nessus-tool/nessus-tool.patch

Mon, 20 Apr 2009 19:22:00 +0200

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Mon, 20 Apr 2009 19:22:00 +0200
changeset 178
0ba300bdf30a
permissions
-rw-r--r--

Change unfortunate but partly useful overreaching security tradeoff.
The principle of allocating each running process an individual system
user and group can have security benefits, however maintining a plethora
of users, groups, processes, file modes, file permissions, and even
nonportable file ACLs on a host serving from a hundred processes has
some security disadvantages. This tradeoff is even worse for systems
like OpenPKG which benefit from administration transparency through the
use of minimal system intrusion and only three usage privilege levels.

     1 Index: nessus-core/doc/nessusd.8.in
     2 --- nessus-core/doc/nessusd.8.in.orig	2004-10-19 17:21:05 +0200
     3 +++ nessus-core/doc/nessusd.8.in	2005-03-23 11:59:54 +0100
     4 @@ -183,7 +183,7 @@
     5  .SH USERS MANAGEMENT
     7  The utility nessus-adduser(8) creates new nessusd users. Each nessusd user
     8 -is attributed a "home", in @NESSUS_STATEDIR@/users/<username>. This home contains the following directories :
     9 +is attributed a "home", in @NESSUSD_STATEDIR@/users/<username>. This home contains the following directories :
    10  .IP auth/
    11  This directory contains the authentification information for this user. It might contain the file 'dname' if the user is authenticating using a certificate, or 'hash' (or 'passwd') if the user is authenticating using a password. The file 'hash' contains a MD5 hash of the user password, as well as a random seed. The file 'password' should contain the password in clear text.
    13 @@ -206,7 +206,7 @@
    16  When a user attempts to log in, nessusd first checks that the directory
    17 -@NESSUS_STATEDIR@/users/<username> exists, then hashes the password sent by the user with the random salt found in <username>/auth/hash, and compares it with the password hash stored in the same file. If the users authenticates using a certificate, then nessusd checks that the certificate has been signed by a recognized authority, and makes sure that the dname of the certificate shown by the user is the same as the one in <username>/dname.
    18 +@NESSUSD_STATEDIR@/users/<username> exists, then hashes the password sent by the user with the random salt found in <username>/auth/hash, and compares it with the password hash stored in the same file. If the users authenticates using a certificate, then nessusd checks that the certificate has been signed by a recognized authority, and makes sure that the dname of the certificate shown by the user is the same as the one in <username>/dname.
    21  To remove a given user, use the command nessus-rmuser(8).
    22 Index: nessus-core/nessus-mkcert.in
    23 --- nessus-core/nessus-mkcert.in.orig	2004-12-10 20:40:22 +0100
    24 +++ nessus-core/nessus-mkcert.in	2005-03-23 12:00:24 +0100
    25 @@ -407,31 +407,12 @@
    27  chmod a+r $CACERT $SRVCERT #cln $CLNCERT
    29 -
    30 -CF=@sysconfdir@/nessus/nessusd.conf
    31 -egrep -v '^ *(pem_password|cert_file|key_file|ca_file|force_pubkey_auth) *=' "$CF" > "$CF.tmp"
    32 -echo "#
    33 -# Added by nessus-mkcert
    34 -#
    35 -cert_file=$SRVCERT
    36 -key_file=$SRVKEY
    37 -ca_file=$CACERT
    38 -# If you decide to protect your private key with a password, 
    39 -# uncomment and change next line
    40 -# pem_password=password
    41 -# If you want to force the use of a client certificate, uncomment next line
    42 -# force_pubkey_auth = yes" >> "$CF.tmp"
    43 -
    44 -
    45 -
    46 -
    47  test -z "$QUIET" && header
    49  if [ -s "$CACERT" -a -s "$CAKEY" -a -s "$SRVCERT" -a -s "$SRVKEY" ];
    50   then
    51   test -z "$QUIET" && echo "Congratulations. Your server certificate was properly created."
    53 - mv -f "$CF.tmp" "$CF"
    54   test -z "$QUIET" && { 
    55   echo
    56   echo "$CF updated

mercurial