CVE-2021-34788
Description
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.
How to fix
- cisco anyconnect_secure_mobility_client4.10.03104 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco anyconnect_secure_mobility_client | v < 4.10.03104 | 4.10.03104 |
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