Insufficient verification of ASDM images in Cisco ASA

1) Insufficient verification of data authenticity

EUVDB-ID: #VU64596

Risk: Medium

CVSSv3.1: 8.2 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-20829

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

Exploit availability: Yes

Description

The vulnerability allows a remote user compromise the affected system.

The vulnerability exists due to insufficient verification of Cisco Adaptive Security Device Manager (ASDM) images deployed to Cisco Adaptive Security Appliance (ASA) Software. A remote privileged user can upload a malicious ASDM image to a device that is running Cisco ASA Software and compromise the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Adaptive Security Appliance (ASA): 9.0 - 9.18.1

Cisco Adaptive Security Device Manager (ASDM): 7.15.1 - 7.18

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-asdm-sig-NPKvwDjm
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwb05264
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwb05291

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.