CVE-2017-6638
HighSummary
A vulnerability in how DLL files are loaded with Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to install and run an executable file with privileges equivalent to the Microsoft Windows SYSTEM account.
Risk Assessment
An attacker with valid user credentials could exploit this vulnerability to execute commands on the underlying Windows host with elevated privileges, posing a significant security risk.
Recommendation
It is recommended to update Cisco AnyConnect Secure Mobility Client to version 4.4.02034 or later to mitigate this vulnerability.
Other vulnerabilities in Cisco AnyConnect Secure Mobility Client for Windows
Original NVD description (English source)
A vulnerability in how DLL files are loaded with Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to install and run an executable file with privileges equivalent to the Microsoft Windows SYSTEM account. The vulnerability is due to incomplete input validation of path and file names of a DLL file before it is loaded. An attacker could exploit this vulnerability by creating a malicious DLL file and installing it in a specific system directory. A successful exploit could allow the attacker to execute commands on the underlying Microsoft Windows host with privileges equivalent to the SYSTEM account. The attacker would need valid user credentials to exploit this vulnerability. This vulnerability affects all Cisco AnyConnect Secure Mobility Client for Windows software versions prior to 4.4.02034. Cisco Bug IDs: CSCvc97928.