Detections
Analytics

PHP 7.3.x < 7.3.21 Use After Free Vulnerability

low Web App Scanning Plugin ID 112608

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Synopsis

PHP 7.3.x < 7.3.21 Use After Free Vulnerability

Description

According to its self-reported version number, the version of PHP running on the remote web server is 7.2.x prior to 7.2.33, 7.3.x prior to 7.3.21 or 7.4.x prior to 7.4.9. It is, therefore, affected by a use after free vulnerability in the phar_parse function due to mishandling of the actual_alias variable. An unauthenticated, remote attacker could exploit this issue by dereferencing a freed pointer which could lead to arbitrary code execution.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to PHP version 7.3.21 or later.

See Also

https://www.php.net/ChangeLog-7.php#7.3.21

Plugin Details

Severity: Low

ID: 112608

Type: remote

Published: 10/9/2020

Updated: 3/14/2023

Scan Template: api, basic, full, pci, scan

Risk Information

VPR

Risk Factor: Low

Score: 3.3

CVSS v2

Risk Factor: Low

Base Score: 3.3

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2020-7068

CVSS v3

Risk Factor: Low

Base Score: 3.6

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L

CVSS Score Source: CVE-2020-7068

Vulnerability Information

CPE: cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/9/2020

Vulnerability Publication Date: 9/9/2020

Reference Information

CVE: CVE-2020-7068