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Check that missing cookies are handled

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This commit is contained in:
Mark Andrews
2020-11-13 15:38:49 +11:00
parent 0e3b1f5a25
commit bd9155590e
9 changed files with 502 additions and 3 deletions
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206
bin/tests/system/cookie/tests.sh
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@@ -302,5 +302,211 @@ grep "status: NOERROR," dig.out.test$n > /dev/null || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=`expr $status + $ret`
n=`expr $n + 1`
echo_i "check that test server is correctly configured ($n)"
ret=0
pat="; COOKIE: ................................ (good)"
#UDP
$DIG $DIGOPTS @10.53.0.9 +notcp tld > dig.out.test$n.1
grep "status: NOERROR" dig.out.test$n.1 > /dev/null || ret=1
grep "$pat" dig.out.test$n.1 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.1 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.1 > /dev/null && ret=1
grep ";; TSIG PSEUDOSECTION:" dig.out.test$n.1 > /dev/null && ret=1
$DIG $DIGOPTS @10.53.0.9 +notcp tcponly.tld > dig.out.test$n.2
grep "status: NOERROR" dig.out.test$n.2 > /dev/null || ret=1
grep "; COOKIE:" dig.out.test$n.2 > /dev/null && ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.2 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.2 > /dev/null || ret=1
grep ";; TSIG PSEUDOSECTION:" dig.out.test$n.1 > /dev/null && ret=1
$DIG $DIGOPTS @10.53.0.9 +notcp nocookie.tld > dig.out.test$n.3
grep "status: NOERROR" dig.out.test$n.3 > /dev/null || ret=1
grep "; COOKIE:" dig.out.test$n.3 > /dev/null && ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.3 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.3 > /dev/null || ret=1
grep ";; TSIG PSEUDOSECTION:" dig.out.test$n.1 > /dev/null && ret=1
$DIG $DIGOPTS @10.53.0.9 +notcp withtsig.tld > dig.out.test$n.4
grep "status: NOERROR" dig.out.test$n.4 > /dev/null || ret=1
grep "; COOKIE:" dig.out.test$n.4 > /dev/null && ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.4 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.4 > /dev/null || ret=1
grep ";; TSIG PSEUDOSECTION:" dig.out.test$n.4 > /dev/null || ret=1
#TCP
$DIG $DIGOPTS @10.53.0.9 +tcp tld > dig.out.test$n.5
grep "status: NOERROR" dig.out.test$n.5 > /dev/null || ret=1
grep "$pat" dig.out.test$n.5 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.5 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.5 > /dev/null && ret=1
grep ";; TSIG PSEUDOSECTION:" dig.out.test$n.1 > /dev/null && ret=1
$DIG $DIGOPTS @10.53.0.9 +tcp tcponly.tld > dig.out.test$n.6
grep "status: NOERROR" dig.out.test$n.6 > /dev/null || ret=1
grep "$pat" dig.out.test$n.6 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.6 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.6 > /dev/null && ret=1
grep ";; TSIG PSEUDOSECTION:" dig.out.test$n.1 > /dev/null && ret=1
$DIG $DIGOPTS @10.53.0.9 +tcp nocookie.tld > dig.out.test$n.7
grep "status: NOERROR" dig.out.test$n.7 > /dev/null || ret=1
grep "; COOKIE:" dig.out.test$n.7 > /dev/null && ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.7 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.7 > /dev/null && ret=1
grep ";; TSIG PSEUDOSECTION:" dig.out.test$n.1 > /dev/null && ret=1
$DIG $DIGOPTS @10.53.0.9 +tcp withtsig.tld > dig.out.test$n.8
grep "status: NOERROR" dig.out.test$n.8 > /dev/null || ret=1
grep "$pat" dig.out.test$n.8 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.8 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.8 > /dev/null && ret=1
grep ";; TSIG PSEUDOSECTION:" dig.out.test$n.8 > /dev/null && ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=`expr $status + $ret`
n=`expr $n + 1`
