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.

A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client Software could allow an authenticated, local attacker to overwrite VPN profiles on an affected device. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process. A successful exploit could allow the attacker to modify VPN profile files. To exploit this vulnerability, the attacker must have valid credentials on the affected system.

A vulnerability in the Profile Editor of the Cisco AnyConnect Secure Mobility Client could allow an unauthenticated, local attacker to have read and write access to information stored in the affected system. The vulnerability is due to improper handling of the XML External Entity (XXE) entries when parsing an XML file. An attacker could exploit this vulnerability by injecting a crafted XML file with malicious entries, which could allow the attacker to read and write files. Cisco Bug IDs: CSCvg19341.

A vulnerability in how DLL files are loaded with Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to install and run an executable file with privileges equivalent to the Microsoft Windows SYSTEM account. The vulnerability is due to incomplete input validation of path and file names of a DLL file before it is loaded. An attacker could exploit this vulnerability by creating a malicious DLL file and installing it in a specific system directory. A successful exploit could allow the attacker to execute commands on the underlying Microsoft Windows host with privileges equivalent to the SYSTEM account. The attacker would need valid user credentials to exploit this vulnerability. This vulnerability affects all Cisco AnyConnect Secure Mobility Client for Windows software versions prior to 4.4.02034. Cisco Bug IDs: CSCvc97928.

Cisco AnyConnect Secure Mobility Client before 3.1(8009) and 4.x before 4.0(2052) on Linux does not properly implement unspecified internal functions, which allows local users to obtain root privileges via crafted vpnagent options, aka Bug ID CSCus86790.

The IPC channel in Cisco AnyConnect Secure Mobility Client 4.0(.00051) and earlier allows local users to write to arbitrary userspace memory locations, and consequently gain privileges, via crafted messages, aka Bug ID CSCus79195.

The Hostscan module in Cisco AnyConnect Secure Mobility Client 4.0(.00051) and earlier allows local users to write to arbitrary files via crafted IPC messages, aka Bug ID CSCus79173.

Cisco AnyConnect Secure Mobility Client 4.0(.00051) and earlier does not properly implement access control for IPC messages, which allows local users to write to arbitrary files via crafted messages, aka Bug ID CSCus79392.

Cisco AnyConnect Secure Mobility Client 4.0(.00051) and earlier allows local users to gain privileges via crafted IPC messages that trigger use of root privileges for a software-package installation, aka Bug ID CSCus79385.