CVE-2021-42338

4MOSAn GCB Doctor - Improper Authorization

View on CVE.org

Published Nov 19, 2021 CVSS 3.1 · 9.8 Critical EPSS 5.8% KEV · Not listed

Description

4MOSAn GCB Doctor’s login page has improper validation of Cookie, which allows an unauthenticated remote attacker to bypass authentication by code injection in cookie, and arbitrarily manipulate the system or interrupt services by upload and execution of arbitrary files.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

4MOSAn

GCB Doctor

affected

Version	Status	Constraints
`unspecified`	affected	≤ 20210708(v2.0)

Configuration 1 [-]

cpe:2.3:a:4mosan:gcb_doctor:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

Update 4MOSAn GCB Doctor version to 20210811 (v2.0)

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-29312	4MOSAn GCB Doctor’s login page has improper validation of Cookie, which allows an unauthenticated remote attacker to bypass authentication by code injection in cookie, and arbitrarily manipulate the system or interrupt services by upload and execution of arbitrary files.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

Exploit prediction score: 5.8% (5.811% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://www.twcert.org.tw/tw/cp-132-5313-45bde-1.html

History

No history.

Subscriptions

4mosan Gcb Doctor

Weaknesses

Sources

CVE record Updated: Sep 17, 2024, 12:21 AM

Status: PUBLISHED
Assigner: twcert
Published: Nov 19, 2021, 9:05 AM
Updated: Sep 17, 2024, 12:21 AM
Reserved: Oct 12, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:09 AM

Status: Modified
Published: Nov 19, 2021, 9:15 AM
Modified: Jun 17, 2026, 4:09 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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