Detections
Analytics
PHP < 7.1.0 Multiple Vulnerabilities
critical Nessus Network Monitor Plugin ID 9843
Synopsis
The remote web server uses a version of PHP that is affected by multiple attack vectors.Description
Versions of PHP prior to 7.1.0 are vulnerable to the following issues :- A flaw exists that is due to 'parse_url' returning the incorrect host. This may allow a remote attacker to have an impact that may include bypassing authentication, or conducting open redirection and server-side request forgery attacks, depending on how the function is implemented.
- An overflow condition exists in the 'dynamicGetbuf()' function in 'gd_io_dp.c'. The issue is triggered as certain input is not properly validated. With a specially crafted string, a remote attacker can cause a stack-based buffer overflow, resulting in a denial of service in a process utilizing the language or potentially allowing the execution of arbitrary code.
- A use-after-free error exists in the 'unserialize()' function related to uses of '__wakeup' which modify properties. This may allow a remote attacker to dereference already freed memory and potentially execute arbitrary code.
- A use-after-free error exists that is triggered when handling unserialized object properties. With a specially crafted request, a remote attacker can dereference already freed memory and potentially execute arbitrary code.
Solution
Upgrade to PHP version 7.1.0 or later.See Also
Plugin Details
Severity: Critical
ID: 9843
Family: Web Servers
Published: 1/2/2017
Updated: 3/6/2019
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 8.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
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:X/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:php:php
Patch Publication Date: 11/10/2016
Vulnerability Publication Date: 10/5/2016