CVE-2020-3207 : Vulnerability Insights and Analysis
Learn about CVE-2020-3207, a command injection vulnerability in Cisco IOS XE Software switches, allowing attackers to execute malicious code during device boot. Find mitigation steps and impacts here.
A vulnerability in the processing of boot options of specific Cisco IOS XE Software switches could allow an authenticated, local attacker to conduct a command injection attack during device boot.
Understanding CVE-2020-3207
This CVE involves a command injection vulnerability in Cisco IOS XE Software switches, potentially enabling attackers to execute malicious code during device boot.
What is CVE-2020-3207?
The vulnerability allows an authenticated, local attacker with root shell access to execute a command injection attack during device boot by modifying boot options.
The Impact of CVE-2020-3207
- CVSS Base Score: 6.7 (Medium Severity)
- Attack Vector: Local
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- The exploit could allow an attacker to bypass Secure Boot and run malicious code with root-level privileges.
Technical Details of CVE-2020-3207
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from insufficient input validation checks during the processing of boot options, enabling attackers to inject and execute malicious commands.
Affected Systems and Versions
- Affected Product: Cisco IOS XE Software 16.9.2
- Vendor: Cisco
- Affected Version: n/a
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating device boot options to execute their own code, potentially bypassing Secure Boot mechanisms.
Mitigation and Prevention
Protecting systems from CVE-2020-3207 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-provided patches or updates promptly.
- Monitor network traffic for any signs of exploitation.
- Restrict access to vulnerable systems.
Long-Term Security Practices
- Regularly update and patch all software and firmware.
- Implement strong access controls and least privilege principles.
- Conduct regular security assessments and audits.
Patching and Updates
- Cisco has likely released patches to address this vulnerability. Ensure all affected systems are updated with the latest security fixes.