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PhpCVE-2021-21705

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

CVE-2021-21705

2021-10-0404:15:08

CWE-20

php

web.nvd.nist.gov

678

cve-2021-21705

php

url validation

security implication

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.001

Percentile

39.9%

JSON

In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.

Affected configurations

Nvd

Node

phpphpRange7.3.0–7.3.29

phpphpRange7.4.0–7.4.21

phpphpRange8.0.0–8.0.8

Node

netappclustered_data_ontapMatch-

Node

oraclesd-wan_awareMatch8.2

VendorProductVersionCPE
phpphp*cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
netappclustered_data_ontap-cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
oraclesd-wan_aware8.2cpe:2.3:a:oracle:sd-wan_aware:8.2:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
php	php	*	cpe:2.3:a:php:php::::::::
netapp	clustered_data_ontap	-	cpe:2.3:a:netapp:clustered_data_ontap:-:::::::*
oracle	sd-wan_aware	8.2	cpe:2.3:a:oracle:sd-wan_aware:8.2:::::::*

CNA Affected

[
  {
    "product": "PHP",
    "vendor": "PHP Group",
    "versions": [
      {
        "lessThan": "7.3.29",
        "status": "affected",
        "version": "7.3.x",
        "versionType": "custom"
      },
      {
        "lessThan": "7.4.21",
        "status": "affected",
        "version": "7.4.x",
        "versionType": "custom"
      },
      {
        "lessThan": "8.0.8",
        "status": "affected",
        "version": "8.0.X",
        "versionType": "custom"
      }
    ]
  }
]