CVE-2020-3452

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Read-Only Path Traversal Vulnerability

Basic Information

CVE State: PUBLISHED
Reserved Date: December 12, 2019
Published Date: July 22, 2020
Last Updated: February 04, 2025
Vendor: Cisco
Product: Cisco Adaptive Security Appliance (ASA) Software
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.

CVSS Scores

CVSS v3.1

7.5 - HIGH

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

SSVC Information

Exploitation: active
Automatable: Yes
Technical Impact: partial

Exploit Status

Exploited in the Wild: Yes (added 2021-11-03 00:00:00 UTC) Source
Proof of Concept Available: Yes (added 2024-05-25 08:11:31 UTC) Source

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ro-path-KJuQhB86 http://packetstormsecurity.com/files/158646/Cisco-ASA-FTD-Remote-File-Disclosure.html http://packetstormsecurity.com/files/158647/Cisco-Adaptive-Security-Appliance-Software-9.11-Local-File-Inclusion.html http://packetstormsecurity.com/files/159523/Cisco-ASA-FTD-9.6.4.42-Path-Traversal.html http://packetstormsecurity.com/files/160497/Cisco-ASA-9.14.1.10-FTD-6.6.0.1-Path-Traversal.html

Known Exploited Vulnerability Information

Source	Added Date
CISA	2021-11-03 00:00:00 UTC

Scanner Integrations

Scanner	URL	Date Detected
Nuclei	https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-3452.yaml	2025-04-26 00:00:00 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

Cappricio-Securities/CVE-2020-3452

Type: github • Created: 2024-05-25 08:11:31 UTC • Stars: 0

Cisco Adaptive Security Appliance (ASA)/Firepower Threat Defense (FTD) - Local File Inclusion

Aviksaikat/CVE-2020-3452

Type: github • Created: 2021-11-03 07:27:14 UTC • Stars: 1

Test vulnerability of CVE-2020-3452

sujaygr8/CVE-2020-3452

Type: github • Created: 2021-06-10 05:09:52 UTC • Stars: 0

faisalfs10x/Cisco-CVE-2020-3452-shodan-scanner

Type: github • Created: 2021-02-04 16:50:27 UTC • Stars: 1

simple bash script of CVE-2020-3452 Cisco ASA / Firepower Read-Only Path Traversal Vulnerability checker

darklotuskdb/CISCO-CVE-2020-3452-Scanner-Exploiter

Type: github • Created: 2021-01-05 14:41:13 UTC • Stars: 99

CISCO CVE-2020-3452 Scanner & Exploiter

cygenta/CVE-2020-3452

Type: github • Created: 2020-12-13 13:47:38 UTC • Stars: 26

grim3/CVE-2020-3452

Type: github • Created: 2020-11-18 21:31:50 UTC • Stars: 4

CVE-2020-3452

3ndG4me/CVE-2020-3452-Exploit

Type: github • Created: 2020-09-28 05:00:37 UTC • Stars: 24

Just basic scanner abusing CVE-2020-3452 to enumerate the standard files accessible in the Web Directory of the CISCO ASA applicances.

murataydemir/CVE-2020-3452

Type: github • Created: 2020-08-13 08:22:27 UTC • Stars: 7

[CVE-2020-3452] Cisco Adaptive Security Appliance (ASA) & Cisco Firepower Threat Defense (FTD) Web Service Read-Only Directory Traversal

0x5ECF4ULT/CVE-2020-3452

Type: github • Created: 2020-08-01 08:27:11 UTC • Stars: 24

CVE-2020-3452 exploit

foulenzer/CVE-2020-3452

Type: github • Created: 2020-07-25 16:11:55 UTC • Stars: 3

Little, stupid python validator(?) for CVE-2020-3452 on CISCO devices.

mr-r3b00t/CVE-2020-3452

Type: github • Created: 2020-07-24 16:26:52 UTC • Stars: 0

PR3R00T/CVE-2020-3452-Cisco-Scanner

Type: github • Created: 2020-07-24 15:04:45 UTC • Stars: 25

CVE-2020-3452 Cisco ASA Scanner -unauth Path Traversal Check

XDev05/CVE-2020-3452-PoC

Type: github • Created: 2020-07-24 00:39:11 UTC • Stars: 2