CVE-2020-8290

Public Exploit

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
Third-Party Advisory github.com Third-Party Advisory youtu.be
Affected: n/a Backblaze
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/818857 permissions required
https://youtu.be/OpC6neWd2aM third party advisory exploit
https://github.com/geffner/CVE-2020-8290/blob/master/README.md third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-8290?
CVE-2020-8290 has been scored as a high severity vulnerability.
How to fix CVE-2020-8290?
To fix CVE-2020-8290, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-8290 being actively exploited in the wild?
It is possible that CVE-2020-8290 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-8290?
CVE-2020-8290 affects n/a Backblaze.
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