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Cisco AnyConnect Secure Mobility Client: executing DLL code
Synthesis of the vulnerability
An attacker can create a malicious DLL, and then put it in the current directory of Cisco AnyConnect Secure Mobility Client for MS-Windows, in order to run code with the system privileges.
Vulnerable products: Cisco AnyConnect Secure Mobility Client.
Severity of this weakness: 2/4.
Consequences of an attack: administrator access/rights, privileged access/rights.
Hacker's origin: user shell.
Creation date: 08/06/2017.
Références of this bulletin: CERTFR-2017-AVI-171, cisco-sa-20170607-anyconnect, CVE-2017-6638, VIGILANCE-VUL-22920.
Description of the vulnerability
The Cisco AnyConnect Secure Mobility Client product uses external shared libraries (DLL).
However, if the working directory contains a malicious DLL, it is automatically loaded.
An attacker can therefore create a malicious DLL, and then put it in the current directory of Cisco AnyConnect Secure Mobility Client for MS-Windows, in order to run code with the system privileges.
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