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[email protected]CVE-2021-21706

HistoryOct 04, 2021 - 4:15 a.m.

CVE-2021-21706

2021-10-0404:15:08

CWE-24

CWE-22

[email protected]

web.nvd.nist.gov

132

php

ziparchive

cve-2021-21706

security

directory traversal

windows environment

nvd

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

6.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

40.1%

JSON

In PHP versions 7.3.x below 7.3.31, 7.4.x below 7.4.24 and 8.0.x below 8.0.11, in Microsoft Windows environment, ZipArchive::extractTo may be tricked into writing a file outside target directory when extracting a ZIP file, thus potentially causing files to be created or overwritten, subject to OS permissions.

Affected configurations

NVD

Node

microsoftwindowsMatch-

AND

phpphpRange7.3.0–7.3.31

phpphpRange7.4.0–7.4.24

phpphpRange8.0.0–8.0.11

CPENameOperatorVersion
php:phpphplt7.3.31
php:phpphplt7.4.24
php:phpphplt8.0.11

CPE	Name	Operator	Version
php:php	php	lt	7.3.31
php:php	php	lt	7.4.24
php:php	php	lt	8.0.11

CNA Affected

[
  {
    "platforms": [
      "Windows"
    ],
    "product": "PHP",
    "vendor": "PHP Group",
    "versions": [
      {
        "lessThan": "7.3.31",
        "status": "affected",
        "version": "7.3.x",
        "versionType": "custom"
      },
      {
        "lessThan": "7.4.24",
        "status": "affected",
        "version": "7.4.x",
        "versionType": "custom"
      },
      {
        "lessThan": "8.0.11",
        "status": "affected",
        "version": "8.0.X",
        "versionType": "custom"
      }
    ]
  }
]