Anyone with File and Print sharing enabled and using share level access are exposed to this threat, a common source of security problem under Windows operating systems. The flaw in an unsecured windows shares can be exploited by intruders in an automated way to place tools on large numbers of Windows based computers attached to the Internet. An unsecured windows shares together with DOS tools can become a great opportunity for intruders to launch DOS attacks. It was discovered recently that there is a flaw in the way that Windows handles the passwords for file sharing. An attacker still can access a password protected shared driving without knowing the full password just the first character of it. A special program can be easily written to exploit the problem and in fact are already circulating around the Net, to be abused by intruders everywhere. 

A malicious web developer may attach a script to something you send to a web site. When the web site you are browsing from your home PC responds back to you, the malicious script embedded in it comes along into your browser. Browsing untrusted sites, email messages, or newsgroups postings and using interactive forms on an untrustworthy site can expose your web browser to malicious scripts. By exploiting this codes, the confidentiality of your information is at risk as an attacker can steal your password and other sensitive information. Attackers may also be able to use malicious scripts to infect cookies with copies of themselves. If the infected cookie is sent back to a vulnerable web site and passed back to your browser, the malicious script may start running again.

 

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