CVE-2019-1592 : Vulnerability Insights and Analysis
Discover the privilege escalation vulnerability in Cisco Nexus 9000 Series ACI Mode Switch Software (CVE-2019-1592). Learn about the impact, affected systems, and mitigation steps.
A security flaw in Cisco Nexus 9000 Series ACI Mode Switch Software allows a local attacker to gain root privileges, posing a high risk.
Understanding CVE-2019-1592
This CVE involves a privilege escalation vulnerability in Cisco Nexus 9000 Series Fabric Switches ACI Mode.
What is CVE-2019-1592?
The vulnerability allows an authenticated local attacker to elevate privileges to root on the affected device by exploiting inadequate file validation.
The Impact of CVE-2019-1592
- CVSS Base Score: 7.8 (High Severity)
- Attack Vector: Local
- Confidentiality, Integrity, and Availability Impact: High
- Privileges Required: Low
- Scope: Unchanged
- Attack Complexity: Low
- User Interaction: None
- No known public exploits or malicious use reported.
Technical Details of CVE-2019-1592
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The flaw arises from insufficient validation of user-supplied files, enabling the attacker to execute arbitrary commands as the root user.
Affected Systems and Versions
- Product: Cisco NX-OS Software for Nexus 9000 Series Fabric Switches ACI Mode 11.0.1b
- Versions Affected: Less than 14.1(1i)
Exploitation Mechanism
To exploit, the attacker must access the device's CLI and create a manipulated file in a specific directory within the file system.
Mitigation and Prevention
Protect your systems from CVE-2019-1592 with these steps:
Immediate Steps to Take
- Apply vendor patches promptly
- Monitor network for any unusual activity
- Restrict access to CLI to authorized personnel
Long-Term Security Practices
- Regular security training for staff
- Implement least privilege access controls
Patching and Updates
- Cisco may release patches to address this vulnerability