Red Hat: RHSA-2000:053-01 critical: usermode command escalation
Summary
Summary
The usermode package allows unprivileged users logged in at the systemconsole to run the halt, poweroff, reboot, and shutdown commands withoutneeding to know the superuser's password. While being able to halt,poweroff, and reboot is a desirable thing, an unprivileged user can alsobring the system to single-user mode by running "shutdown now" with noadditional flags. This update removes the "shutdown" command from the listof commands unprivileged users can run.
Solution
For each RPM for your particular architecture, run:
rpm -Fvh [filename]
where filename is the name of the RPM.
5. Bug IDs fixed ( for more info):
13768 - Auth dialogs show "Picture of a key" text instead of graphic
13616 - Missing icon.
12433 - /usr/sbin/userhelper not stripped
11006 - kppp either doesn't display locally or remotely
9746 - Local user can go into single mode only with shutdown now...
6. RPMs required:
Red Hat Linux 6.0, 6.1, 6.2:
sparc:
alpha:
i386:
sources:
7. Verification:
MD5 sum Package Name
24f2766589d1a16ebcda912067173396 6.2/SRPMS/usermode-1.28-2.src.rpm
94423f4138477d9d47a055ed3c4b3648 6.2/alpha/usermode-1.28-2.alpha.rpm
b8f16bb02c4355a86183e268bd57ac74 6.2/i386/usermode-1.28-2.i386.rpm
e1c2b7626a905f64b03f48127e742259 6.2/sparc/usermode-1.28-2.sparc.rpm
These packages are GPG signed by Red Hat, Inc. for security. Our key
is available at:
You can verify each package with the following command:
rpm --checksig
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
rpm --checksig --nogpg
References
N/A Copyright(c) 2000 Red Hat, Inc. `
Package List
Topic
Topic
Updated usermode packages are now available for Red Hat Linux 6.0, 6.1, and
6.2.
Relevant Releases Architectures
Red Hat Linux 6.0 - i386, alpha, sparc
Red Hat Linux 6.1 - i386, alpha, sparc
Red Hat Linux 6.2 - i386, alpha, sparc
Red Hat Linux 6.2E - i386, alpha, sparc
Bugs Fixed