First published: Wed Jan 13 2021(Updated: )
A vulnerability in the Network Access Manager and Web Security Agent components of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to perform a DLL injection attack. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. The vulnerability is due to insufficient validation of resources that are loaded by the application at run time. An attacker could exploit this vulnerability by inserting a configuration file in a specific path in the system which, in turn, causes a malicious DLL file to be loaded when the application starts. A successful exploit could allow the attacker to execute arbitrary code on the affected machine with SYSTEM privileges.
Credit: ykramarz@cisco.com
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco AnyConnect Secure Mobility Client Windows | <4.9.04043 |
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CVE-2021-1237 has been rated as a high severity vulnerability.
To fix CVE-2021-1237, upgrade the Cisco AnyConnect Secure Mobility Client to version 4.9.04043 or later.
CVE-2021-1237 affects authenticated local users of Cisco AnyConnect Secure Mobility Client versions prior to 4.9.04043 on Windows.
CVE-2021-1237 can facilitate DLL injection attacks by an authenticated local user.
Yes, CVE-2021-1237 specifically affects the Windows version of Cisco AnyConnect Secure Mobility Client.