CVE-2019-1952 : Vulnerability Insights and Analysis
Learn about CVE-2019-1952, a vulnerability in Cisco Enterprise NFV Infrastructure Software allowing local attackers to overwrite or view files with administrator-level credentials.
Cisco Enterprise NFV Infrastructure Software Path Traversal Vulnerability
Understanding CVE-2019-1952
This CVE involves a security weakness in the command line interface (CLI) of Cisco Enterprise NFV Infrastructure Software (NFVIS), potentially allowing a local attacker with authenticated access to overwrite or view any files with administrator-level credentials.
What is CVE-2019-1952?
The vulnerability stems from inadequate validation of input for CLI command arguments, enabling attackers to exploit directory traversal techniques while running a susceptible command, granting them the ability to modify or view files on the targeted device.
The Impact of CVE-2019-1952
- CVSS Score: 6.7 (Medium Severity)
- Attack Vector: Local
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Privileges Required: High
Technical Details of CVE-2019-1952
This section delves into the specific technical aspects of the vulnerability.
Vulnerability Description
The vulnerability in the CLI of Cisco Enterprise NFV Infrastructure Software allows an authenticated, local attacker to overwrite or read arbitrary files due to improper input validation of CLI command arguments.
Affected Systems and Versions
- Affected Product: Cisco Enterprise NFV Infrastructure Software
- Vendor: Cisco
- Vulnerable Versions: Less than 3.10.1 (Custom Version)
Exploitation Mechanism
Attackers exploit directory traversal techniques when executing a vulnerable command, gaining the ability to overwrite or read arbitrary files on the affected device.
Mitigation and Prevention
Protecting systems from CVE-2019-1952 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Ensure all users have the least privilege necessary for their roles.
- Regularly monitor and review CLI commands and access logs for suspicious activities.
Long-Term Security Practices
- Implement strong password policies and multi-factor authentication.
- Conduct regular security training for users to recognize and report suspicious activities.
Patching and Updates
- Apply the latest security patches and updates provided by Cisco to address the vulnerability.