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2828. [security] Cached CNAME or DNAME RR could be returned to clients

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without DNSSEC validation. [RT #20737]

9.4-ESV, 9.5.3, 9.6.2, 9.7.0, 9.8.0(?)
This commit is contained in:
Tatuya JINMEI 神明達哉
2009-12-30 08:02:23 +00:00
parent 0f348b269b
commit d8680445d6
15 changed files with 283 additions and 70 deletions
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128
bin/tests/system/pending/tests.sh
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@@ -14,22 +14,50 @@
# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
# $Id: tests.sh,v 1.3 2009/11/18 23:48:06 tbox Exp $
# $Id: tests.sh,v 1.4 2009/12/30 08:02:22 jinmei Exp $
SYSTEMTESTTOP=..
. $SYSTEMTESTTOP/conf.sh
# replace_data dname RR old_data new_data
replace_data()
{
if [ $# -ne 4 ]; then
echo I:unexpected input for replace_data
return 1
fi
_dname=$1
_rr=$2
_olddata=$3
_newdata=$4
_ret=0
$NSUPDATE -d <<END>> nsupdate.out.test 2>&1 || _ret=1
server 10.53.0.2 5300
update delete ${_dname} 30 ${_rr} ${_olddata}
update add ${_dname} 30 ${_rr} ${_newdata}
send
END
if [ $_ret != 0 ]; then
echo I:failed to update the test data
return 1
fi
return 0
}
status=0
n=0
rm -f dig.out.*
DIGOPTS="+short +tcp +cd -p 5300"
DIGOPTS="+short +tcp -p 5300"
DIGOPTS_CD="$DIGOPTS +cd"
echo I:Priming cache.
ret=0
expect="10 mail.example."
ans=`$DIG $DIGOPTS @10.53.0.4 hostile MX` || ret=1
ans=`$DIG $DIGOPTS_CD @10.53.0.4 hostile MX` || ret=1
test "$ans" = "$expect" || ret=1
test $ret = 0 || echo I:failed, got "'""$ans""'", expected "'""$expect""'"
status=`expr $status + $ret`
@@ -37,7 +65,95 @@ status=`expr $status + $ret`
echo I:Checking that bogus additional is not returned with +CD.
ret=0
expect="10.0.0.2"
ans=`$DIG $DIGOPTS @10.53.0.4 mail.example A` || ret=1
ans=`$DIG $DIGOPTS_CD @10.53.0.4 mail.example A` || ret=1
test "$ans" = "$expect" || ret=1
test $ret = 0 || echo I:failed, got "'""$ans""'", expected "'""$expect""'"
status=`expr $status + $ret`
#
# Prime cache with pending additional records. These should not be promoted
# to answer.
#
echo "I:Priming cache (pending additional A and AAAA)"
ret=0
expect="10 mail.example.com."
ans=`$DIG $DIGOPTS @10.53.0.4 example.com MX` || ret=1
test "$ans" = "$expect" || ret=1
test $ret = 0 || echo I:failed, got "'""$ans""'", expected "'""$expect""'"
status=`expr $status + $ret`
echo "I:Replacing pending A"
ret=0
replace_data mail.example.com. A 192.0.2.2 192.0.2.3 || ret=1
status=`expr $status + $ret`
echo "I:Replacing pending AAAA"
ret=0
replace_data mail.example.com. AAAA 2001:db8::2 2001:db8::3 || ret=1
status=`expr $status + $ret`
echo "I:Checking updated data to be returned (without CD)"
ret=0
expect="192.0.2.3"
ans=`$DIG $DIGOPTS @10.53.0.4 mail.example.com A` || ret=1
test "$ans" = "$expect" || ret=1
test $ret = 0 || echo I:failed, got "'""$ans""'", expected "'""$expect""'"
status=`expr $status + $ret`
echo "I:Checking updated data to be returned (with CD)"
ret=0
expect="2001:db8::3"
ans=`$DIG $DIGOPTS_CD @10.53.0.4 mail.example.com AAAA` || ret=1
test "$ans" = "$expect" || ret=1
test $ret = 0 || echo I:failed, got "'""$ans""'", expected "'""$expect""'"
status=`expr $status + $ret`
#
# Prime cache with a pending answer record. It can be returned (without
# validation) with +CD.
#
echo "I:Priming cache (pending answer)"
ret=0
expect="192.0.2.2"
ans=`$DIG $DIGOPTS_CD @10.53.0.4 pending-ok.example.com A` || ret=1
test "$ans" = "$expect" || ret=1
test $ret = 0 || echo I:failed, got "'""$ans""'", expected "'""$expect""'"
status=`expr $status + $ret`
echo I:Replacing pending data
ret=0
replace_data pending-ok.example.com. A 192.0.2.2 192.0.2.3 || ret=1
status=`expr $status + $ret`
echo I:Confirming cached pending data to be returned with CD
ret=0
expect="192.0.2.2"
ans=`$DIG $DIGOPTS_CD @10.53.0.4 pending-ok.example.com A` || ret=1
test "$ans" = "$expect" || ret=1
test $ret = 0 || echo I:failed, got "'""$ans""'", expected "'""$expect""'"
status=`expr $status + $ret`
#
# Prime cache with a pending answer record. It should not be returned
# to no-DNSSEC clients.
#
echo "I:Priming cache (pending answer)"
ret=0
expect="192.0.2.102"
ans=`$DIG $DIGOPTS_CD @10.53.0.4 pending-ng.example.com A` || ret=1
test "$ans" = "$expect" || ret=1
test $ret = 0 || echo I:failed, got "'""$ans""'", expected "'""$expect""'"
status=`expr $status + $ret`
echo I:Replacing pending data
ret=0
replace_data pending-ng.example.com. A 192.0.2.102 192.0.2.103 || ret=1
status=`expr $status + $ret`
echo I:Confirming updated data returned, not the cached one, without CD
ret=0
expect="192.0.2.103"
ans=`$DIG $DIGOPTS @10.53.0.4 pending-ng.example.com A` || ret=1
test "$ans" = "$expect" || ret=1
test $ret = 0 || echo I:failed, got "'""$ans""'", expected "'""$expect""'"
status=`expr $status + $ret`