5.3mediumMedium
CVE-2020-3578
Cisco Secure Firewall Threat Defense
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.
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, no account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 5.3 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- Weakness
- CWE-863
- Assigned by
- psirt@cisco.com
Dates
- Published
- 2020-10-21
- Last modified
- 2026-08-11
- Sources
- NVD
Affected products
- Cisco Secure Firewall Threat Defense6.4.0 - 6.4.0.10
- Cisco Firepower Threat Defense- 6.3.0.6, 6.5.0 - 6.5.0.5, 6.6.0 - 6.6.1
- Cisco Adaptive Security Appliance Software- 9.6.4.45, 9.7 - 9.8.4.26, 9.9 - 9.9.2.80, 9.10 - 9.10.1.44, 9.12 - 9.12.4.4, 9.13 - 9.13.1.13, 9.14 - 9.14.1.19
As listed in the NVD configuration data. Not a statement about your estate.