Western Digital My Cloud prior OS5 REST API unrestricted upload

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Western Digital My Cloud. It has been classified as critical. Impacted is an unknown function of the component REST API. This manipulation causes unrestricted upload. This vulnerability is registered as CVE-2021-36225. Furthermore, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Western Digital My Cloud (Cloud Software) and classified as critical. Affected by this vulnerability is an unknown code block of the component REST API. The manipulation with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Western Digital My Cloud devices before OS5 allow REST API access by low-privileged accounts, as demonstrated by API commands for firmware uploads and installation.

The weakness was published 02/06/2023. The advisory is shared at github.com. This vulnerability is known as CVE-2021-36225 since 07/08/2021. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

Upgrading to version OS5 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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License

CPE 2.3info

CPE 2.2info

Video

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.0
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: My Cloud OS5

Timelineinfo

07/08/2021 🔍
02/06/2023 +578 days 🔍
02/06/2023 +0 days 🔍
03/05/2023 +27 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2021-36225 (🔍)
GCVE (CVE): GCVE-0-2021-36225
GCVE (VulDB): GCVE-100-220225
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/06/2023 15:45
Updated: 03/05/2023 10:35
Changes: 02/06/2023 15:45 (43), 03/05/2023 10:35 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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