CVE-2022-20713 : Security Advisory and Response
Learn about CVE-2022-20713 affecting Cisco ASA and FTD Software, allowing remote attackers to launch browser-based attacks. Get insights on the impact, affected versions, and mitigation steps.
A vulnerability in the VPN web client services component of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct browser-based attacks against users of an affected device.
Understanding CVE-2022-20713
This CVE-2022-20713 reveals a security flaw in Cisco ASA Software and Cisco FTD Software that can be exploited by a remote attacker to launch browser-based attacks.
What is CVE-2022-20713?
This CVE is a result of improper input validation in the VPN web client services component, enabling attackers to send malicious requests to affected devices running the vulnerable software.
The Impact of CVE-2022-20713
If successfully exploited, this vulnerability would allow attackers to execute browser-based attacks, including cross-site scripting, on users accessing the affected device.
Technical Details of CVE-2022-20713
Here are the technical details of the CVE:
Vulnerability Description
The vulnerability arises from improper input validation in the VPN web client services component, allowing attackers to manipulate requests to conduct attacks.
Affected Systems and Versions
- Cisco Adaptive Security Appliance (ASA) Software: Multiple versions from 9.8.1 to 9.19.1 are affected.
- Cisco Firepower Threat Defense Software: Versions from 6.2.3 to 7.3.1 are affected.
Exploitation Mechanism
Attackers can exploit this vulnerability by tricking users to visit a malicious website designed to send crafted requests to the vulnerable device for executing attacks.
Mitigation and Prevention
To mitigate the risks associated with CVE-2022-20713, consider the following:
Immediate Steps to Take
Promptly update your Cisco ASA Software and Cisco FTD Software to the latest non-vulnerable versions. Implement security best practices to safeguard your network.
Long-Term Security Practices
Regularly monitor Cisco security advisories, apply patches promptly, and educate users about safe browsing practices to prevent similar future incidents.
Patching and Updates
Stay informed about security updates from Cisco and ensure timely patching of any identified vulnerabilities to enhance the security posture of your network.