#VU47886 CRLF injection in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2020-3561

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Main Vulnerability Database Vulnerabilities #VU47886

#VU47886 CRLF injection in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2020-3561

Published: October 21, 2020 / Updated: October 22, 2020


Vulnerability identifier: #VU47886
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-3561
CWE-ID: CWE-93
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to inject arbitrary data in server response.

The vulnerability exists due to insufficient validation of attacker-supplied data in the Clientless SSL VPN (WebVPN). A remote attacker can trick a victim to click a specially crafted link and redirect the user to arbitrary websites.


Remediation

Install updates from vendor's website.

External links