Incorrect Privilege Assignment in Cisco AnyConnect Secure Mobility Client for Windows

1) Incorrect Privilege Assignment

EUVDB-ID: #VU57951

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-2021-40124

CWE-ID: CWE-266 - Incorrect Privilege Assignment

Exploit availability: No

Description

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

The vulnerability exists due to incorrect privilege assignment to scripts executed before user logon in the Network Access Manager (NAM) module. A local administrator can configure a script to be executed before logon and execute arbitrary code with SYSTEM privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco AnyConnect Secure Mobility Client: before 4.10.03104

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-nam-priv-yCsRNUGT

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.