Vulnerability identifier: #VU84704

Vulnerability risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2023-51598

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Hancom Office
Client/Desktop applications / Office applications

Vendor: Hancom, Inc.

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when parsing DOC files. A remote attacker can trick the victim to open a specially crafted DOC file, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Hancom Office: All versions

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External links
http://www.zerodayinitiative.com/advisories/ZDI-23-1855/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.