CVE-2021-42331

ShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-2

Description

The “Study Edit” function of ShinHer StudyOnline System does not perform permission control. After logging in with user’s privilege, remote attackers can access and edit other users’ tutorial schedule by crafting URL parameters.

Remediation

Solution:

  • Update ShinHer StudyOnline System to version v2021.08.20.01

Categories

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Third-Party Advisory org.tw
Affected: ShinHer Information Co., LTD. ShinHer StudyOnline System
Published at:
Updated at:

References

Link Tags
https://www.twcert.org.tw/tw/cp-132-5201-dc534-1.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-42331?
CVE-2021-42331 has been scored as a medium severity vulnerability.
How to fix CVE-2021-42331?
To fix CVE-2021-42331: Update ShinHer StudyOnline System to version v2021.08.20.01
Is CVE-2021-42331 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-42331 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-42331?
CVE-2021-42331 affects ShinHer Information Co., LTD. ShinHer StudyOnline System.
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