Detections
Analytics
PHP 5.6.x < 5.6.39 Multiple vulnerabilities
high Nessus Plugin ID 119764
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Synopsis
An application installed on the remote host is affected by multiple vulnerabilities.Description
According to its banner, the version of PHP running on the remote web server is 5.6.x prior to 5.6.39. It is, therefore, affected by multiple vulnerabilities:- An arbitrary command injection vulnerability exists in the imap_open function due to improper filters for mailbox names prior to passing them to rsh or ssh commands. An authenticated, remote attacker can exploit this by sending a specially crafted IMAP server name to cause the execution of arbitrary commands on the target system. (CVE-2018-19518)
- A denial of service (DoS) vulnerability exists in ext/imap/php_imap.c. An unauthenticated, remote attacker can exploit this issue, via an empty string in the message argument to the imap_mail function, to cause the application to stop responding. (CVE-2018-19935)
- A heap buffer over-read exists in the phar_parse_pharfile function.
An unauthenticated, remote attacker can exploit this to read allocated or unallocated memory past the actual data when trying to parse a .phar file. (CVE-2018-20783)
Solution
Upgrade to PHP version 5.6.39 or later.See Also
Plugin Details
Severity: High
ID: 119764
File Name: php_5_6_39.nasl
Version: 1.14
Type: remote
Family: CGI abuses
Published: 12/19/2018
Updated: 5/26/2025
Configuration: Enable thorough checks (optional)
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.4
CVSS v2
Risk Factor: High
Base Score: 8.5
Temporal Score: 7
Vector: CVSS2#AV:N/AC:M/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2018-19518
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
CVSS Score Source: CVE-2018-20783
Vulnerability Information
CPE: cpe:/a:php:php
Required KB Items: www/PHP
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 12/6/2018
Vulnerability Publication Date: 11/14/2018
Exploitable With
Metasploit (php imap_open Remote Code Execution)