McAfee Web Gateway up to 7.8.2.12 Scanning Proxy input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$0-$5k	0.04

A vulnerability, which was classified as problematic, was found in McAfee Web Gateway up to 7.8.2.12 (Firewall Software). Affected is an unknown part of the component Scanning Proxy. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-20. This is going to have an impact on availability. CVE summarizes:

McAfee Web Gateway (MWG) earlier than 7.8.2.13 is vulnerable to a remote attacker exploiting CVE-2019-9517, potentially leading to a denial of service. This affects the scanning proxies.

The weakness was published 09/11/2019 (Website). The advisory is available at kc.mcafee.com. This vulnerability is traded as CVE-2019-3644 since 01/03/2019. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/21/2020).

Upgrading to version 7.8.2.13 eliminates this vulnerability.

Similar entries are available at 139968, 139969, 139970 and 139971.

Productinfoedit

Type

Firewall Software

Vendor

McAfee

Name

Web Gateway

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2infoedit

AV	AC	Au	C	I	A
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🔍	🔍	🔍	🔍	🔍	🔍
🔍	🔍	🔍	🔍	🔍	🔍

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Web Gateway 7.8.2.13

Timelineinfoedit

01/03/2019 🔍
09/11/2019 +251 days 🔍
09/12/2019 +1 days 🔍
08/21/2020 +344 days 🔍

Sourcesinfoedit

Vendor: https://www.mcafee.com/

Advisory: kc.mcafee.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-3644 (🔍)
See also: 🔍

Entryinfoedit

Created: 09/12/2019 08:40 AM
Updated: 08/21/2020 11:02 AM
Changes: (1) advisory_confirm_url
Complete: 🔍