Huawei HarmonyOS Multi-Screen Collaboration path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Huawei HarmonyOS. It has been rated as critical. Impacted is an unknown function of the component Multi-Screen Collaboration Module. The manipulation leads to path traversal. This vulnerability is traded as CVE-2021-46856. There is no exploit available.

Detailsinfo

A vulnerability was found in Huawei HarmonyOS (version unknown) and classified as problematic. This issue affects an unknown function of the component Multi-Screen Collaboration Module. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. The summary by CVE is:

The multi-screen collaboration module has a path traversal vulnerability. Successful exploitation of this vulnerability may affect data confidentiality.

The weakness was shared 12/21/2022. It is possible to read the advisory at device.harmonyos.com. The identification of this vulnerability is CVE-2021-46856 since 11/29/2022. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/21/2023). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/29/2022 🔍
12/21/2022 +22 days 🔍
12/21/2022 +0 days 🔍
01/21/2023 +31 days 🔍

Sourcesinfo

Vendor: huawei.com

Advisory: device.harmonyos.com
Status: Confirmed

CVE: CVE-2021-46856 (🔍)
GCVE (CVE): GCVE-0-2021-46856
GCVE (VulDB): GCVE-100-216419

Entryinfo

Created: 12/21/2022 09:00
Updated: 01/21/2023 13:06
Changes: 12/21/2022 09:00 (37), 01/21/2023 13:06 (11)
Complete: 🔍
Cache ID: 216::103

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