Improper access control in Cisco Application Policy Infrastructure Controller and Cloud APIC

1) Improper access control

EUVDB-ID: #VU56110

Risk: Medium

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

CVE-ID: CVE-2021-1581

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in an API endpoint. A remote attacker can use a specific API endpoint to upload files and fill the upload partition of the affected device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Application Policy Infrastructure Controller: - - 5.2

Cisco Cloud Application Policy Infrastructure Controller: - - 5.2

CPE2.3

• cpe:2.3:a:cisco_systems:cisco_application_policy_infrastructure_controller:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_application_policy_infrastructure_controller:3.2:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_application_policy_infrastructure_controller:4.0:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_cloud_application_policy_infrastructure_controller:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_cloud_application_policy_infrastructure_controller:3.2:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_cloud_application_policy_infrastructure_controller:4.0:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-capic-mdvul-HBsJBuvW

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.