Multiple vulnerabilities in McAfee Web Gateway

Published: 2018-07-23 | Updated: 2020-08-08

Risk	High
Patch available	NO
Number of vulnerabilities	2
CVE-ID	CVE-2018-6677 CVE-2018-6678
CWE-ID	CWE-22 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	McAfee Web Gateway Server applications / Remote management servers, RDP, SSH
Vendor	McAfee

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Path traversal

EUVDB-ID: #VU36826

Risk: High

CVSSv3.1: 8.3 [AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2018-6677

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the administrative user interface in McAfee Web Gateway (MWG) MWG 7.8.1.x. A remote authenticated attacker can send a specially crafted HTTP request and authenticated administrator users to gain elevated privileges via unspecified vectors.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

McAfee Web Gateway: 7.8.1.0

External links

http://www.securityfocus.com/bid/104893
http://kc.mcafee.com/corporate/index?page=content&id=SB10245

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Input validation error

EUVDB-ID: #VU36827