Creation of Temporary File With Insecure Permissions in Cisco AnyConnect Secure Mobility Client

1) Creation of Temporary File With Insecure Permissions

EUVDB-ID: #VU52921

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-1496

CWE-ID: CWE-378 - Creation of Temporary File With Insecure Permissions

Exploit availability: No

Description

The vulnerability allows a local user to perform an executable hijacking attack.

The vulnerability exists due to the application loads an executable file from a user-writable directory. A local user can copy a malicious executable file to a specific directory and execute arbitrary code on the target device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco AnyConnect Secure Mobility Client: before 4.9.03022

CPE2.3

• cpe:2.3:a:cisco_systems:cisco_anyconnect_secure_mobility_client:*:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-code-exec-jR3tWTA6

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.