8343733562
CVE-2016-2400 kadmind(8) was not checking for 'add' permission to aliases added via kadm5_modify_principal(). This is a security vulnerability. The impact of this vulnerability is mostly minor because most sites that use kadmind(8) generally grant roughly the same level of permissions to all administrators. However, the impact will be higher for sites that grant modify privileges to large numbers of less-privileged users. From what we know of existing deployments of Heimdal, it seems very likely that the impact of this vulnerability will be minor for most sites.
364 lines
10 KiB
Bash
364 lines
10 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan
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# (Royal Institute of Technology, Stockholm, Sweden).
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the Institute nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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top_builddir="@top_builddir@"
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env_setup="@env_setup@"
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objdir="@objdir@"
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srcdir="@srcdir@"
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. ${env_setup}
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# If there is no useful db support compile in, disable test
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${have_db} || exit 77
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R=TEST.H5L.SE
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R2=TEST2.H5L.SE
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port=@port@
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admport=@admport@
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cache="FILE:${objdir}/cache.krb5"
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kadmin="${kadmin} -r $R"
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kdc="${kdc} --addresses=localhost -P $port"
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kadmind="${kadmind} -p $admport"
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server=host/datan.test.h5l.se
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kinit="${kinit} -c $cache ${afs_no_afslog}"
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kgetcred="${kgetcred} -c $cache"
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kdestroy="${kdestroy} -c $cache ${afs_no_unlog}"
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KRB5_CONFIG="${objdir}/krb5.conf"
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export KRB5_CONFIG
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rm -f ${keytabfile}
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rm -f current-db*
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rm -f out-*
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rm -f mkey.file*
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rm -f messages.log
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> messages.log
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echo Creating database
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${kadmin} -l \
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init \
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--realm-max-ticket-life=1day \
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--realm-max-renewable-life=1month \
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${R} || exit 1
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${kadmin} -l add -p foo --use-defaults foo/admin@${R} || exit 1
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${kadmin} -l add -p foo --use-defaults bar@${R} || exit 1
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${kadmin} -l add -p foo --use-defaults baz@${R} || exit 1
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${kadmin} -l add -p foo --use-defaults bez@${R} || exit 1
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${kadmin} -l add -p foo --use-defaults fez@${R} || exit 1
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${kadmin} -l add -p foo --use-defaults hasalias@${R} || exit 1
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${kadmin} -l add -p foo --use-defaults pkinit@${R} || exit 1
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${kadmin} -l modify --pkinit-acl="CN=baz,DC=test,DC=h5l,DC=se" pkinit@${R} || exit 1
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echo foo > ${objdir}/foopassword
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echo Starting kdc ; > messages.log
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${kdc} &
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kdcpid=$!
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sh ${wait_kdc}
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if [ "$?" != 0 ] ; then
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kill -9 ${kdcpid}
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kill -9 ${kadmpid}
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exit 1
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fi
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trap "kill -9 ${kdcpid} ${kadmpid}" EXIT
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#----------------------------------
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echo "kinit (no admin); test mod --alias authorization"
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${kinit} --password-file=${objdir}/foopassword \
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-S kadmin/admin@${R} hasalias@${R} || exit 1
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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# Check that one non-permitted alias -> failure
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env KRB5CCNAME=${cache} \
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${kadmin} -p hasalias@${R} modify --alias=goodalias1@${R} --alias=badalias@${R} hasalias@${R} &&
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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wait $kadmpid || { echo "kadmind failed $?"; cat messages.log ; exit 1; }
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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# Check that all permitted aliases -> success
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env KRB5CCNAME=${cache} \
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${kadmin} -p hasalias@${R} modify --alias=goodalias1@${R} --alias=goodalias2@${R} hasalias@${R} ||
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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wait $kadmpid || { echo "kadmind failed $?"; cat messages.log ; exit 1; }
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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# Check that we can drop aliases
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env KRB5CCNAME=${cache} \
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${kadmin} -p hasalias@${R} modify --alias=goodalias3@${R} hasalias@${R} ||
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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wait $kadmpid || { echo "kadmind failed $?"; cat messages.log ; exit 1; }
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${kadmin} -l get hasalias@${R} | grep Aliases: > kadmin.tmp
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read junk aliases < kadmin.tmp
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rm kadmin.tmp
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[ "$aliases" != "goodalias3@${R}" ] && { echo "kadmind failed $?"; cat messages.log ; exit 1; }
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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env KRB5CCNAME=${cache} \
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${kadmin} -p hasalias@${R} modify --alias=goodalias1@${R} --alias=goodalias2@${R} --alias=goodalias3@${R} hasalias@${R} ||
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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wait $kadmpid || { echo "kadmind failed $?"; cat messages.log ; exit 1; }
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${kadmin} -l get hasalias@${R} | grep Aliases: > kadmin.tmp
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read junk aliases < kadmin.tmp
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rm kadmin.tmp
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[ "$aliases" != "goodalias1@${R} goodalias2@${R} goodalias3@${R}" ] && { echo "FOO failed $?"; cat messages.log ; exit 1; }
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kinit (no admin)"
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${kinit} --password-file=${objdir}/foopassword \
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-S kadmin/admin@${R} bar@${R} || exit 1
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echo "kadmin"
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env KRB5CCNAME=${cache} \
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${kadmin} -p bar@${R} add -p foo --use-defaults kaka2@${R} ||
