CVE-2021-28099 — MEDIUM (4.4)

Vulnerability 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 Score

4.4

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Netflix	Hollow	-

Related Weaknesses (CWE)

CWE-330

References

https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2021-0Third Party Advisory
https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2021-0Third Party Advisory

FAQ

What is CVE-2021-28099?

CVE-2021-28099 is a vulnerability with a CVSS score of 4.4 (MEDIUM). 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...

How severe is CVE-2021-28099?

CVE-2021-28099 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-28099?

Check the references section above for vendor advisories and patch information. Affected products include: Netflix Hollow.