Insecure DLL loading in Cisco AnyConnect Secure Mobility Client - CVE-2021-1366
Published: February 17, 2021 / Updated: February 18, 2021
Vulnerability identifier: #VU50785
CSH Severity: Low
CVSS v4: 8.5 [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]
CVE-ID: CVE-2021-1366
CWE-ID: CWE-427
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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 send a crafted IPC message to the AnyConnect process execute arbitrary code on the affected machine with SYSTEM privileges.
Affected software
Cisco AnyConnect Secure Mobility Client
How to mitigate CVE-2021-1366
Install updates from vendor's website.
Cisco AnyConnect Secure Mobility Client - update to 4.9.05042