A vulnerability in the log subscription subsystem of Cisco AsyncOS for the Cisco Secure Web Appliance (formerly Web Security Appliance) could allow an authenticated, local malicious user to perform command injection and elevate privileges to root. This vulnerability is due to insufficient validation of user-supplied input for the web interface and CLI. An attacker could exploit this vulnerability by authenticating to the affected device and injecting scripting commands in the scope of the log subscription subsystem. A successful exploit could allow the malicious user to execute arbitrary commands on the underlying operating system and elevate privileges to root.
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Cisco this week emitted patches for four sets of critical-severity security holes in its products along with other fixes.
The worst of the bugs can be exploited by sending specially crafted IP packets to a vulnerable installation, and overflowing a memory buffer to ultimately execute code as root on the machine, allowing the box to be completely commandeered. Another set of flaws can be abused by sending HTTP requests that trigger arbitrary command execution to again hijack the machine. Yo...