Security features bypass in multiple Cisco Products

1) Security features bypass

EUVDB-ID: #VU82708

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-20071

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a flaw in the FTP module of the Snort detection engine. A remote attacker can send specially crafted FTP traffic, bypass FTP inspection and deliver a malicious payload.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Firepower Threat Defense (FTD): - - 7.3.0

FirePOWER Services: All versions

Open Source Snort 2: All versions

Cisco UTD Snort IPS Engine Software for IOS XE: 17.3 - 17.12

Cisco UTD Engine for IOS XE SD-WAN: 17.3 - 17.12

Cisco 1000 Series Integrated Services Routers: All versions

4000 Series Integrated Services Routers: All versions

Catalyst 8000V Edge Software: All versions

Catalyst 8200 Series Edge Platforms: All versions

Catalyst 8300 Series Edge Platforms: All versions

Catalyst 8500L Series Edge Platforms: All versions

Cloud Services Routers 1000V Series: All versions

Integrated Services Virtual Router: All versions

Meraki MX Security Appliances: MX15 - MX18

Cisco Meraki MX64: All versions

Cisco Meraki MX64W: All versions

Cisco Meraki MX65: All versions

Cisco Meraki MX65W: All versions

Cisco Meraki MX67: All versions

Cisco Meraki MX67C: All versions

Cisco Meraki MX67W: All versions

Cisco Meraki MX68: All versions

Cisco Meraki MX68W: All versions

Cisco Meraki MX68WC: All versions

Cisco Meraki MX75: All versions

Cisco Meraki MX84: All versions

Cisco Meraki MX85: All versions

Cisco Meraki MX95: All versions

Cisco Meraki MX100: All versions

Cisco Meraki MX105: All versions

Cisco Meraki MX250: All versions

Cisco Meraki MX400: All versions

Cisco Meraki MX450: All versions

Cisco Meraki MX600: All versions

Cyber Vision: 3.2.4 - 4.1

Umbrella Secure Internet Gateway: All versions

Open Source Snort 3: before 3.1.32.0

CPE2.3

• cpe:2.3:h:cisco_systems:cisco_ftd:6.3.0:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_ftd:6.4.0:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_ftd:6.5.0:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_ftd:6.6.0:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_ftd:6.7.0:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_ftd:7.0.0:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_ftd:7.1.0:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_ftd:7.2.0:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_ftd:7.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:firepower_services:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:open_source_snort_2:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_utd_snort_ips_engine_software_for_ios_xe:17.3:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_utd_engine_for_ios_xe_sd-wan:17.3:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_1000_series_integrated_services_routers:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:4000_series_integrated_services_routers:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:catalyst_8000v_edge_software:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:catalyst_8200_series_edge_platforms:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:catalyst_8300_series_edge_platforms:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:catalyst_8500l_series_edge_platforms:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cloud_services_routers_1000v_series:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:integrated_services_virtual_router:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:meraki_mx_security_appliances:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx64:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx64w:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx65:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx65w:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx67:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx67c:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx67w:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx68:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx68w:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx68wc:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx75:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx84:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx85:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx95:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx100:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx105:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx250:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx400:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx450:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_meraki_mx600:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cyber_vision:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:umbrella_secure_internet_gateway:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:open_source_snort_3:*:*:*:*:*:*:*:*

External links

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-ftd-zXYtnjOM

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.