VDB-154622 · CVE-2020-7804 · GCVE-0-2020-7804

Handy Groupware 1.7.3.1 on Windows ActiveX Control HShell.dll ShellExec Command os command injection

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Handy Groupware 1.7.3.1 on Windows. It has been declared as critical. The affected element is the function ShellExec in the library HShell.dll of the component ActiveX Control. Such manipulation as part of Command leads to os command injection. This vulnerability is uniquely identified as CVE-2020-7804. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Handy Groupware 1.7.3.1 on Windows (Groupware Software). Affected by this issue is the function ShellExec in the library HShell.dll of the component ActiveX Control. The manipulation as part of a Command leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

ActiveX Control(HShell.dll) in Handy Groupware 1.7.3.1 for Windows 7, 8, and 10 allows an attacker to execute arbitrary command via the ShellExec method.

The weakness was disclosed 04/29/2020 (Website). The advisory is available at handysoft.co.kr. This vulnerability is handled as CVE-2020-7804 since 01/22/2020. The attack may be launched remotely. Additional levels of successful authentication are required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

Groupware Software

Name

Handy Groupware

Version

1.7.3.1

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔍

CNA Base Score: 6.4
CNA Vector (KrCERT/CC): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/22/2020 🔍
04/29/2020 +98 days 🔍
04/30/2020 +1 days 🔍
05/06/2025 +1832 days 🔍

Sourcesinfo

Advisory: handysoft.co.kr
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-7804 (🔍)
GCVE (CVE): GCVE-0-2020-7804
GCVE (VulDB): GCVE-100-154622

Entryinfo

Created: 04/30/2020 09:49
Updated: 05/06/2025 04:35
Changes: 04/30/2020 09:49 (40), 04/30/2020 09:54 (12), 10/14/2020 14:29 (1), 10/14/2020 14:32 (1), 06/04/2024 15:50 (33), 05/06/2025 04:35 (3)
Complete: 🔍
Cache ID: 216::103