Vulnerability identifier: #VU27581
Vulnerability risk: Medium
CVSSv3.1: 4.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-93
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco Umbrella
Client/Desktop applications /
Other client software
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform CRLF injection attacks.
The vulnerability exists due to insufficient filtration of user-supplied data in the web server. A remote attacker can trick a victim to access a malicious URL and inject arbitrary HTTP headers into valid HTTP responses sent to the browser of the user.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
Cisco Umbrella: All versions
External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-head-inject-n4QArJH
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.