Detections
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Amazon Linux 2 : php (ALASPHP8.0-2023-001)

medium Nessus Plugin ID 181381

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of php installed on the remote host is prior to 8.0.13-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2PHP8.0-2023-001 advisory.

 - In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended. (CVE-2021-21707)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update php' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALASPHP8.0-2023-001.html

https://alas.aws.amazon.com/cve/html/CVE-2021-21707.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Medium

ID: 181381

File Name: al2_ALASPHP8_0-2023-001.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/13/2023

Updated: 10/18/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2021-21707

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.9

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:php, p-cpe:/a:amazon:linux:php-bcmath, p-cpe:/a:amazon:linux:php-cli, p-cpe:/a:amazon:linux:php-common, p-cpe:/a:amazon:linux:php-dba, p-cpe:/a:amazon:linux:php-dbg, p-cpe:/a:amazon:linux:php-debuginfo, p-cpe:/a:amazon:linux:php-devel, p-cpe:/a:amazon:linux:php-embedded, p-cpe:/a:amazon:linux:php-enchant, p-cpe:/a:amazon:linux:php-fpm, p-cpe:/a:amazon:linux:php-gd, p-cpe:/a:amazon:linux:php-gmp, p-cpe:/a:amazon:linux:php-intl, p-cpe:/a:amazon:linux:php-ldap, p-cpe:/a:amazon:linux:php-mbstring, p-cpe:/a:amazon:linux:php-mysqlnd, p-cpe:/a:amazon:linux:php-odbc, p-cpe:/a:amazon:linux:php-opcache, p-cpe:/a:amazon:linux:php-pdo, p-cpe:/a:amazon:linux:php-pgsql, p-cpe:/a:amazon:linux:php-process, p-cpe:/a:amazon:linux:php-pspell, p-cpe:/a:amazon:linux:php-snmp, p-cpe:/a:amazon:linux:php-soap, p-cpe:/a:amazon:linux:php-sodium, p-cpe:/a:amazon:linux:php-xml, cpe:/o:amazon:linux:2

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/4/2023

Vulnerability Publication Date: 11/29/2021

Reference Information

CVE: CVE-2021-21707

IAVA: 2021-A-0566-S