Amazon Linux AMI : php73 (ALAS-2020-1351)

critical Nessus Plugin ID 134573

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Synopsis

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

Description

The version of php73 installed on the remote host is prior to 7.3.15-1.24. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1351 advisory.

In PHP versions 7.3.x below 7.3.15 and 7.4.x below 7.4.3, while extracting PHAR files on Windows using phar extension, certain content inside PHAR file could lead to one-byte read past the allocated buffer.
This could potentially lead to information disclosure or crash. (CVE-2020-7061)

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash. (CVE-2020-7062)

In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when creating PHAR archive using PharData::buildFromIterator() function, the files are added with default permissions (0666, or all access) even if the original files on the filesystem were with more restrictive permissions. This may result in files having more lax permissions than intended when such archive is extracted. (CVE-2020-7063)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'yum update php73' to update your system.

Plugin Details

Severity: Critical

ID: 134573

File Name: ala_ALAS-2020-1351.nasl

Version: 1.4

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 3/16/2020

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2020-7061

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:php73-devel, p-cpe:/a:amazon:linux:php73-cli, p-cpe:/a:amazon:linux:php73-gd, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:php73-mysqlnd, p-cpe:/a:amazon:linux:php73-fpm, p-cpe:/a:amazon:linux:php73-pdo-dblib, p-cpe:/a:amazon:linux:php73-process, p-cpe:/a:amazon:linux:php73-imap, p-cpe:/a:amazon:linux:php73-embedded, p-cpe:/a:amazon:linux:php73-enchant, p-cpe:/a:amazon:linux:php73-debuginfo, p-cpe:/a:amazon:linux:php73-pspell, p-cpe:/a:amazon:linux:php73-json, p-cpe:/a:amazon:linux:php73-odbc, p-cpe:/a:amazon:linux:php73-opcache, p-cpe:/a:amazon:linux:php73-dba, p-cpe:/a:amazon:linux:php73-tidy, p-cpe:/a:amazon:linux:php73-snmp, p-cpe:/a:amazon:linux:php73-common, p-cpe:/a:amazon:linux:php73-recode, p-cpe:/a:amazon:linux:php73-xml, p-cpe:/a:amazon:linux:php73, p-cpe:/a:amazon:linux:php73-soap, p-cpe:/a:amazon:linux:php73-bcmath, p-cpe:/a:amazon:linux:php73-mbstring, p-cpe:/a:amazon:linux:php73-ldap, p-cpe:/a:amazon:linux:php73-dbg, p-cpe:/a:amazon:linux:php73-pgsql, p-cpe:/a:amazon:linux:php73-pdo, p-cpe:/a:amazon:linux:php73-intl, p-cpe:/a:amazon:linux:php73-xmlrpc, p-cpe:/a:amazon:linux:php73-gmp

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: 3/13/2020

Vulnerability Publication Date: 2/27/2020

Reference Information

CVE: CVE-2020-7061, CVE-2020-7062, CVE-2020-7063

ALAS: 2020-1351

Detections

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