PHP 8.1-8.3 FILTER_VALIDATE_URL allows invalid userinfo
CVE-2024-5458 Published on June 9, 2024

Filter bypass in filter_var (FILTER_VALIDATE_URL)
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.

NVD

Vulnerability Analysis

CVE-2024-5458 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. An automatable proof of concept (POC) exploit exists. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
LOW
Availability Impact:
NONE

Weakness Type

Insufficient Verification of Data Authenticity

The software does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.


Products Associated with CVE-2024-5458

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2024-5458 are published in these products:

PHP
 
Fedora Project Fedora
 
Oracle
 

Affected Versions

PHP Group PHP: php: fedoraproject fedora:

Exploit Probability

EPSS
4.31%
Percentile
88.66%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.