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GLSA-201910-01 : PHP: Arbitrary code execution

critical Nessus Plugin ID 130329

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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201910-01 (PHP: Arbitrary code execution)

 A underflow in env_path_info in PHP-FPM under certain configurations can be exploited to gain remote code execution.
 Impact :

 A remote attacker, by sending special crafted HTTP requests, could possibly execute arbitrary code with the privileges of the process, or cause a Denial of Service condition.
 Workaround :

 If patching is not feasible, the suggested workaround is to include checks to verify whether or not a file exists before passing to PHP.

Solution

All PHP 5.6 users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=dev-lang/php-5.6.40-r7' All PHP 7.1 users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=dev-lang/php-7.1.33' All PHP 7.2 users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=dev-lang/php-7.2.24' All PHP 7.3 users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=dev-lang/php-7.3.11'

See Also

https://security.gentoo.org/glsa/201910-01

Plugin Details

Severity: Critical

ID: 130329

File Name: gentoo_GLSA-201910-01.nasl

Version: 1.13

Type: local

Published: 10/28/2019

Updated: 12/6/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

CVSS Score Source: CVE-2019-11043

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:php, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/25/2019

Vulnerability Publication Date: 10/28/2019

CISA Known Exploited Vulnerability Due Dates: 4/15/2022

Exploitable With

Metasploit (PHP-FPM Underflow RCE)

Reference Information

CVE: CVE-2019-11043

GLSA: 201910-01

IAVA: 2019-A-0399-S