Improper access control in Cisco Access Points

1) Improper access control

EUVDB-ID: #VU56834

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1419

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper checking on file operations within the SSH management interface. A local user can bypass implemented security restrictions and gain elevated privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Aironet 1540 Series Access Points: All versions

Cisco Aironet 1560 Series Access Points: All versions

Cisco Aironet 1800 Series Access Points: All versions

Cisco Aironet 2800 Series Access Points: All versions

Cisco Aironet 3800 Series Access Points: All versions

Aironet 4800 Access Points: All versions

Cisco Catalyst 9100: All versions

Cisco Catalyst IW 6300: All versions

Integrated Access Point on 1100 Integrated Services Routers: All versions

Cisco Wireless LAN Controller: 8.10

Cisco Catalyst 9800 Wireless Controller: 16.12 - 17.4

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-ap-LLjsGxv

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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