CVE-2018-0373 : Security Advisory and Response

A vulnerability in the Cisco AnyConnect Secure Mobility Client for Windows Desktop could allow an authenticated attacker to trigger a denial of service (DoS) situation. The weakness lies in the vpnva-6.sys and vpnva64-6.sys files for 32-bit and 64-bit Windows, respectively.

Understanding CVE-2018-0373

This CVE identifies a vulnerability in the Cisco AnyConnect Secure Mobility Client for Windows Desktop that could lead to a DoS attack.

What is CVE-2018-0373?

The vulnerability in the vpnva-6.sys and vpnva64-6.sys files of the Cisco AnyConnect Secure Mobility Client for Windows Desktop allows a local authenticated attacker to induce a DoS situation by exploiting inadequate data verification.

The Impact of CVE-2018-0373

The vulnerability could be exploited by an attacker to cause a DoS condition on the affected system, potentially disrupting services and operations.

Technical Details of CVE-2018-0373

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability is a result of insufficient validation of user-supplied data in the vpnva-6.sys and vpnva64-6.sys files of the Cisco AnyConnect Secure Mobility Client for Windows Desktop.

Affected Systems and Versions

Product: Cisco AnyConnect Secure Mobility Client unknown
Versions: Cisco AnyConnect Secure Mobility Client unknown

Exploitation Mechanism

An authenticated attacker local to the system can exploit the vulnerability by sending a malicious request to the application.
Successful exploitation could lead to a DoS condition on the affected system.

Mitigation and Prevention

Protecting systems from CVE-2018-0373 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches and updates provided by Cisco to address the vulnerability.
Monitor network traffic for any signs of exploitation.

Long-Term Security Practices

Regularly update and patch all software and applications to prevent vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Stay informed about security advisories and updates from Cisco.
Ensure timely deployment of patches to secure systems against known vulnerabilities.