CVE-2021-1366

Description

A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack on an affected device if the VPN Posture (HostScan) Module is installed on the AnyConnect client. This vulnerability is due to insufficient validation of resources that are loaded by the application at run time. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process. A successful exploit could allow the attacker to execute arbitrary code on the affected machine with SYSTEM privileges. To exploit this vulnerability, the attacker needs valid credentials on the Windows system.

Risk Information

Base Score

7.8

MODERATE

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.8

Associated Vulnerability

Vulnerability	OS Platform
Vulnerability CVE-2021-1366 are affected in Cisco AnyConnect Secure Mobility Client For Windows 4.9.04043	Windows
Vulnerabilities CVE-2021-1366,CVE-2024-20474 are affected in Cisco AnyConnect Secure Mobility Client For Windows 4.9.04043	Windows
Vulnerabilities CVE-2021-1366,CVE-2023-20240,CVE-2023-20241,CVE-2024-20474 are affected in Any Connect (Microsoft Store) 4.9.04043	Windows
Uncontrolled Search Path Element Vulnerability (CVE-2021-1366)	NCM

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-338372	Cisco AnyConnect Secure Mobility Client (4.10.08029) (Manual Upload Required)
PATCH-338372	Cisco AnyConnect Secure Mobility Client (4.10.08029) (Manual Upload Required)

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234