CVE-2020-7867

CVSS V2 Medium 4.6 CVSS V3 High 7.8

Description

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.

Overview

CVE ID
CVE-2020-7867

Assigner
vuln@krcert.or.kr

Vulnerability Status
Analyzed

Published Version
2021-10-27T01:15:07

Last Modified Date
2021-10-29T01:20:24

Weakness Enumerations

CWE	URL
CWE-20	http://cwe.mitre.org/data/definitions/20.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:helpu:helpuviewer:2018.5.21.0:::::windows::	1	OR

CVSS Version 2

Version
2.0

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

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
4.6

Severity
MEDIUM

Exploitability Score
3.9

Impact Score
6.4

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7.8

Base Severity
HIGH

Exploitability Score
1.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36303	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-7867
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7867

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:49:10				Added to TrackCVE
2022-12-05 13:18:42	2021-10-27T01:15Z	2021-10-27T01:15:07	CVE Published Date	updated
2022-12-05 13:18:42		2021-10-29T01:20:24	CVE Modified Date	updated
2022-12-05 13:18:42		Analyzed	Vulnerability Status	updated