Joomla! User-Agent Object Injection RCE

critical Nessus Plugin ID 88489

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Synopsis

The remote web server contains a PHP application that is affected by a remote code execution vulnerability.

Description

The Joomla! application running on the remote web server is affected by a remote code execution vulnerability due to improper sanitization of the User-Agent header field when saving session values. An unauthenticated, remote attacker can exploit this, via a serialized PHP object, to execute arbitrary PHP code.

Solution

Upgrade to Joomla! version 3.4.6 or later.

Plugin Details

Severity: Critical

ID: 88489

File Name: joomla_object_injection.nasl

Version: 1.11

Type: remote

Family: CGI abuses

Published: 1/29/2016

Updated: 4/11/2022

Configuration: Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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:F/RL:O/RC:X

Vulnerability Information

CPE: cpe:/a:joomla:joomla%5c%21

Required KB Items: www/PHP, installed_sw/Joomla!

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/14/2015

Vulnerability Publication Date: 12/12/2015

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Joomla HTTP Header Unauthenticated Remote Code Execution)

Reference Information

CVE: CVE-2015-8562

BID: 79195

CWE: 20

Detections

Analytics