cisco-sa-anyconnect-dos-feXq4tAV: Cisco AnyConnect Secure Mobility Client for Windows Denial of Service Vulnerability
First published: Wed Aug 05 2020(Updated: )
A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process on an affected device. A successful exploit could allow the attacker to stop the AnyConnect process, causing a DoS condition on the device. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dos-feXq4tAV
Credit: Antoine Goichot PwC Luxembourg's Cybersecurity team
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco AnyConnect Secure |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-anyconnect-dos-feXq4tAV?
The severity of cisco-sa-anyconnect-dos-feXq4tAV is classified as high due to its potential to cause a denial of service.
How do I fix cisco-sa-anyconnect-dos-feXq4tAV?
To fix cisco-sa-anyconnect-dos-feXq4tAV, update your Cisco AnyConnect Secure Mobility Client to the latest available version.
Who is affected by cisco-sa-anyconnect-dos-feXq4tAV?
Cisco AnyConnect Secure Mobility Client users on Windows are affected by cisco-sa-anyconnect-dos-feXq4tAV.
What type of attack does cisco-sa-anyconnect-dos-feXq4tAV involve?
cisco-sa-anyconnect-dos-feXq4tAV involves a local denial of service attack exploiting the IPC channel.
What are the prerequisites to exploit cisco-sa-anyconnect-dos-feXq4tAV?
An attacker must be authenticated and local to exploit cisco-sa-anyconnect-dos-feXq4tAV.
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