Vulnerability identifier: #VU84703

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-2023-50235

CWE-ID: CWE-121

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 execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing PPT files. A remote attacker can trick the victim to open a specially crafted PPT file, trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of 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-23-1857/

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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.