CVE-2019-1745 : What You Need to Know

Cisco IOS XE Software Command Injection Vulnerability

Understanding CVE-2019-1745

This CVE involves a security loophole in Cisco IOS XE Software that allows a local attacker with authentication to inject unauthorized commands with elevated privileges.

What is CVE-2019-1745?

The vulnerability in Cisco IOS XE Software enables an authenticated attacker to inject arbitrary commands with elevated privileges due to inadequate input validation.

The Impact of CVE-2019-1745

The vulnerability has a CVSS base score of 8.8 (High severity) with significant impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2019-1745

Vulnerability Description

The flaw in Cisco IOS XE Software allows a local attacker to execute unauthorized commands with elevated privileges by exploiting insufficient input validation.

Affected Systems and Versions

Cisco IOS XE Software versions 3.10.0S to 3.18.5SP and 16.1.1 to 16.9.2a are affected.

Exploitation Mechanism

Attacker needs local access and authentication to inject crafted input to execute unauthorized commands.

Mitigation and Prevention

Immediate Steps to Take

Apply patches provided by Cisco to address the vulnerability.
Monitor network for any unusual activities.

Long-Term Security Practices

Regularly update and patch software to prevent security vulnerabilities.
Implement strong authentication mechanisms and access controls.

Patching and Updates

Refer to Cisco's security advisory for specific patch details and instructions.