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KrcertCVELIST:CVE-2020-7867

HistoryOct 27, 2021 - 12:43 a.m.

CVE-2020-7867 Helpu arbitrary file creation vulnerability

2021-10-2700:43:35

CWE-20

krcert

www.cve.org

8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.8 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

An improper input validation vulnerability in Helpu solution could allow a local attacker to arbitrary file creation and execution without click file transfer menu. It is possible to file in arbitrary directory for user because the viewer program receive the file from agent with privilege of administrator.

CNA Affected

[
  {
    "platforms": [
      "Windows"
    ],
    "product": "HelpuViewer.exe",
    "vendor": "HelpU",
    "versions": [
      {
        "lessThanOrEqual": "2018.5.21.0",
        "status": "affected",
        "version": "2018.5.21.0",
        "versionType": "custom"
      }
    ]
  }
]

References

www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36303

8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.8 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

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