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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${kadmin} -l get kaka2@${R} > /dev/null ||
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kinit (no admin)"
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${kinit} --password-file=${objdir}/foopassword \
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-S kadmin/admin@${R} baz@${R} || exit 1
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echo "kadmin globacl"
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env KRB5CCNAME=${cache} \
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${kadmin} -p baz@${R} get bar@${R} > /dev/null ||
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kinit (no admin)"
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${kinit} --password-file=${objdir}/foopassword \
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-S kadmin/admin@${R} baz@${R} || exit 1
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echo "kadmin globacl, negative"
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env KRB5CCNAME=${cache} \
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${kadmin} -p baz@${R} passwd -p foo bar@${R} > /dev/null 2>/dev/null &&
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{ echo "kadmin succesded $?"; cat messages.log ; exit 1; }
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kinit (no admin)"
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${kinit} --password-file=${objdir}/foopassword \
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-S kadmin/admin@${R} baz@${R} || exit 1
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echo "kadmin globacl"
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env KRB5CCNAME=${cache} \
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${kadmin} -p baz@${R} get bar@${R} > /dev/null ||
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kinit (no admin)"
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${kinit} --password-file=${objdir}/foopassword \
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-S kadmin/admin@${R} bez@${R} || exit 1
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echo "kadmin globacl, negative"
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env KRB5CCNAME=${cache} \
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${kadmin} -p bez@${R} passwd -p foo bar@${R} > /dev/null 2>/dev/null &&
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{ echo "kadmin succesded $?"; cat messages.log ; exit 1; }
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kinit (no admin)"
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${kinit} --password-file=${objdir}/foopassword \
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-S kadmin/admin@${R} fez@${R} || exit 1
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echo "kadmin globacl"
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env KRB5CCNAME=${cache} \
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${kadmin} -p fez@${R} get bar@${R} > /dev/null ||
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kinit (no admin)"
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${kinit} --password-file=${objdir}/foopassword \
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-S kadmin/admin@${R} fez@${R} || exit 1
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echo "kadmin globacl, negative"
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env KRB5CCNAME=${cache} \
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${kadmin} -p fez@${R} passwd -p foo bar@${R} > /dev/null 2>/dev/null &&
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{ echo "kadmin succesded $?"; cat messages.log ; exit 1; }
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kinit (admin)"
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${kinit} --password-file=${objdir}/foopassword \
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-S kadmin/admin@${R} foo/admin@${R} || exit 1
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echo "kadmin"
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env KRB5CCNAME=${cache} \
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${kadmin} -p foo/admin@${R} add -p foo --use-defaults kaka@${R} ||
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kadmin get doesnotexists"
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env KRB5CCNAME=${cache} \
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${kadmin} -p foo/admin@${R} get -s doesnotexists@${R} \
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> /dev/null 2>kadmin.tmp && \
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{ echo "kadmin passed"; cat messages.log ; exit 1; }
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# evil hack to support libtool
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sed 's/lt-kadmin:/kadmin:/' < kadmin.tmp > kadmin2.tmp
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mv kadmin2.tmp kadmin.tmp
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# If client tried IPv6, but service only listened on IPv4
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grep -v ': connect' kadmin.tmp > kadmin2.tmp
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mv kadmin2.tmp kadmin.tmp
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cmp kadmin.tmp ${srcdir}/donotexists.txt || \
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{ echo "wrong response"; exit 1;}
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kadmin get pkinit-acl"
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env KRB5CCNAME=${cache} \
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${kadmin} -p foo/admin@${R} get -o pkinit-acl pkinit@${R} \
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> /dev/null || \
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kadmin get -o principal"
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env KRB5CCNAME=${cache} \
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${kadmin} -p foo/admin@${R} get -o principal bar@${R} \
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> kadmin.tmp 2>&1 || \
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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if test "`cat kadmin.tmp`" != "Principal: bar@TEST.H5L.SE" ; then
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cat kadmin.tmp ; cat messages.log ; exit 1 ;
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fi
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kadmin get -o kvno"
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env KRB5CCNAME=${cache} \
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${kadmin} -p foo/admin@${R} get -o kvno bar@${R} \
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> kadmin.tmp 2>&1 || \
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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if test "`cat kadmin.tmp`" != "Kvno: 1" ; then
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cat kadmin.tmp ; cat messages.log ; exit 1 ;
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fi
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kadmin get -o princ_expire_time"
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env KRB5CCNAME=${cache} \
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${kadmin} -p foo/admin@${R} get -o princ_expire_time bar@${R} \
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> kadmin.tmp 2>&1 || \
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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if test "`cat kadmin.tmp`" != "Principal expires: never" ; then
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cat kadmin.tmp ; cat messages.log ; exit 1 ;
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fi
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#----------------------------------
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${kadmind} -d &
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kadmpid=$!
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sleep 1
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echo "kadmin get -s -o attributes"
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env KRB5CCNAME=${cache} \
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${kadmin} -p foo/admin@${R} get -s -o attributes bar@${R} \
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> kadmin.tmp 2>&1 || \
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{ echo "kadmin failed $?"; cat messages.log ; exit 1; }
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if test "`cat kadmin.tmp`" != "Attributes" ; then
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cat kadmin.tmp ; cat messages.log ; exit 1 ;
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fi
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#----------------------------------
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echo "killing kdc (${kdcpid} ${kadmpid})"
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sh ${leaks_kill} kdc $kdcpid || exit 1
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trap "" EXIT
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exit $ec
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