CVE Vulnerabilities

CVE-2021-26608

Missing Support for Integrity Check

Published: Sep 09, 2021 | Modified: Nov 21, 2024
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 uses a transmission protocol that does not include a mechanism for verifying the integrity of the data during transmission, such as a checksum.

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)

Potential Mitigations

References