CVE Vulnerabilities

CVE-2021-26608

Insufficient Verification of Data Authenticity

Published: Sep 09, 2021 | Modified: Aug 02, 2022
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Affected Software

Name Vendor Start Version End Version
Hshell Handysoft 1.7.4.5 (including) 1.7.4.5 (including)
Hshell Handysoft 2.0.3.5 (including) 2.0.3.5 (including)
Hshell Handysoft 4.0.1.6 (including) 4.0.1.6 (including)

References