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 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.
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Configurations

Configuration 1 (hide)

AND
cpe:2.3:a:cisco:anyconnect_secure_mobility_client:*:*:*:*:*:*:*:*
OR cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

Information

Published : 2021-10-06 13:15

Updated : 2021-10-14 11:47


NVD link : CVE-2021-34788

Mitre link : CVE-2021-34788


JSON object : View

CWE
CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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Products Affected

cisco

  • anyconnect_secure_mobility_client

linux

  • linux_kernel

apple

  • macos