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[email protected]CVE-2021-26608

HistorySep 09, 2021 - 1:15 p.m.

CVE-2021-26608

2021-09-0913:15:08

CWE-345

CWE-353

[email protected]

web.nvd.nist.gov

cve

2021

26608

arbitrary file download

execution vulnerability

hshell.dll

handysoft co.

ltd

groupware

activex

integrity check

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.2 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

69.1%

JSON

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.

Affected configurations

NVD

Node

handysofthshellMatch1.7.4.5

handysofthshellMatch2.0.3.5

handysofthshellMatch4.0.1.6

AND

microsoftwindowsMatch-

CPENameOperatorVersion
handysoft:hshellhandysoft hshelleq1.7.4.5
handysoft:hshellhandysoft hshelleq2.0.3.5
handysoft:hshellhandysoft hshelleq4.0.1.6

CPE	Name	Operator	Version
handysoft:hshell	handysoft hshell	eq	1.7.4.5
handysoft:hshell	handysoft hshell	eq	2.0.3.5
handysoft:hshell	handysoft hshell	eq	4.0.1.6

CNA Affected

[
  {
    "platforms": [
      "Windows"
    ],
    "product": "HShell.dll",
    "vendor": "handysoft",
    "versions": [
      {
        "status": "affected",
        "version": "1.7.4.5"
      },
      {
        "status": "affected",
        "version": "2.0.3.5"
      },
      {
        "status": "affected",
        "version": "4.0.1.6"
      }
    ]
  }
]

References

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

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.2 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

69.1%

JSON

Related for CVE-2021-26608

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