014 VP
Vendor URL Hancom, Inc.

Security Advisory

1) Type confusion

Description

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.

Remediation

Install update from vendor's website.

External links

https://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...

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