CVE-2017-3971 Explained : Impact and Mitigation
Learn about CVE-2017-3971, a high-severity cryptanalysis vulnerability in McAfee Network Security Management (NSM) versions before 8.2.7.42.2, allowing unauthorized access to confidential data. Find mitigation steps and preventive measures.
McAfee Network Security Management (NSM) prior to version 8.2.7.42.2 is vulnerable to a cryptanalysis flaw related to RC4 encryption cyphers, allowing unauthorized access to sensitive data.
Understanding CVE-2017-3971
This CVE involves a security vulnerability in McAfee Network Security Management (NSM) that could lead to unauthorized access to confidential information.
What is CVE-2017-3971?
CVE-2017-3971 is a cryptanalysis vulnerability in the web interface of McAfee Network Security Management (NSM) versions before 8.2.7.42.2. Attackers can exploit this flaw to gain access to sensitive data due to the insecure implementation of RC4 encryption cyphers.
The Impact of CVE-2017-3971
The vulnerability poses a high severity risk with a CVSS base score of 8.2, potentially allowing attackers to compromise the confidentiality of information.
Technical Details of CVE-2017-3971
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability stems from the insecure use of RC4 encryption cyphers in the web interface of McAfee Network Security Management (NSM) versions prior to 8.2.7.42.2.
Affected Systems and Versions
- Product: Network Security Management (NSM)
- Vendor: McAfee
- Versions Affected: < 8.2.7.42.2
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: Required
- Scope: Changed
- Confidentiality Impact: High
- Integrity Impact: Low
- Availability Impact: Low
Mitigation and Prevention
Protecting systems from CVE-2017-3971 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update McAfee Network Security Management to version 8.2.7.42.2 or later.
- Monitor network traffic for any suspicious activities.
- Implement strong access controls and authentication mechanisms.
Long-Term Security Practices
- Regularly update and patch all software and firmware.
- Conduct security assessments and penetration testing periodically.
- Educate users and IT staff on cybersecurity best practices.
Patching and Updates
- Apply security patches provided by McAfee promptly.