Denial of service in Cisco 1000 Series Connected Grid Router

1) Uncaught Exception

EUVDB-ID: #VU62341

Risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-20761

CWE-ID: CWE-248 - Uncaught Exception

Exploit availability: No

Description

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

The vulnerability exists due to insufficient input validation of received traffic in the integrated wireless access point (AP) packet processing. A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

1000 Series Connected Grid Routers: All versions

Cisco IOS: 15.9(03.00b)M3

CPE2.3

• cpe:2.3:a:cisco_systems:1000_series_connected_grid_routers:*:*:*:*:*:*:*:*
• cpe:2.3:o:cisco_systems:cisco_ios:15.9(03.00b)M3:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cgr1k-ap-dos-mSZR4QVh

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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