During installation, Netscape 6.0.1 creates a temporary file with insecure options and a predictable name in a world-writable location. By using a symbolic link attack, an attacker could cause overwrite of arbitrary files.
The installation script for Netscape 6.0.1 creates a temporary file with a predictable name in /tmp, a world-writable directory. This file is not checked for prior existence or ownership.
If the installation is done while the system is in multi-user mode, an attacker may be able to create a symbolic link with appropriate name and cause overwrite of any writable file on the system.
The CERT/CC is currently unaware of a practical solution to this problem.
Perform the install in single-user mode.
Vendor| Status| Date Notified| Date Updated
Netscape| | 09 Oct 2001| 15 Nov 2001
If you are a vendor and your product is affected, let us know.
Group | Score | Vector
Base | N/A | N/A
Temporal | N/A | N/A
Environmental | N/A | N/A
This vulnerability was first described by Larry W. Cashdollar.
This document was last modified by Tim Shimeall.