Bug 83685
| Summary: | uml_net executable allows users to do bad things | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | jonny robertson <jonny> |
| Component: | kernel-utils | Assignee: | Arjan van de Ven <arjanv> |
| Status: | CLOSED ERRATA | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 8.0 | CC: | jonny, mark |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | i686 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2003-02-07 18:18:31 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
An errata has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2003-056.html |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux 2.2.16-22smp i686; en-US; m18) M$-Free/Gecko/20010110 Netscape6/6.5 Description of problem: The uml_net binary that installs as part of the kernel-utils package in redhat 8 is setuid root. It can be crashed with a negative version number (doesn't look exploitable to me), and can be used by local (unpriveleged) users to up/down certain interfaces, add and remove arp entries and routes, and put interfaces in and out of promiscuous mode. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. Check eth0 is not in promisc mode 2. As a local user try 'uml_net 4 ethertap eth0 crap promisc' 3. Re-check step 1 Actual Results: IF goes into promisc mode Expected Results: Permission denied? Additional info: