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cve[email protected]CVE-2021-28099
HistoryMar 23, 2021 - 9:15 p.m.

CVE-2021-28099

2021-03-2321:15:13
CWE-330
web.nvd.nist.gov
61
netflix
oss
hollow
directory traversal
insecure randomness
cve-2021-28099
nvd

3.6 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:P/A:N

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

4.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.6%

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.

Affected configurations

NVD
Node
netflixhollowMatch-
CPENameOperatorVersion
netflix:hollownetflix holloweq-

CNA Affected

[
  {
    "product": "Netflix OSS Hollow",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  }
]

3.6 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:P/A:N

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

4.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.6%

Related for CVE-2021-28099