What is CVE-2020-3578?

CVE-2020-3578 is a medium-severity vulnerability in Cisco Adaptive Security Appliance Software, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2020-10-21.

How severe is CVE-2020-3578?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Cisco Adaptive Security Appliance Software

CVE-2020-3578

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access rule and access parts of the WebVPN portal that are supposed to be blocked. The vulnerability is due to insufficient validation of URLs when portal access rules are configured. An attacker could exploit this vulnerability by accessing certain URLs on the affected device.

Vulnerability class: Broken Access Control

EPSS: 0.012 (65.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

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

Frequently asked questions

What is CVE-2020-3578?: CVE-2020-3578 is a medium-severity vulnerability in Cisco Adaptive Security Appliance Software, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2020-10-21.
How severe is CVE-2020-3578?: Medium severity. CVSS v3 base score is 5.3 out of 10.