CVE-2021-1237 is a vulnerability in Cisco Anyconnect Secure Mobility Client
Published on January 13, 2021
Cisco AnyConnect Secure Mobility Client for Windows DLL Injection Vulnerability
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.
Vulnerability Analysis
CVE-2021-1237 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a DLL preloading Vulnerability?
The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.
CVE-2021-1237 has been classified to as a DLL preloading vulnerability or weakness.
Products Associated with CVE-2021-1237
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Affected Versions
Cisco AnyConnect Secure Mobility Client Version n/a is affected by CVE-2021-1237Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.