Urgent Help...Pseudo-Device provides a Backdoor Entry to root. Post: 302375715

10 More Discussions You Might Find Interesting

1. Solaris

pseudo: [ID 129642 kern.info] pseudo-device: vol0

Hi I have a system that gave me some messages on bootup that I was not used to seeing: pseudo: pseudo-device: vol0 genunix: vol0 is /pseudo/vol@0 these came with these: Feb 13 17:42:17 system1 eri: SUNW,eri0 : 100 Mbps full duplex link up Feb 13 17:42:21 system1sendmail: My unqualified...

2. BSD

Netbsd root device not found

Hello there. I installed NetBSD yesterday on an older system to try it out. Everytime I boot, I have to enter in the root device (disk) manually wd0 which then proceeds into asking to define the dump device: is the default then, the sbin/init My question is where am I supposed to...

3. Homework & Coursework Questions

The pseudo-device provides a �backdoor� for gaining root access for a particular user.

Problem statement. In this part of the assignment, delegates will create a pseudo-device and write a device driver for it. The pseudo-device provides a “backdoor” for gaining root access for a particular user. Instead of compiling the device driver into the kernel, delegate will create a module....

4. Emergency UNIX and Linux Support

Mapping between "Pseudo name" and "Logical device ID" in powerpath with SVM changed....

Dear All, I was having powerpath 5.2 on SUN server with SVM connected to CLARIION box.Please find the following output : root # powermt display dev=all Pseudo name=emcpower3a CLARiiON ID=CK200073400372 Logical device ID=60060160685D1E004DD97FB647BFDC11 state=alive; policy=CLAROpt;...

5. UNIX for Advanced & Expert Users

Gave up waiting for root device.

Yestoday, in order to analysis the core dump information which is a result of my bugged device driver, I configurate and make the kernel according to "Documentation/kdump/kdump.txt" in linux source code and today, I reboot the system with "crashkernel=64M@16M". The system cannot boot now and...

6. Cybersecurity

Linux Universal Packet/Ham Radio Backdoor - root!

Tails (LiveCD) is crap, and I'm being nice here. Bloated, contains HAMRADIO and PACKET RADIO modules which no one in their right mind would use on a distro aimed at Tor use, I don't even believe 1% of Linux users use them, yet they're generated right there in the directories. Google about ham radio...

7. Solaris

pseudo device?

sometimes I see this message in dmesg: what does it mean? thanks.

8. Red Hat

Rc.sysinit mounts root FS then why we have entry in fstab

Hello, In linux /etc/rc.d/rc.sysinit mounts root File System as RW during the booting phase. So why we have entry of it in /etc/fstab? Thanks, Nitin

9. AIX

Best practices for sugroups for root ? backdoor user access ?

greetings, just ran across a fun situation we had overlooked. We have a backdoor user, no special privileges, which we put on every server so that anyone in the shop can get in (passwd in vault) if they need to, even if they don't have a local account on that server. The point of course is to...

10. UNIX for Advanced & Expert Users

Big problem: shell entry in /etc/passwd corrupted for user root

did a big mistake, changing root entry of /etc/passwd to root:x:0:0:root:/root:/usr/bin/tmux split-window -v \; attach as expected, now I can't login as root anymore. sudo ed /etc/passwd etc. doesn't work. Any idea? Use code tags to increase readability and follow the rules.

LEARN ABOUT REDHAT

vboxbeep

vboxbeep(1)						    Linux System Administration 					       vboxbeep(1)

NAME

       vboxbeep - isdn voice box (beeper)

SYNOPSIS

       vboxbeep [OPTION] [OPTION] [...]

DESCRIPTION

       vboxbeep is a daemon, that watches several message directories. If new messages are found it will beep. Vboxbeep does not use vboxd, it can
       only watch local directories.

       Vboxbeep is also used to stop this annoying beep.

OPTIONS

       Without any options, vboxbeep will signal an already running vboxbeep to stop its beep. Only root can start it as daemon.

       -s, --sound HOURS
	      Hours to play beep signal. Use 24 hour format, like 0-23. Multiple hours can be given separated by commas, a "*" is used for always,
	      "-" for never.

       -m, --messagebox DIR
	      Message directory to scan. You can use this option several times.

       -p, --pause SECS
	      Time to wait between every check. Default is 5 seconds.

       -k, --kill
	      Kill a running vboxbeep. This option can only be used by root.

       -h, --help
	      Show summary of options.

       -v, --version
	      Show version of program.

NOTE

       vboxbeep  will  only work if it is installed suid root. This may be a security hole, so many distributions do not install it suid root, and
       thus it's useless. If you want to enable vboxbeep, please read the distribution-specific documentation how to do  that  (e.g.  with  debian
       gnu/linux read /usr/doc/isdnutils/README.debian).

AUTHOR

       This manual page was written by Andreas Jellinghaus <aj@dungeon.inka.de>, for Debian GNU/Linux and isdn4linux.

ISDN 4 Linux 3.1pre4						    2000/09/15							       vboxbeep(1)

10 More Discussions You Might Find Interesting

1. Solaris

pseudo: [ID 129642 kern.info] pseudo-device: vol0

Discussion started by: mndavies

2. BSD

Netbsd root device not found

Discussion started by: septima.pars

3. Homework & Coursework Questions

The pseudo-device provides a �backdoor� for gaining root access for a particular user.

Discussion started by: nyjilgeorge1

4. Emergency UNIX and Linux Support

Mapping between "Pseudo name" and "Logical device ID" in powerpath with SVM changed....

Discussion started by: Reboot