CVE-2021-28099 Information

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Reference

https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2021-001.md

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

4.4