CVE-2019-1904 : Exploit Details and Defense Strategies

A vulnerability in the web-based user interface (UI) of Cisco IOS XE Software allows unauthorized remote attackers to conduct a cross-site request forgery (CSRF) attack, potentially leading to unauthorized actions on the affected system.

Understanding CVE-2019-1904

This CVE involves a weakness in the web-based UI of Cisco IOS XE Software that could be exploited by attackers to perform CSRF attacks.

What is CVE-2019-1904?

The vulnerability in Cisco IOS XE Software's web UI enables attackers to trick users into executing malicious actions on the system, potentially compromising its security.

The Impact of CVE-2019-1904

Attackers can exploit this vulnerability to carry out CSRF attacks on targeted systems, potentially gaining unauthorized access and control.
The vulnerability affects Cisco devices running vulnerable versions of Cisco IOS XE Software with the HTTP Server feature activated.

Technical Details of CVE-2019-1904

This section provides detailed technical information about the vulnerability.

Vulnerability Description

Insufficient CSRF defenses in the web UI of Cisco IOS XE Software allow attackers to manipulate user actions.

Affected Systems and Versions

Product: Cisco IOS XE Software
Versions Affected: Less than 16.4.1

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
User Interaction: Required

Mitigation and Prevention

Steps to address and prevent the CVE-2019-1904 vulnerability.

Immediate Steps to Take

Disable the HTTP Server feature to eliminate the attack vector.
Use 'no ip http server' or 'no ip http secure-server' commands in global configuration mode.

Long-Term Security Practices

Regularly update and patch Cisco IOS XE Software to mitigate known vulnerabilities.

Patching and Updates

Stay informed about security advisories and apply relevant patches promptly.