CVE-2017-12267 : Vulnerability Insights and Analysis

A vulnerability in the ICA accelerator feature for Cisco Wide Area Application Services (WAAS) could allow an unauthorized remote attacker to cause a partial denial of service (DoS) by restarting an ICA application optimization-related process.

Understanding CVE-2017-12267

This CVE involves a flaw in the ICA accelerator feature for Cisco WAAS that could be exploited by sending crafted ICA traffic to the device.

What is CVE-2017-12267?

The vulnerability arises from an incorrect termination of a connection upon receiving an unexpected protocol packet, leading to a DoS condition by causing a process restart.

The Impact of CVE-2017-12267

An unauthorized remote attacker could initiate a partial DoS by causing a restart of an ICA application optimization-related process.
Successful exploitation could lead to unexpected process restarts, resulting in a DoS condition.
The vulnerability affects both Cisco WAAS and Cisco vWAAS.

Technical Details of CVE-2017-12267

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows an attacker to restart an ICA application optimization-related process by sending specifically crafted ICA traffic.

Affected Systems and Versions

Product: Cisco Wide Area Application Services
Versions: Cisco Wide Area Application Services

Exploitation Mechanism

Attacker sends crafted ICA traffic to the targeted device.
Improperly aborting a connection when an unexpected protocol packet is received.

Mitigation and Prevention

Steps to address and prevent the CVE-2017-12267 vulnerability.

Immediate Steps to Take

Apply vendor-provided patches and updates promptly.
Monitor network traffic for any signs of exploitation.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Conduct security training for employees to recognize and report suspicious activities.
Employ intrusion detection and prevention systems.

Patching and Updates

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