7
CVSSv3

CVE-2021-34788

Published: 06/10/2021 Updated: 07/11/2023
CVSS v2 Base Score: 6.9 | Impact Score: 10 | Exploitability Score: 3.4
CVSS v3 Base Score: 7 | Impact Score: 5.9 | Exploitability Score: 1
VMScore: 614
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Summary

A vulnerability in the shared library loading mechanism of Cisco AnyConnect Secure Mobility Client for Linux and Mac OS could allow an authenticated, local malicious user to perform a shared library hijacking attack on an affected device if the VPN Posture (HostScan) Module is installed on the AnyConnect client. This vulnerability is due to a race condition in the signature verification process for shared library files that are loaded on an affected device. An attacker could exploit this vulnerability by sending a series of crafted interprocess communication (IPC) messages to the AnyConnect process. A successful exploit could allow the malicious user to execute arbitrary code on the affected device with root privileges. To exploit this vulnerability, the attacker must have a valid account on the system.

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

cisco anyconnect_secure_mobility_client

Vendor Advisories

A vulnerability in the shared library loading mechanism of Cisco AnyConnect Secure Mobility Client for Linux and Mac OS could allow an authenticated, local attacker to perform a shared library hijacking attack on an affected device if the VPN Posture (HostScan) Module is installed on the AnyConnect client This vulnerability is due to a race condit ...