#VU62670 Incorrect Privilege Assignment in Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) - CVE-2022-20759

Vulnerability identifier: #VU62670

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-20759

CWE-ID: CWE-266

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Adaptive Security Appliance (ASA)
Hardware solutions / Security hardware applicances
Cisco Firepower Threat Defense (FTD)
Hardware solutions / Security hardware applicances

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to improper separation of authentication and authorization scopes in the web services interface for remote access VPN feature. A remote authenticated user can send specially crafted HTTP requests to gain privilege level 15 access to the web management interface of the device

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Adaptive Security Appliance (ASA): before 9.8.4.43, 9.12.4.38, 9.14.4, 9.15.1.21, 9.16.2.13, 9.17.1.7, 9.8.4.43, 9.8.4.43

Cisco Firepower Threat Defense (FTD): before 6.4.0.15, 6.6.5.2, 6.7.0.4, 7.0.2, 7.1.0.1, 6.4.0.15, 6.4.0.15, 6.4.0.15, 6.4.0.15, 6.4.0.15

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-mgmt-privesc-BMFMUvye
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvz92016

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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