CVE Vulnerability

CVE-2021-21705

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://bugs.php.net/bug.php?id=81122 Exploit Issue Tracking
https://security.netapp.com/advisory/ntap-20211029-0006/ Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch Vendor Advisory
https://security.gentoo.org/glsa/202209-20 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
cpe:2.3:a:oracle:sd-wan_aware:8.2:*:*:*:*:*:*:*
Information

Published : 2021-10-04 04:15

Updated : 2022-10-29 02:50

NVD link : CVE-2021-21705

Mitre link : CVE-2021-21705

Products Affected
No products.
CWE
CWE-20