CVE-2020-3452

high Cisco ⚠️ CISA KEV — Exploited in the Wild
CVSS v3 Base Score
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score
100.0%
Exploitation probability in 30 days
Top 0% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Published: July 22, 2020 (2236 days ago)
Last Modified: August 11, 2026
Vendor: Cisco
Source: NVD

⚠️ CISA Known Exploited Vulnerability

Added to KEV: 2021-11-03
Remediation Due: 2022-05-03 (⚠ 1587d overdue)

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.

CWE

CWE-20

Affected Products

cisco adaptive security appliance softwarecisco secure firewall threat defense

References

🔗 packetstormsecurity.com 🔗 packetstormsecurity.com 🔗 packetstormsecurity.com 🔗 packetstormsecurity.com 🔗 tools.cisco.com