McAfee Email Gateway 7.6.x < 7.6.404 Blocked Email Alert XSS (SB10153)

medium Nessus Plugin ID 90835

Synopsis

The application installed on the remote host is affected by a cross-site scripting vulnerability.

Description

The version of McAfee Email Gateway (MEG) installed on the remote host is 7.6.x prior to 7.6.404. It is, therefore, affected by a cross-site scripting (XSS) vulnerability that is triggered when File Filtering is enabled with the action set to 'ESERVICES:REPLACE'. This is due to a failure to validate input passed via alerts for blocked email attachments; attachments are displayed 'as is' without the XML or HTML content being properly escaped. An unauthenticated, remote attacker can exploit this, via a crafted email attachment, to execute arbitrary script code in a user's browser session.

Solution

Upgrade to McAfee Email Gateway version 7.6.404 as referenced in the vendor advisory.

See Also

https://kc.mcafee.com/corporate/index?page=content&id=SB10153

Plugin Details

Severity: Medium

ID: 90835

File Name: mcafee_email_gateway_SB10153.nasl

Version: 1.7

Type: local

Published: 5/2/2016

Updated: 9/18/2020

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Low

Score: 3

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.7

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Temporal Vector: E:H/RL:OF/RC:C

CVSS Score Source: CVE-2016-3969

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mcafee:email_gateway

Required KB Items: Host/McAfeeSMG/name, Host/McAfeeSMG/version, Host/McAfeeSMG/patches, Settings/ParanoidReport

Exploit Ease: No exploit is required

Patch Publication Date: 3/30/2016

Vulnerability Publication Date: 3/30/2016

Reference Information

CVE: CVE-2016-3969

MCAFEE-SB: SB10153

IAVA: 2016-A-0117-S