Privilege escalation in Cisco AsyncOS for Cisco Content Security Management Appliance (SMA)

1) Improper Privilege Management

EUVDB-ID: #VU52906

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1447

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to a procedural flaw in the password generation algorithm. A local user can enable specific Administrator-only features and connect to the appliance through the CLI with elevated privileges.

Successful exploitation of the vulnerability may allow execution of arbitrary code with root privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco AsyncOS for Cisco Content Security Management Appliance: before 13.8.1 068

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sma-priv-esc-JJ8zxQsC
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx14681

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.

Is there known malware, which exploits this vulnerability?

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