Bug 1976
Summary: | /usr/bin/screen gives backdoor to /dev | ||
---|---|---|---|
Product: | [Retired] Red Hat Raw Hide | Reporter: | Jay Freeman <saurik> |
Component: | screen | Assignee: | Bill Nottingham <notting> |
Status: | CLOSED CURRENTRELEASE | QA Contact: | |
Severity: | medium | Docs Contact: | |
Priority: | high | ||
Version: | 1.0 | CC: | rvokal |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | i386 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 1999-04-26 21:28:25 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: |
Description
Jay Freeman
1999-04-04 07:39:29 UTC
screen is no longer setuid root. Ok, finally ran across a slight problem with this. screen requires different permissions of /tmp/screens when it runs at different user levels. When running as root it requires 755, and as a user it requires 777. (Most likely because when running at root it assumes it is only running as root, and is setuid'd, so it decides to close a "security hazard" by forcing you to make /tmp/screens 755 in that case). screen could be modified to "fix" this, or root could simply be banned from using screen. fixed in screen-3.7.6-7. (/tmp/screens is 0777 in all cases) |