Denial of service in Cisco Access Point Software

1) Input validation error

EUVDB-ID: #VU87882

Risk: High

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-20271

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the IP packet processing of Cisco Access Point (AP) Software. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

6300 Series Embedded Services Access Points: All versions

Cisco Aironet 1540 Series Access Points: All versions

Aironet 1560 Series Access Points: All versions

Aironet 1800 Series Access Points: All versions

Aironet 2800 Series Access Points: All versions

Aironet 3800 Series Access Points: All versions

Aironet 4800 Access Points: All versions

Business 100 Series Mesh Extenders: All versions

Business 200 Series Access Points: All versions

Catalyst 9100 Access Points: All versions

Catalyst IW6300 Heavy Duty Series Access Points: All versions

Integrated Access Point on 1100 Integrated Services Routers: All versions

Wide Pluggable Form Factor Wi-Fi 6 AP Module for Industrial Routers: All versions

Wireless LAN Controller Software: - - 8.10

Catalyst 9800 Wireless Controller Software: - - 17.12

Business Wireless Access Point Software: - - 10.9.1

CPE2.3

• cpe:2.3:a:cisco_systems:6300_series_embedded_services_access_points:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_aironet_1540_series:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:aironet_1560_series_access_points:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:aironet_1800_series_access_points:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:aironet_2800_series_access_points:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:aironet_3800_series_access_points:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:aironet_4800_access_points:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:business_100_series_mesh_extenders:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:business_200_series_access_points:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:catalyst_9100_access_points:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:catalyst_iw6300_heavy_duty_series_access_points:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:integrated_access_point_on_1100_integrated_services_routers:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:wide_pluggable_form_factor_wi-fi_6_ap_module_for_industrial_routers:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:wireless_lan_controller_software:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:catalyst_9800_wireless_controller_software:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:business_wireless_access_point_software:*:*:*:*:*:*:*:*

External links

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ap-dos-h9TGGX6W

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.