Vulnerability Note VU#134025

kernel-utils sets insecure permissions on "uml_net" utility

Original Release date: 11 Feb 2003 | Last revised: 11 Feb 2003

Overview

The uml_net utility, part of the kernel-utils package in Red Hat Linux 8.0, was shipped with incorrect permissions.

Description

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.

Impact

Local users could control network interfaces, put interfaces into promiscuous mode, and add and remove arp entries and routes.

Solution

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

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Red Hat Inc.Affected07 Feb 200311 Feb 2003
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A

References

Credit

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.

Other Information

  • CVE IDs: CAN-2003-0019
  • Date Public: 07 Feb 2003
  • Date First Published: 11 Feb 2003
  • Date Last Updated: 11 Feb 2003
  • Severity Metric: 15.82
  • Document Revision: 4

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