Vulnerability Development mailing list archives
Re: Unix * weirdness
From: belanger () RISQ QC CA (Pierre Belanger)
Date: Sat, 1 Jan 2000 17:31:31 -0500
| It took me a minute. It's taking the file named -proc and parsing as | if it was a set of command line options. I guess this makes some | sense.. I believe the shell just takes all the files and makes them all | command-line parameters when you use *. | rm -R -- * will work.
From the man page :
NOTES A -- permits the user to mark explicitly the end of any com- mand line options, allowing rm to recognize file arguments that begin with a -. As an aid to BSD migration, rm will accept - as a synonym for --. This migration aid may disap- pear in a future release. If a -- and a - both appear on the same command line, the second will be interpreted as a file. | So, I wonder what other kinds of traps can be laid for the root | user or cron jobs, etc... For example, here's a line from my | S05RMTMPFILES in /etc/rc2.d dir, on a Solaris 2.6 machine. | (Which is where this behavior was noticed): | | /usr/bin/rm -rf /tmp/* | Sun should put /usr/bin/rm -rf -- /tmp/* The script will only rm if : # if /tmp or any of its subdirectories are mount points do not remove /tmp Usually, /tmp is a mount point since Solaris 2.5 (???) so the script shouldn't erase nothing unless you have an old operating system... I wonder what the script looks like on a old SunOS box. | So, if I can place an interestingly names file in /tmp | (and anyone can) can I get interesting things to happen | when the machine reboots. | I don't think so, well not with a few tests I did under Solaris 2.6. Perhaps other/older OS? Pierre B.
Current thread:
- Re: Unix * weirdness, (continued)
- Re: Unix * weirdness Blue Boar (Jan 01)
- Re: Unix * weirdness Warner Losh (Jan 01)
- Re: Unix * weirdness Bernie Cosell (Jan 01)
- Re: Unix * weirdness Blue Boar (Jan 01)
- iishack/tesoiis.c - What's wrong ? Ory Segal (Jan 03)
- Re: iishack/tesoiis.c - What's wrong ? Seth Georgion (Jan 03)
- Re: iishack/tesoiis.c - What's wrong ? The Underground Legendary Emperor (Jan 04)
- Re: Unix * weirdness Blue Boar (Jan 01)
- Re: Unix * weirdness Blue Boar (Jan 01)