Western Digital My Cloud prior OS5 Firmware Upgrade signature verification

CVSS Meta Temp Score
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Western Digital My Cloud. It has been declared as critical. The affected element is an unknown function of the component Firmware Upgrade Handler. Such manipulation leads to signature verification. This vulnerability is documented as CVE-2021-36226. Additionally, an exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Western Digital My Cloud (Cloud Software) and classified as critical. Affected by this issue is some unknown processing of the component Firmware Upgrade Handler. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Western Digital My Cloud devices before OS5 do not use cryptographically signed Firmware upgrade files.

The weakness was released 02/06/2023. The advisory is available at github.com. This vulnerability is handled as CVE-2021-36226 since 07/08/2021. Technical details are unknown but a public exploit is available.

The exploit is available at github.com. It is declared as proof-of-concept.

Upgrading to version OS5 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Vendor

Name

License

CPE 2.3info

CPE 2.2info

Video

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.9
VulDB Meta Temp Score: 8.5

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
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-2021-36226 (🔍)
GCVE (CVE): GCVE-0-2021-36226
GCVE (VulDB): GCVE-100-220226
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/06/2023 15:46
Updated: 03/05/2023 10:40
Changes: 02/06/2023 15:46 (43), 03/05/2023 10:40 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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