CVE-2021-26608 Information

Description

An arbitrary file download and execution vulnerability was found in the HShell.dll of handysoft Co. Ltd groupware ActiveX module. This issue is due to missing support for integrity check of download URL or downloaded file hash.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36239

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8