CVE-2019-1966 Explained : Impact and Mitigation
Learn about CVE-2019-1966, a vulnerability in Cisco UCS Fabric Interconnect Software allowing attackers to gain root privileges. Find mitigation steps and impact details.
A vulnerability in a specific CLI command within the local management (local-mgmt) context for Cisco UCS Fabric Interconnect Software could allow an authenticated, local attacker to gain elevated privileges as the root user on an affected device.
Understanding CVE-2019-1966
This CVE involves a weakness in a particular CLI command in the local management section of the Cisco UCS Fabric Interconnect Software that could enable a local, authenticated attacker to acquire higher privileges as the root user on a targeted device.
What is CVE-2019-1966?
The vulnerability is caused by additional subcommand options that exist for a specific CLI command within the local-mgmt section. To exploit this vulnerability, an attacker would need to authenticate themselves on the affected device, access the local-mgmt section, and execute a specific CLI command while providing user input.
The Impact of CVE-2019-1966
If successful, the attacker would be able to execute arbitrary commands on the affected device with root privileges. It is important to note that the attacker must possess valid user credentials for the device.
Technical Details of CVE-2019-1966
Vulnerability Description
The vulnerability allows an attacker to execute arbitrary commands on the affected device with root privileges by exploiting a specific CLI command within the local management section of the Cisco UCS Fabric Interconnect Software.
Affected Systems and Versions
- Product: Cisco Unified Computing System (Managed)
- Vendor: Cisco
- Versions Affected: Less than 4.0(2a)
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Confidentiality, Integrity, and Availability Impact: High
Mitigation and Prevention
Immediate Steps to Take
- Apply the necessary security patches provided by Cisco.
- Monitor for any unauthorized access or suspicious activities on the affected devices.
Long-Term Security Practices
- Regularly update and patch all software and firmware to prevent vulnerabilities.
- Implement strong authentication mechanisms and access controls to limit unauthorized access.
Patching and Updates
- Stay informed about security advisories and updates from Cisco.