The uml_net utility, part of the kernel-utils package in Red Hat Linux 8.0, was shipped with incorrect permissions.
User-Mode Linux (UML) is a tool to provide a virtual machine in which to run another copy of Linux. In Red Hat linux 8.0, the kernel-utils package contains the UML utilities. One of the UML utilities, uml_net, was incorrectly shipped setuid root.
Local users could control network interfaces, put interfaces into promiscuous mode, and add and remove arp entries and routes.
Apply a patch as described in the Red Hat bulletin. If a patch cannot be applied, you can remove the suid bit from the uml_net package with the following command:
chmod -s /usr/bin/uml_net
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Notified: February 07, 2003 Updated: February 11, 2003
The vendor has not provided us with any further information regarding this vulnerability.
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Group | Score | Vector
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Red Hat has credited Johny Robertson for discovering this issue.
This document was written by Shawn Hernan based on information provided by Red Hat and other sources.
CVE IDs: | CVE-2003-0019
Severity Metric: | 15.82
Date Public: | 2003-02-07
Date First Published: | 2003-02-11
Date Last Updated: | 2003-02-11 18:03 UTC
Document Revision: | 4