Test ID:	1.3.6.1.4.1.25623.1.0.108692
Category:	Web application abuses
Title:	PHP 'CVE-2019-11043' FPM RCE Vulnerability - Version Check
Summary:	PHP is prone to a remote code execution (RCE) vulnerability in; certain nginx + php-fpm configurations.
Description:	Summary: PHP is prone to a remote code execution (RCE) vulnerability in certain nginx + php-fpm configurations. Vulnerability Insight: The file sapi/fpm/fpm/fpm_main.c contains pointer arithmetic that assumes that env_path_info has a prefix equal to the path to the php script. However, the code does not check this assumption is satisfied. The absence of the check can lead to an invalid pointer in the 'path_info' variable. Such conditions can be achieved in a pretty standard Nginx configuration. The regexp in `fastcgi_split_path_info` directive can be broken using the newline character (in encoded form, %0a). Broken regexp leads to empty PATH_INFO, which triggers the bug. Vulnerability Impact: Successful exploitation would allow an unauthenticated remote attacker to execute arbitrary code on the target machine. Affected Software/OS: PHP versions prior to 7.1.33, 7.2.x prior to 7.2.24 and 7.3.x prior to 7.3.11. Solution: Update to version 7.1.33, 7.2.24, 7.3.11 or later. As an alternative a workaround to update the nginx configuration to mitigate this vulnerability is described at the PHP.net bugtracker linked in the references. CVSS Score: 7.5 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2019-11043 Bugtraq: 20200129 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra (Google Search) https://seclists.org/bugtraq/2020/Jan/44 Debian Security Information: DSA-4552 (Google Search) https://www.debian.org/security/2019/dsa-4552 Debian Security Information: DSA-4553 (Google Search) https://www.debian.org/security/2019/dsa-4553 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3W23TP6X4H7LB645FYZLUPNIRD5W3EPU/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T62LF4ZWVV7OMMIZFO6IFO5QLZKK7YRD/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FSNBUSPKMLUHHOADROKNG5GDWDCRHT5M/ http://seclists.org/fulldisclosure/2020/Jan/40 http://packetstormsecurity.com/files/156642/PHP-FPM-7.x-Remote-Code-Execution.html https://github.com/neex/phuip-fpizdam RedHat Security Advisories: RHSA-2019:3286 https://access.redhat.com/errata/RHSA-2019:3286 RedHat Security Advisories: RHSA-2019:3287 https://access.redhat.com/errata/RHSA-2019:3287 RedHat Security Advisories: RHSA-2019:3299 https://access.redhat.com/errata/RHSA-2019:3299 RedHat Security Advisories: RHSA-2019:3300 https://access.redhat.com/errata/RHSA-2019:3300 RedHat Security Advisories: RHSA-2019:3724 https://access.redhat.com/errata/RHSA-2019:3724 RedHat Security Advisories: RHSA-2019:3735 https://access.redhat.com/errata/RHSA-2019:3735 RedHat Security Advisories: RHSA-2019:3736 https://access.redhat.com/errata/RHSA-2019:3736 RedHat Security Advisories: RHSA-2020:0322 https://access.redhat.com/errata/RHSA-2020:0322 SuSE Security Announcement: openSUSE-SU-2019:2441 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00011.html SuSE Security Announcement: openSUSE-SU-2019:2457 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00014.html https://usn.ubuntu.com/4166-1/ https://usn.ubuntu.com/4166-2/
Copyright	Copyright (C) 2019 Greenbone AG

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