CVEvulnerability

CVE-2020-3564

5.3 MEDIUM Published 2020-10-21 Modified 2026-08-11 Official page ↗
Status
Modified
Published
2020-10-21
Last modified
2026-08-11
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 3.0 ([email protected])
5.8 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
CWE-284, CWE-436

Description

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.

Affected configurations

• cisco adaptive security appliance (< 9.6) • cisco secure firewall threat defense (< 6.3.0.6) • cisco secure firewall threat defense (>= 6.4.0 < 6.4.0.10) • cisco secure firewall threat defense (>= 6.5.0 < 6.5.0.5) • cisco secure firewall threat defense (>= 6.6.0 < 6.6.1) • cisco adaptive security appliance software (>= 9.8.0 < 9.8.4.26) • cisco adaptive security appliance software (>= 9.9.0 < 9.9.2.80) • cisco adaptive security appliance software (>= 9.10.0 < 9.10.1.44) • cisco adaptive security appliance software (>= 9.12.0 < 9.12.4.4) • cisco adaptive security appliance software (>= 9.13.0 < 9.13.1.13) • cisco adaptive security appliance software (>= 9.14.0 < 9.14.1.19)

Related

Weakness · CWE (2)

  • CWE-284 Improper Access Control weakness
  • CWE-436 Interpretation Conflict weakness

References