home *** CD-ROM | disk | FTP | other *** search
- From: df@sei.cmu.edu (Dan Farmer)
- Newsgroups: alt.sources
- Subject: alpha perl-cops, part 0
- Message-ID: <25549@as0c.sei.cmu.edu>
- Date: 17 May 91 04:45:11 GMT
-
- (BTW, The source code for all of this is also available via anon-ftp, at
- cert.sei.cmu.edu, in ~ftp/pub/cops/perl.alpha.)
-
- ====================================
- Miscellaneous notes
- ====================================
-
- Hello -- this is what everyone has been waiting for, the alpha (!!!)
- release of perl-cops, or p-cops. This should be functionally equivalent
- to version 1.02 of the normal, or shell/C version of cops, with everything
- rewritten in perl, with the exception of the CRC checking stuff (sorry,
- no one had the guts (insanity) to do it :-)). It still calls a couple
- of Un*x programs to do some dirty work -- diff, find, and some other
- things, but should require nothing other than a working version of perl,
- version xyz (I haven't tried it with earlier versions; it uses "require",
- tho, which shouldn't stop you if you are determined; I don't think it
- uses anything else special) and a working Un*x (I'll pass this opportunity
- to make some snide remarks about what Un*x's actually work, here...)
- It is completely under tested, under documented, and probably has it's
- share of bugs. I'm pretty sure it works on Tom Christiansen's and my
- machine (actually, it has some problems on my decstation, but works fine
- on the sparc next to me), but that's about all I'll vouch for right now.
- Send bugs, problems, comments, and flames to me -- df@cert.sei.cmu.edu (If
- you hurry, we'll get a beta release out in a short while. What a deal!)
-
- As a bonus, there are a couple of new features to this, which may or
- may not show up in the normal version. First, there is a config file
- ("cops.cf") that should hold all the little stupid variable things. This
- makes it a lot easier to run this sucker on multiple host types; you can
- just say "cops -c config.sun4" or whatever, and it sucks up the info for
- that machine type. I'll put a separate section on how to use this little
- gem down below. Second, now when you check for writable files inside
- things like /etc/rc and crontab and such, you can specify the search to
- be recursive; so if you have a line like this in /etc/rc:
-
- /usr/bin/foo > /dev/console
-
- It will examine "/usr/bin/foo" for programs inside of it -- and it will
- keep going until it has exhausted all possibilities. So you can get warning
- messages like:
-
- Warning! File /foo/bar (inside /usr/local/X11R4/bin/X inside /usr/local/X11R4
- /bin/xdm inside /etc/rc.local) is _World_ writable!
-
- Fun stuff. No one can hide, now. This will probably *not* show up in
- the normal cops package, 'cause the string lengths this generates can easily
- go beyond what little the shell can comprehend.
-
- Finally, it includes an even better version of Kuang. Steve is still
- working on yet another bigger and better version.
-
- ====================================
- End notes --
- ====================================
-
- To get all this running, you might find it helpful to read the README
- file. A word to the wise, that's all...
-
- When a stable version of this is ready, when I get all of my other changes
- done to the normal cops, and finally when I get the new changes propagated
- back to the perl cops, I'll post the final 1.03 version, which should have
- equivalent shell and perl code. This will be the last time for that, methinks.
- I've got some plans for doing some networking stuff, using cops to figure
- out what goes on in the mind(s) of the network, and it's a bit too difficult
- (actually, it takes too long!) to write everything in C and shell (BTW,
- anyone who is into hacking security network stuff and understands a bit of
- kuang-eese can contact me, if you really want to do some further serious
- work.)
-
- Tremendous thanks go to Tom Christiansen, who almost single-handedly did
- the port to perl (well, he probably did 50% of the code, and bashed on the
- entire version to make it work right), and the rest of the perl crew (in
- no particular order); Steve Romig, Jeff Kellem, Mitch Wright, Matthew
- Farwell, Martin Foord, David Lawrence, Vik Lall, Brian Utterback, Terry
- McGonigal, and Chris (ckd@cs.bu.edu).
-
- Enjoy!
- -- dan
-