PT-2022-21893 · Hancom · Hancom Office 2020

Dimitrios Tatsis + 2 · Published 2022-10-07 · Updated 2022-10-11 · CVE-2022-33896

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Hancom Office 2020 version 11.0.0.5357

Description A buffer underflow issue exists in the way Hword of Hancom Office 2020 parses XML-based office files. This can be triggered by a specially-crafted malformed file, causing memory corruption by using memory before the buffer start, which can lead to code execution. A victim would need to access a malicious file to trigger this issue.

Recommendations For Hancom Office 2020 version 11.0.0.5357, at the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Weakness Enumeration

CWE-124

Related Identifiers

CVE-2022-33896

Affected Products

Hancom Office 2020

References · 4

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2022-1574 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-33896 · Security Note
• https://osv.dev/vulnerability/CVE-2022-33896 · Vendor Advisory
• https://t.me/cibsecurity/50971 · Telegram Post