Insecure DLL loading in Cisco Proximity Desktop for Windows

1) Insecure DLL loading

EUVDB-ID: #VU49586

Risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1240

CWE-ID: CWE-427 - Uncontrolled Search Path Element

Exploit availability: No

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to incorrect handling of directory paths at run time in the loading process of specific DLLs. A local user can place a malicious DLL file in a specific location on the targeted system and execute arbitrary code with the privileges of another user’s account.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Proximity Desktop for Windows: before 3.1.0

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-proximity-dll-UvW4VHPM

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.