Cisco · Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)
CVE-2020-3452
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Read-Only Path Traversal Vulnerability
Qué es
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.
CISA: Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an improper input validation vulnerability when HTTP requests process URLs. 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.
Qué hacer
Apply updates per vendor instructions.
Plazo para las agencias federales de EE. UU.: 3 de mayo de 2022
- Añadida a la lista de CISA
- 3 de noviembre de 2021
- Publicada
- 22 de julio de 2020
- Gravedad
- Alto 7,5 CVSS 3.1
- Probabilidad de ataques en los próximos 30 días (EPSS)
- >99,9% entre el 0,1% superior de todas las vulnerabilidades conocidas
- Debilidad
- CWE-20
- Más detalles
- NVD · CVE.org · CISA
Todas las referencias (5)
- 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-Inclus…
- 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
Más fallos explotados de Cisco
| Añadido | Vulnerabilidad | Producto | Gravedad | Prob. de ataque |
|---|---|---|---|---|
| 24 oct 2024 | ASA and FTD Denial-of-Service | Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) | Media 5,8 | 16% |
| 24 abr 2024 | ASA and FTD Denial of Service | Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) | Alto 8,6 | 70% |
| 24 abr 2024 | ASA and FTD Privilege Escalation | Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) | Media 6,0 | 19% |
| 15 feb 2024 | ASA and FTD Information Disclosure | Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) | Alto 7,5 | 72% |
| 3 nov 2021 | ASA and FTD Cross-Site Scripting (XSS) | Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) | Media 6,1 | 86% |
| 14 oct 2026 | Relative Path Traversal | Secure Email Gateway | Crítica 9,8 | 2,2% |
| 30 sept 2026 | Hex Encoding | Catalyst SD-WAN Manager | Crítica 9,8 | 39% |
| 16 sept 2026 | Incorrect Use of Privileged APIs | Identity Services Engine | Crítica 10,0 | 76% |
Fuentes: Known Exploited Vulnerabilities (CISA, dominio público), CVE records (cve.org) y EPSS (FIRST). La probabilidad de ataque es la estimación EPSS de que alguien intente explotar el fallo en los próximos 30 días.