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Re: AIX 4.3.3 has make sgid 0?
From: Darren Tucker <dtucker () zip com au>
Date: Tue, 23 Mar 2004 15:11:27 +1100

BoneMachine wrote:
I was browsing the SecurityFocus vulnerability database and found the following:
http://www.securityfocus.com/bid/9903
"Because the make utility is reported to run with setGID root privileges, a local attacker may potentially exploit this 
condition to gain access to the root group"

Is this true ? I cannot believe that IBM has an setGID root-bit on the make utillity. This goes against all security 
practices I've ever heard.
Are there people that have more info on this vulnerability or is this a hoax?

make is *not* setgid on my AIX 4.3.3 ML 11 box:

# echo `uname` `oslevel -r`
AIX 4330-11
# ls -l /usr/ccs/bin/make
-r-xr-xr-x   1 bin    bin    90362 Sep 26 2002  /usr/ccs/bin/make
# lslpp -L bos.adt.base
bos.adt.base   4.3.3.78    C    Base Application Development Toolkit

Out of curiosity, I pulled apart the bos.adt fileset from the 4.3.3 distribution media. In the bos.adt.base.inventory file, make is specified as mode 555 and is not setgid there either:

/usr/ccs/bin/make:
          owner = bin
          group = bin
          mode = 555

I guess it's possible that one of the filesets between 4.3.3.0 and 4.3.3.78 is different but I'm not about to find out...

--
Darren Tucker (dtucker at zip.com.au)
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4  37C9 C982 80C7 8FF4 FA69
    Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.

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