What is CVE-2020-3337?

CVE-2020-3337 is a medium-severity vulnerability in Cisco Umbrella, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2020-06-18.

How severe is CVE-2020-3337?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Open Redirect in Cisco Umbrella

CVE-2020-3337

A vulnerability in the web server of Cisco Umbrella could allow an unauthenticated, remote attacker to redirect a user to an undesired web page. The vulnerability is due to improper input validation of the URL parameters in an HTTP request that is sent to an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request that could cause the web application to redirect the request to a specified malicious URL. A successful exploit could allow the attacker to redirect a user to a malicious website.

Vulnerability class: Open Redirect

EPSS: 0.008 (54.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Cisco Umbrella — versions n/a
Cisco Umbrella

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2020-3337?: CVE-2020-3337 is a medium-severity vulnerability in Cisco Umbrella, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2020-06-18.
How severe is CVE-2020-3337?: Medium severity. CVSS v3 base score is 6.1 out of 10.