CVE-2020-3561
Description
A vulnerability in the Clientless SSL VPN (WebVPN) of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to inject arbitrary HTTP headers in the responses of the affected system. The vulnerability is due to improper input sanitization. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to conduct a CRLF injection attack, adding arbitrary HTTP headers in the responses of the system and redirecting the user to arbitrary websites.
Risk Information
Base Score
4.7
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
EPSS Score
Exploitation Probability
0.363
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN CRLF Injection Vulnerability For Cisco Adaptive Security Appliance (ASA) Software | NCM |
| Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN CRLF Injection Vulnerability For Cisco Firepower Threat Defense Software | NCM |
| Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection) Vulnerability (CVE-2020-3561) | NCM |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-1706057 | Security Update for Cisco Adaptive Security Appliance (ASA) Software 99.17(1.69) |
| PATCH-1706067 | Security Update for Cisco Firepower Threat Defense Software Gibraltar-16.12.5 |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234