CVE-2020-3117 MEDIUM

CVE-2020-3117: Cisco Web Security Appliance and Cisco Content Security Management Appliance HTTP Header Injection Vulnerability

Vendor Cisco
Product Cisco Web Security Appliance (WSA)
Weakness CWE-113 · HTTP response splitting
Published September 23, 2020
Last update November 13, 2024

CVSS base score

4.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

What the vulnerability does

01Description

A vulnerability in the API Framework of Cisco AsyncOS for Cisco Web Security Appliance (WSA) and Cisco Content Security Management Appliance (SMA) could allow an unauthenticated, remote attacker to inject crafted HTTP headers in the web server's response. The vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user to access a crafted URL and receive a malicious HTTP response. A successful exploit could allow the attacker to inject arbitrary HTTP headers into valid HTTP responses sent to a user's browser.

Key dates

02Disclosure timeline

September 23, 2020 CVE published
November 13, 2024 Record updated