CVE-2020-3581 Explained : Impact and Mitigation

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities

Understanding CVE-2020-3581

Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks.

What is CVE-2020-3581?

The vulnerabilities in the web services interface of Cisco ASA and FTD Software allow attackers to execute arbitrary script code or access sensitive information by exploiting insufficient validation of user input.

The Impact of CVE-2020-3581

These vulnerabilities could lead to cross-site scripting attacks, potentially compromising user data and system integrity.

Technical Details of CVE-2020-3581

The following technical details provide insight into the vulnerability.

Vulnerability Description

Insufficient validation of user-supplied input in the web services interface
Attackers can execute arbitrary script code by tricking users into clicking crafted links

Affected Systems and Versions

Product: Cisco Adaptive Security Appliance (ASA) Software
Vendor: Cisco
Versions: Not applicable (n/a)

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Scope: Changed
CVSS Base Score: 6.1 (Medium)

Mitigation and Prevention

Protect your systems from CVE-2020-3581 with the following steps.

Immediate Steps to Take

Apply vendor-released patches and updates promptly
Monitor Cisco's security advisories for any new information

Long-Term Security Practices

Educate users on identifying and avoiding suspicious links
Implement network security measures to detect and prevent XSS attacks

Patching and Updates

Regularly update and patch Cisco ASA and FTD Software to mitigate vulnerabilities