CVE-2019-12672 : Vulnerability Insights and Analysis
Learn about CVE-2019-12672, a vulnerability in Cisco IOS XE Software allowing attackers with physical access to execute code with root privileges. Find mitigation steps and impact details.
A vulnerability in Cisco IOS XE Software allows an attacker with physical access to execute arbitrary code with root privileges.
Understanding CVE-2019-12672
This CVE involves an arbitrary code execution vulnerability in Cisco IOS XE Software.
What is CVE-2019-12672?
The flaw in the filesystem of Cisco IOS XE Software enables an authenticated attacker with physical access to execute malicious code on the underlying OS with root privileges. The vulnerability stems from inadequate validation of file locations.
The Impact of CVE-2019-12672
- CVSS Base Score: 6.2 (Medium Severity)
- Attack Vector: Physical
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Privileges Required: High
- Scope: Unchanged
- User Interaction: None
- Exploits: No public announcements or known malicious use reported.
Technical Details of CVE-2019-12672
This section covers specific technical details of the vulnerability.
Vulnerability Description
The vulnerability allows an attacker to insert a specially formatted USB device into the affected Cisco device to execute code with root privileges on the OS.
Affected Systems and Versions
- Affected Product: Cisco IOS XE Software 3.11.1S
- Vendor: Cisco
- Version: Unspecified
Exploitation Mechanism
To exploit the vulnerability, the attacker must physically insert a USB device containing specially crafted code into the affected Cisco device.
Mitigation and Prevention
Steps to address and prevent exploitation of the vulnerability.
Immediate Steps to Take
- Implement strict physical access controls to prevent unauthorized access to devices.
- Regularly monitor and inspect devices for any signs of tampering.
- Disable USB ports on critical devices if not required.
Long-Term Security Practices
- Conduct regular security training for employees on physical security best practices.
- Keep systems up to date with the latest security patches and firmware updates.
Patching and Updates
Apply patches and updates provided by Cisco to address the vulnerability.