#VU54177 Insecure DLL loading in Cisco AnyConnect Secure Mobility Client - CVE-2021-1567
Published: June 16, 2021
Vulnerability identifier: #VU54177
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-1567
CWE-ID: CWE-427
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco AnyConnect Secure Mobility Client
Cisco AnyConnect Secure Mobility Client
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the application loads DLL libraries in an insecure manner. A local user can place a specially crafted .dll file on system, if the VPN Posture (HostScan) Module is installed on the AnyConnect client, and execute arbitrary code with SYSTEM privileges.
The vulnerability affects Cisco AnyConnect Secure Mobility Client for Windows.
Remediation
Install updates from vendor's website.