CVE-2023-20178

EIP tracks 1 public exploit for CVE-2023-20178. PoCs published by Wh04m1001.

AI-analyzed exploit summary This PoC exploits an arbitrary file delete vulnerability in Cisco Secure Client and AnyConnect VPN software by abusing the vpndownloader.exe process to delete files as NT Authority\SYSTEM. It leverages a race condition and oplock mechanisms to achieve privilege escalation via Windows Installer behavior.

A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM. The client update process is executed after a successful VPN connection is established. This vulnerability exists because improper permissions are assigned to a temporary directory that is created during the update process. An attacker could exploit this vulnerability by abusing a specific function of the Windows installer process. A successful exploit could allow the attacker to execute code with SYSTEM privileges.