CVE-2024-5458 Filter bypass in filter_var (FILTER_VALIDATE_URL)

2024-06-0918:26:28

php

www.cve.org

php

filter bypass

url validation

5.3 Medium

CVSS3

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

0.001 Low

EPSS

Percentile

20.5%

JSON

In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, due to a code logic error, filtering functions such as filter_var when validating URLs (FILTER_VALIDATE_URL) for certain types of URLs the function will result in invalid user information (username + password part of URLs) being treated as valid user information. This may lead to the downstream code accepting invalid URLs as valid and parsing them incorrectly.

CNA Affected

[
  {
    "defaultStatus": "affected",
    "modules": [
      "filter"
    ],
    "product": "PHP",
    "programFiles": [
      "ext/filter/logical_filters.c"
    ],
    "repo": "https://github.com/php/php-src",
    "vendor": "PHP Group",
    "versions": [
      {
        "lessThan": "8.1.29",
        "status": "affected",
        "version": "8.1.*",
        "versionType": "semver"
      },
      {
        "lessThan": "8.2.20",
        "status": "affected",
        "version": "8.2.*",
        "versionType": "semver"
      },
      {
        "lessThan": "8.3.8",
        "status": "affected",
        "version": "8.3.*",
        "versionType": "semver"
      }
    ]
  }
]