CVE-2019-1650 : What You Need to Know
Learn about CVE-2019-1650, a high-severity vulnerability in Cisco SD-WAN Solution allowing remote attackers to overwrite files on affected devices. Find mitigation steps and patching details here.
Cisco SD-WAN Solution Arbitrary File Overwrite Vulnerability
Understanding CVE-2019-1650
This CVE involves a weakness in the Cisco SD-WAN Solution that allows a remote attacker with authentication to modify files on the underlying operating system of an affected device.
What is CVE-2019-1650?
The vulnerability stems from insufficient validation of the save command in the Command Line Interface (CLI) of the affected software. By altering the save command in the CLI, an attacker can overwrite any files on the device's operating system and elevate privileges to the root user.
The Impact of CVE-2019-1650
- CVSS Score: 8.8 (High Severity)
- Attack Vector: Network
- Confidentiality, Integrity, and Availability Impact: High
- No known public exploits or malicious use reported by Cisco PSIRT.
Technical Details of CVE-2019-1650
The following technical details provide insight into the vulnerability:
Vulnerability Description
The vulnerability allows an authenticated attacker to overwrite arbitrary files on the device's operating system by manipulating the save command in the CLI.
Affected Systems and Versions
- Affected Product: Cisco SD-WAN Solution
- Vendor: Cisco
- Affected Version: Not applicable
Exploitation Mechanism
To exploit this vulnerability, the attacker needs authentication and can modify the save command in the CLI to overwrite files on the device's operating system.
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2019-1650.
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly.
- Monitor network traffic for any suspicious activity.
- Restrict access to the CLI to authorized personnel only.
Long-Term Security Practices
- Regularly update and patch all software and firmware.
- Conduct security training for staff to recognize and respond to potential threats.
Patching and Updates
- Cisco has likely released patches or updates to address this vulnerability. Ensure timely installation of these fixes to secure the affected systems.