#VU52917 Creation of Temporary File With Insecure Permissions in Cisco AnyConnect Secure Mobility Client


Published: 2021-05-06

Vulnerability identifier: #VU52917

Vulnerability risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1429

CWE-ID: CWE-378

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Cisco AnyConnect Secure Mobility Client
Client/Desktop applications / Other client software

Vendor:

Description

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

The vulnerability exists due to a temporary file with insecure permissions is created during the uninstall process. A local user can overwrite the temporary file before it is accessed for execution and execute arbitrary code on the target device.

Mitigation
Install updates from vendor's website.

Vulnerable software versions


External links
http://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.


Latest bulletins with this vulnerability