To replace a service executable you usually need administrator access anyway.
------Original Message------ From: Madhur Ahuja Sender: full-disclosure-boun...@lists.grok.org.uk To: security-bas...@securityfocus.com To: full-disclosure@lists.grok.org.uk Subject: [Full-disclosure] Privilege escalation on Windows using BinaryPlanting Sent: 25 Sep 2011 19:31 Imagine a situation where I have a Windows system with the restricted user access and want to get the Administrator access. There are many services in Windows which run with SYSTEM account. If there exists even one such service whose executable is not protected by Windows File Protection, isn't it possible to execute malicious code (such as gaining Administrator access) simply by replacing the service executable with malicious one and then restarting the service. As a restricted user, what's stopping me to do this ? Is there any integrity check performed by services.msc or service itself before executing with SYSTEM account ? Madhur _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/ Sent from my POS BlackBerry wireless device, which may wipe itself at any moment _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
