CVE-2021-26608
handysoft groupware arbitrary file download and execution vulnerability
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Se ha encontrado una vulnerabilidad de descarga y ejecución arbitraria de archivos en el módulo HShell.dll del groupware ActiveX de handysoft Co., Ltd. Este problema es debido a una falta de soporte para la comprobación de la integridad de la URL de descarga o del hash del archivo descargado
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-02-03 CVE Reserved
- 2021-09-09 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-15 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-345: Insufficient Verification of Data Authenticity
- CWE-353: Missing Support for Integrity Check
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36239 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Handysoft Search vendor "Handysoft" | Hshell Search vendor "Handysoft" for product "Hshell" | 1.7.4.5 Search vendor "Handysoft" for product "Hshell" and version "1.7.4.5" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Search vendor "Microsoft" for product "Windows" | - | - |
Safe
|
| Handysoft Search vendor "Handysoft" | Hshell Search vendor "Handysoft" for product "Hshell" | 2.0.3.5 Search vendor "Handysoft" for product "Hshell" and version "2.0.3.5" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Search vendor "Microsoft" for product "Windows" | - | - |
Safe
|
| Handysoft Search vendor "Handysoft" | Hshell Search vendor "Handysoft" for product "Hshell" | 4.0.1.6 Search vendor "Handysoft" for product "Hshell" and version "4.0.1.6" | - |
Affected
| in | Microsoft Search vendor "Microsoft" | Windows Search vendor "Microsoft" for product "Windows" | - | - |
Safe
|