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ZephyrCVE-2020-13599

HistoryMay 25, 2021 - 5:15 p.m.

CVE-2020-13599

2021-05-2517:15:07

CWE-276

zephyr

web.nvd.nist.gov

cve-2020-13599

security problem

zephyr

littlefs

default permissions

cwe-276

nvd

advisory

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.1

Confidence

High

EPSS

Percentile

12.6%

JSON

Security problem with settings and littlefs. Zephyr versions >= 1.14.2, >= 2.3.0 contain Incorrect Default Permissions (CWE-276). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-5qhg-j6wc-4f6q

Affected configurations

Nvd

Node

zephyrprojectzephyrRange≤1.14.2

zephyrprojectzephyrRange2.0.0–2.3.0

VendorProductVersionCPE
zephyrprojectzephyr*cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
zephyrproject	zephyr	*	cpe:2.3:o:zephyrproject:zephyr::::::::

CNA Affected

[
  {
    "product": "zephyr",
    "vendor": "zephyrproject-rtos",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "1.14.2",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "2.3.0",
        "versionType": "custom"
      }
    ]
  }
]

References

github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-5qhg-j6wc-4f6q

www.talosintelligence.com/vulnerability_reports/TALOS-2020-1199

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.1

Confidence

High

EPSS

Percentile

12.6%

JSON

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