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Cisco Umbrella Carriage Return Line Feed Injection Vulnerability

cisco-sa-umbrella-head-inject-n4QArJH · Medium · Published · Updated

A vulnerability in the web server of Cisco Umbrella could allow an unauthenticated, remote attacker to perform a carriage return line feed (CRLF) injection attack against a user of an affected service. 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. A successful exploit could allow the attacker to inject arbitrary HTTP headers into valid HTTP responses sent to the browser of the user. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-head-inject-n4QArJH

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2020-3246
Cisco Bug IDsCSCvs93297
CVSS ScoreBase 4.7
Base 4.7 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:X/RL:X/RC:X
Product Names From Source
Cisco Umbrella

Related Products

Product CVE Evidence