CVE-2019-15956 Explained : Impact and Mitigation

A vulnerability in the web management interface of Cisco Web Security Appliance (WSA) allows an authenticated attacker to perform an unauthorized system reset, potentially leading to a denial of service situation.

Understanding CVE-2019-15956

This CVE involves a security vulnerability in Cisco Web Security Appliance (WSA) that could be exploited by an authenticated remote attacker.

What is CVE-2019-15956?

The vulnerability in the web management interface of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) allows an attacker to reset the device without authorization.

The Impact of CVE-2019-15956

The exploitation of this vulnerability could result in unauthorized modification of administrator passwords or resetting network configurations, leading to a denial of service situation.

Technical Details of CVE-2019-15956

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability is caused by improper authorization controls for a specific URL in the web management interface.

Affected Systems and Versions

Product: Cisco Web Security Appliance (WSA)
Vendor: Cisco
Versions: Unspecified

Exploitation Mechanism

To exploit this vulnerability, the attacker needs to send a customized HTTP request to the impacted device.

Mitigation and Prevention

Steps to address and prevent the exploitation of CVE-2019-15956.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly.
Monitor network traffic for any suspicious activity.
Restrict access to the web management interface.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Conduct security training for employees to recognize and report suspicious activities.

Patching and Updates

Cisco may release patches or updates to address this vulnerability. Stay informed through official channels.