CVE-2021-34788

published 2021-10-06

CVE-2021-34788: A vulnerability in the shared library loading mechanism of Cisco AnyConnect Secure Mobility Client for Linux and Mac OS could allow an authenticated, local…

Priority P3 37 high 7 CVSS 3.1

AV L AC H PR L UI N S U C H I H A H

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 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 attacker 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.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
cisco	anyconnect_secure_mobility	—	—
cisco	anyconnect_secure_mobility_client	< 4.10.03104	4.10.03104
cisco	cisco_anyconnect_secure_mobility_client	—	—

CVSS provenance

nvd v3.1 7.0 HIGH CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 6.9 MEDIUM AV:L/AC:M/Au:N/C:C/I:C/A:C

vendor_cisco 7.0 HIGH

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CWE-367