Remote command injection in Cisco Adaptive Security Appliance Software

1) Improper Neutralization of Expression/Command Delimiters

EUVDB-ID: #VU99334

Risk: Medium

CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-20329

CWE-ID: CWE-146 - Improper Neutralization of Expression/Command Delimiters

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute operating system commands as root.

The vulnerability exists due to insufficient validation of user input in the SSH subsystem. A remote user can execute arbitrary commands on the underlying operating system with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Adaptive Security Appliance (ASA): 9.17.1 - 9.19.1.18

CPE2.3

• cpe:2.3:h:cisco_systems:asa:9.19.1.18:*:*:*:*:*:*:*

External links

http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-rce-gRAuPEUF
http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO
http://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300

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.