Joomla! User-Agent Object Injection RCE

High Nessus Plugin ID 88489

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.

See Also

http://www.nessus.org/u?bec8944e

Plugin Details

Severity: High

ID: 88489

File Name: joomla_object_injection.nasl

Version: $Revision: 1.8 $

Type: remote

Family: CGI abuses

Published: 2016/01/29

Modified: 2017/05/19

Dependencies: 21142

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.5

Temporal Score: 6.2

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

CVSSv3

Base Score: 9.8

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

Vulnerability Information

CPE: cpe:/a:joomla:joomla\!

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2015/12/14

Vulnerability Publication Date: 2015/12/12

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Joomla HTTP Header Unauthenticated Remote Code Execution)

Reference Information

CVE: CVE-2015-8562

BID: 79195

OSVDB: 131679

EDB-ID: 38977, 39033

CWE: 20