CVE-2021-28099

Description

In Netflix OSS Hollow, since the Files.exists(parent) is run before creating the directories, an attacker can pre-create these directories with wide permissions. Additionally, since an insecure source of randomness is used, the file names to be created can be deterministically calculated.

Category

4.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Third-Party Advisory github.com
Affected: n/a Netflix OSS Hollow
Published at:
Updated at:

References

Link Tags
https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2021-001.md third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-28099?
CVE-2021-28099 has been scored as a medium severity vulnerability.
How to fix CVE-2021-28099?
To fix CVE-2021-28099, 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-2021-28099 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-28099 is being actively exploited. 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-2021-28099?
CVE-2021-28099 affects n/a Netflix OSS Hollow.
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