Netscape and Mozilla leak Web surfing data bug
Posted by Daniel Fleshbourne on 16 September 2002 - 10:23 · no comments & 135 views
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Full name: Daniel Fleshbourne
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Netscape and other Web browsers based on the Mozilla development project contain a bug that leaks users' Web surfing data, according to a new report.
The bug reveals the URL of the page a user is viewing to the Web server of the site visited last. This allows a Web server to track where users go after they leave the site, even if the next Web address comes from a bookmark or is manually typed into the browser.
Researcher Sven Neuhaus, who published a security alert about the issue to the Bugtraq mailing list on Wednesday, said he had confirmed the bug in Mozilla 1.0, 1.0.1 and 1.1, though it probably also exists in older Mozilla versions. It also appears in browsers based on Mozilla's technology, including Netscape 7 and Galeon, a Linux application, he said.
MS02-044 (Q328130): Unsafe Functions in Office Web Components
The Office Web Components (OWC) contain several ActiveX controls that give users limited functionality of Microsoft Office in a web browser without requiring that the user install the full Microsoft Office application. This allows users to utilize Microsoft Office applications in situations where installation of the full application is infeasible or undesirable.
The control contains three security vulnerabilities, each of which could be exploited either via a web site or an HTML mail.
MS02-045 (Q326830): Unchecked Buffer in Network Share Provider Can Lead to Denial of Service
SMB (Server Message Block) is the protocol Microsoft uses to share files, printers, serial ports, and also to communicate between computers using named pipes and mail slots. In a networked environment, servers make file systems and resources available to clients. Clients make SMB requests for resources and servers make SMB responses in what described as a client server, request-response protocol.
By sending a specially crafted packet request, an attacker can mount a denial of service attack on the target server machine and crash the system. The attacker could use both a user account and anonymous access to accomplish this. Though not confirmed, it may be possible to execute arbitrary code.
MS02-046 (Q327521): Buffer Overrun in TSAC ActiveX Control Could Allow Code Execution
A security vulnerability results because the control contains an unchecked buffer in the code that processes one of the input parameters. By calling the control on a client system and overrunning the buffer, an attacker could gain the ability to run code in the security context of the currently logged on user. This would enable the attacker to take any desired action on the user's system. The attacker could mount an attack by either hosting a web page that exploits the vulnerability against any user who visits it, or by sending an HTML mail to another user.