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cve[email protected]CVE-2021-37938
HistoryNov 18, 2021 - 4:15 p.m.

CVE-2021-37938

2021-11-1816:15:08
CWE-269
CWE-22
web.nvd.nist.gov
20
cve-2021-37938
kibana
windows
traversal
.pbf files
vulnerability
nvd

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

4.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

27.1%

It was discovered that on Windows operating systems specifically, Kibana was not validating a user supplied path, which would load .pbf files. Because of this, a malicious user could arbitrarily traverse the Kibana host to load internal files ending in the .pbf extension. Thanks to Dominic Couture for finding this vulnerability.

Affected configurations

NVD
Node
elastickibanaRange7.9.07.15.2
CPENameOperatorVersion
elastic:kibanaelastic kibanalt7.15.2

CNA Affected

[
  {
    "product": "Kibana",
    "vendor": "Elastic",
    "versions": [
      {
        "status": "affected",
        "version": "All versions from 7.9.0 through 7.15.1"
      }
    ]
  }
]

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

4.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

27.1%

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