CVE-2019-1646 Explained : Impact and Mitigation
Learn about CVE-2019-1646, a high-severity vulnerability in Cisco SD-WAN Solution's CLI allowing attackers to escalate privileges. Find mitigation steps and long-term security practices here.
Cisco SD-WAN Solution has a privilege escalation vulnerability in its internal CLI that could allow attackers to increase their privileges and modify device configurations.
Understanding CVE-2019-1646
This CVE involves a flaw in the Cisco SD-WAN Solution's CLI that could be exploited by attackers to gain elevated privileges.
What is CVE-2019-1646?
The vulnerability in the internal CLI of Cisco SD-WAN Solution allows logged-in attackers to send specially crafted commands to escalate their privileges and potentially compromise the device.
The Impact of CVE-2019-1646
- CVSS Base Score: 7.8 (High Severity)
- Attack Vector: Local
- Attack Complexity: Low
- Privileges Required: Low
- Confidentiality, Integrity, and Availability Impact: High
- Attackers could establish interactive sessions with elevated privileges, leading to further compromise or data access.
Technical Details of CVE-2019-1646
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The flaw arises from inadequate user input sanitization in specific CLI commands, enabling attackers to manipulate device configurations.
Affected Systems and Versions
- Affected Product: Cisco SD-WAN Solution
- Affected Vendor: Cisco
- Affected Version: Not Applicable
Exploitation Mechanism
Attackers exploit the vulnerability by sending specially crafted commands to the susceptible device's CLI, granting them elevated privileges.
Mitigation and Prevention
Protecting systems from CVE-2019-1646 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-recommended patches or updates promptly.
- Monitor network traffic for any suspicious activities.
- Restrict CLI access to authorized personnel only.
Long-Term Security Practices
- Regularly update and patch all software and firmware.
- Conduct security training for staff to recognize and report potential threats.
- Implement network segmentation to limit the impact of potential breaches.
Patching and Updates
- Stay informed about security advisories from Cisco and apply patches as soon as they are available.