A security issue was discovered in Kubernetes where a user may be able to create a container with subpath volume mounts to access files & directories outside of the volume, including on the host filesystem.
Published 2021-09-20 17:15:08
Updated 2021-11-30 22:42:34
Source Kubernetes
View at NVD,   CVE.org
Vulnerability category: Input validation

Exploit prediction scoring system (EPSS) score for CVE-2021-25741

0.10%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 40 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-25741

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.5
MEDIUM AV:N/AC:L/Au:S/C:P/I:P/A:N
8.0
4.9
NIST
8.8
HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.8
5.9
Kubernetes
8.1
HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
2.8
5.2
NIST

CWE ids for CVE-2021-25741

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: jordan@liggitt.net (Secondary)
  • The product makes files or directories accessible to unauthorized actors, even though they should not be.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-25741

Products affected by CVE-2021-25741

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