// For flags

CVE-2020-3564

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software FTP Inspection Bypass Vulnerability

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in the FTP inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass FTP inspection. The vulnerability is due to ineffective flow tracking of FTP traffic. An attacker could exploit this vulnerability by sending crafted FTP traffic through an affected device. A successful exploit could allow the attacker to bypass FTP inspection and successfully complete FTP connections.

Una vulnerabilidad en el motor de inspección FTP de Cisco Adaptive Security Appliance (ASA) Software y Cisco Firepower Threat Defense (FTD) Software, podría permitir a un atacante remoto no autenticado omitir la inspección FTP. La vulnerabilidad es debido a un seguimiento de flujo ineficiente del tráfico FTP. Un atacante podría explotar esta vulnerabilidad mediante el envío de tráfico FTP diseñado por medio de un dispositivo afectado. Una explotación con éxito podría permitir a un atacante omitir la inspección de FTP y completar con éxito las conexiones FTP

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-10-21 CVE Published
  • 2023-07-07 EPSS Updated
  • 2024-11-13 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-284: Improper Access Control
  • CWE-436: Interpretation Conflict
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
Adaptive Security Appliance
Search vendor "Cisco" for product "Adaptive Security Appliance"
< 9.6
Search vendor "Cisco" for product "Adaptive Security Appliance" and version " < 9.6"
-
Affected
Cisco
Search vendor "Cisco"
Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
< 6.3.0.6
Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 6.3.0.6"
-
Affected
Cisco
Search vendor "Cisco"
Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
>= 6.4.0 < 6.4.0.10
Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.4.0 < 6.4.0.10"
-
Affected
Cisco
Search vendor "Cisco"
Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
>= 6.5.0 < 6.5.0.5
Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.5.0 < 6.5.0.5"
-
Affected
Cisco
Search vendor "Cisco"
Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
>= 6.6.0 < 6.6.1
Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.6.0 < 6.6.1"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.8.0 < 9.8.4.26
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.8.0 < 9.8.4.26"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.9.0 < 9.9.2.80
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9.0 < 9.9.2.80"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.10.0 < 9.10.1.44
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.10.0 < 9.10.1.44"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.12.0 < 9.12.4.4
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.12.0 < 9.12.4.4"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.13.0 < 9.13.1.13
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.13.0 < 9.13.1.13"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.14.0 < 9.14.1.19
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.14.0 < 9.14.1.19"
-
Affected