CVE-2020-8290 - Vulnerability Details - OpenCVE

Description

Backblaze for Windows and Backblaze for macOS before 7.0.0.439 suffer from improper privilege management in `bztransmit` helper due to lack of permission handling and validation before creation of client update directories allowing for local escalation of privilege via rogue client update binary.

Published: 2020-12-27

Score: 7.8 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

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

Vendor Product Default status Versions

n/a

Backblaze

affected

Version	Status	Constraints
`Prior to 7.0.0.439`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:backblaze:backblaze::::::macos::*
	cpe:2.3:a:backblaze:backblaze::::::windows::*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2020-29158	Backblaze for Windows and Backblaze for macOS before 7.0.0.439 suffer from improper privilege management in `bztransmit` helper due to lack of permission handling and validation before creation of client update directories allowing for local escalation of privilege via rogue client update binary.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00116.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/geffner/CVE-2020-8290/blob/master/README.md
https://hackerone.com/reports/818857
https://youtu.be/OpC6neWd2aM

History

No history.

Subscriptions

Backblaze Backblaze

MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2020-12-27T01:22:39.000Z

Updated: 2024-08-04T09:56:28.299Z

Reserved: 2020-01-28T00:00:00.000Z

Link: CVE-2020-8290

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-12-27T02:15:14.573

Modified: 2024-11-21T05:38:40.217

Link: CVE-2020-8290

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-269

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