CVE-2020-8290 - 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

Back Back to CVE browser

HIGH

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 Dec 27, 2020

7.8

HIGH

CVSS 3.1

EPSS 0.59%

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.

Affected products

Vendor n/a Product Backblaze Default
n/a
- Version
  Prior to 7.0.0.439
  Status
  affected
  Constraints
  -

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

n/a

Version	Status	Constraints
Prior to 7.0.0.439	affected	-

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-269

Improper Privilege Management

References (4)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-29158
Advisory
https://github.com/geffner/CVE-2020-8290/blob/master/README.md
x_refsource_MISCExploitThird Party Advisory
https://hackerone.com/reports/818857
x_refsource_MISCPermissions Required
https://youtu.be/OpC6neWd2aM
x_refsource_MISCExploitThird Party Advisory

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-29158		Advisory
https://github.com/geffner/CVE-2020-8290/blob/master/README.md		x_refsource_MISCExploitThird Party Advisory
https://hackerone.com/reports/818857		x_refsource_MISCPermissions Required
https://youtu.be/OpC6neWd2aM		x_refsource_MISCExploitThird Party Advisory