CVE-2020-3452

Published: Jul 22, 2020Modified: Oct 28, 2025CISA KEV

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

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 conduct directory traversal attacks and read sensitive files on a targeted system. The vulnerability is due to a lack of proper input validation of URLs in HTTP requests processed by an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device. The web services file system is enabled when the affected device is configured with either WebVPN or AnyConnect features. This vulnerability cannot be used to obtain access to ASA or FTD system files or underlying operating system (OS) files.

Affected (12)

Products: Cisco: Adaptive Security Appliance Software, Firepower Threat Defense

Cisco

2 products

Adaptive Security Appliance Software

Firepower Threat Defense

Configuration A

7 vulnerable · 12 platform

Vulnerable Software	Affected Versions
Cisco Adaptive Security Appliance Software	From 9.10 to 9.10.1.42
Cisco Adaptive Security Appliance Software	From 9.12 to 9.12.3.12
Cisco Adaptive Security Appliance Software	From 9.13 to 9.13.1.10
Cisco Adaptive Security Appliance Software	From 9.14 to 9.14.1.10
Cisco Adaptive Security Appliance Software	From 9.6 to 9.6.4.42
Cisco Adaptive Security Appliance Software	From 9.8 to 9.8.4.20
Cisco Adaptive Security Appliance Software	From 9.9 to 9.9.2.74

Running on/with	Platform Versions
Cisco Asa 5505	All versions
Cisco Asa 5510	All versions
Cisco Asa 5512 X	All versions
Cisco Asa 5515 X	All versions
Cisco Asa 5520	All versions
Cisco Asa 5525 X	All versions
Cisco Asa 5540	All versions
Cisco Asa 5545 X	All versions
Cisco Asa 5550	All versions
Cisco Asa 5555 X	All versions
Cisco Asa 5580	All versions
Cisco Asa 5585 X	All versions

Configuration B

5 vulnerable

Vulnerable Software	Affected Versions
Cisco Firepower Threat Defense	From 6.2.3 to 6.2.3.16
Cisco Firepower Threat Defense	From 6.3.0 to 6.3.0.6
Cisco Firepower Threat Defense	From 6.4.0 to 6.4.0.10
Cisco Firepower Threat Defense	From 6.5.0 to 6.5.0.5
Cisco Firepower Threat Defense	From 6.6.0 to 6.6.0.1