VDB-115799 · CVE-2017-3971 · Qualys 370931

McAfee Network Security Management up to 8.2.7 RC4 Encryption cryptographic issue

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.
6.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in McAfee Network Security Management up to 8.2.7. It has been classified as critical. This affects an unknown part of the component RC4 Encryption. The manipulation leads to cryptographic issue. This vulnerability is traded as CVE-2017-3971. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in McAfee Network Security Management up to 8.2.7 and classified as critical. This issue affects an unknown code block of the component RC4 Encryption. The manipulation with an unknown input leads to a cryptographic issue vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Cryptanalysis vulnerability in the web interface in McAfee Network Security Management (NSM) before 8.2.7.42.2 allows attackers to view confidential information via insecure use of RC4 encryption cyphers.

The bug was discovered 04/06/2017. The weakness was shared 04/04/2018 (Website). It is possible to read the advisory at kc.mcafee.com. The identification of this vulnerability is CVE-2017-3971 since 12/26/2016. The exploitation is known to be easy. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 363 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370931 (McAfee Network Security Manager multiple vulnerabilities (SB10192)).

Upgrading to version 8.2.7.42.2 eliminates this vulnerability.

The entries VDB-115640, VDB-115795, VDB-115796 and VDB-115797 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

McAfee

Name

Network Security Management

Version

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 8.2
CNA Vector (McAfee): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Network Security Management 8.2.7.42.2

Timelineinfo

12/26/2016 🔍
04/06/2017 +101 days 🔍
04/04/2018 +363 days 🔍
04/04/2018 +0 days 🔍
04/05/2018 +1 days 🔍
02/26/2023 +1788 days 🔍

Sourcesinfo

Vendor: mcafee.com

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

CVE: CVE-2017-3971 (🔍)
GCVE (CVE): GCVE-0-2017-3971
GCVE (VulDB): GCVE-100-115799
See also: 🔍

Entryinfo

Created: 04/05/2018 10:28
Updated: 02/26/2023 18:44
Changes: 04/05/2018 10:28 (61), 01/22/2020 09:17 (2), 02/08/2021 15:51 (2), 02/26/2023 18:44 (12)
Complete: 🔍
Cache ID: 216::103