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[email protected]CVE-2021-42377

HistoryNov 15, 2021 - 9:15 p.m.

CVE-2021-42377

2021-11-1521:15:07

CWE-590

CWE-763

[email protected]

web.nvd.nist.gov

115

cve-2021-42377

denial of service

code execution

busybox

hush

shell command

remote code execution

nvd

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.5 High

AI Score

Confidence

High

0.017 Low

EPSS

Percentile

87.8%

JSON

An attacker-controlled pointer free in Busybox’s hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code execution under rare conditions of filtered command input.

Affected configurations

NVD

Node

busyboxbusyboxMatch1.33.0

busyboxbusyboxMatch1.33.1

Node

fedoraprojectfedoraMatch33

fedoraprojectfedoraMatch34

Node

netappcloud_backupMatch-

netapphci_management_nodeMatch-

netappsolidfireMatch-

Node

netapph300s_firmwareMatch-

AND

netapph300sMatch-

Node

netapph500s_firmwareMatch-

AND

netapph500sMatch-

Node

netapph700s_firmwareMatch-

AND

netapph700sMatch-

Node

netapph300e_firmwareMatch-

AND

netapph300eMatch-

Node

netapph500e_firmwareMatch-

AND

netapph500eMatch-

Node

netapph700e_firmwareMatch-

AND

netapph700eMatch-

Node

netapph410s_firmwareMatch-

AND

netapph410sMatch-

CPENameOperatorVersion
busybox:busyboxbusyboxeq1.33.0
busybox:busyboxbusyboxeq1.33.1

CPE	Name	Operator	Version
busybox:busybox	busybox	eq	1.33.0
busybox:busybox	busybox	eq	1.33.1

CNA Affected

[
  {
    "vendor": "busybox",
    "product": "busybox",
    "versions": [
      {
        "version": "unspecified",
        "lessThan": "1.34.0",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]