echo_i "check that spoofed response is dropped when we have a server cookie ($n)"
ret=0
msg="missing expected cookie from"
pat='10\.53\.0\.9 .*\[cookie=................................\] \[ttl'
# prime EDNS COOKIE state
$DIG $DIGOPTS @10.53.0.1 tld > dig.out.test$n.1
grep "status: NOERROR" dig.out.test$n.1 > /dev/null || ret=1
rndc_dumpdb ns1
grep "$pat" ns1/named_dump.db.test$n > /dev/null || ret=1
# spoofed response contains 10.53.0.10
nextpart ns1/named.run >/dev/null
$DIG $DIGOPTS @10.53.0.1 tcponly.tld > dig.out.test$n.2
wait_for_log 5 "$msg" ns1/named.run || ret=1
grep "status: NOERROR" dig.out.test$n.2 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.2 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.2 > /dev/null && ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=`expr $status + $ret`
n=`expr $n + 1`
echo_i "check that gracefully handle server disabling DNS COOKIE we have a server cookie ($n)"
ret=0
msg="missing expected cookie from"
pat='10\.53\.0\.9 .*\[cookie=................................\] \[ttl'
# prime EDNS COOKIE state
$DIG $DIGOPTS @10.53.0.1 tld > dig.out.test$n.1
grep "status: NOERROR" dig.out.test$n.1 > /dev/null || ret=1
rndc_dumpdb ns1
grep "$pat" ns1/named_dump.db.test$n > /dev/null || ret=1
# check the disabled server response
nextpart ns1/named.run >/dev/null
$DIG $DIGOPTS @10.53.0.1 nocookie.tld > dig.out.test$n.2
wait_for_log 5 "$msg" ns1/named.run || ret=1
grep "status: NOERROR" dig.out.test$n.2 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.2 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.2 > /dev/null && ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=`expr $status + $ret`
n=`expr $n + 1`
echo_i "check that spoofed response with a TSIG is dropped when we have a server cookie ($n)"
ret=0
pat='10\.53\.0\.9 .*\[cookie=................................\] \[ttl'
# prime EDNS COOKIE state
$DIG $DIGOPTS @10.53.0.1 tld > dig.out.test$n.1
grep "status: NOERROR" dig.out.test$n.1 > /dev/null || ret=1
rndc_dumpdb ns1
grep "$pat" ns1/named_dump.db.test$n > /dev/null || ret=1
# spoofed response contains 10.53.0.10
nextpart ns1/named.run >/dev/null
$DIG $DIGOPTS @10.53.0.1 withtsig.tld > dig.out.test$n.2
grep "status: NOERROR" dig.out.test$n.2 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.2 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.2 > /dev/null && ret=1
nextpart ns1/named.run > named.run.test$n
count=$(grep -c ') [0-9][0-9]* NOERROR 0' named.run.test$n)
test $count -eq 1 || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=`expr $status + $ret`
if $PYTHON -c '
import dns.version, sys;
if dns.version.MAJOR > 1: sys.exit(0);
if dns.version.MAJOR == 1 and dns.version.MINOR >= 16: sys.exit(0);
sys.exit(1)'
then
n=`expr $n + 1`
echo_i "check that TSIG test server is correctly configured ($n)"
ret=0
pat="; COOKIE: ................................ (good)"
key=hmac-sha256:foo:aaaaaaaaaaaa
#UDP
$DIG $DIGOPTS @10.53.0.10 -y $key +notcp tsig. > dig.out.test$n.1
grep "status: NOERROR" dig.out.test$n.1 > /dev/null || ret=1
grep "$pat" dig.out.test$n.1 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.1 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.1 > /dev/null && ret=1
grep 'TSIG.*NOERROR' dig.out.test$n.1 > /dev/null || ret=1
$DIG $DIGOPTS @10.53.0.10 -y $key +notcp tcponly.tsig > dig.out.test$n.2
grep "status: NOERROR" dig.out.test$n.2 > /dev/null || ret=1
grep "; COOKIE:" dig.out.test$n.2 > /dev/null && ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.2 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.2 > /dev/null || ret=1
grep 'TSIG.*NOERROR' dig.out.test$n.1 > /dev/null || ret=1
$DIG $DIGOPTS @10.53.0.10 -y $key +notcp nocookie.tsig > dig.out.test$n.3
grep "status: NOERROR" dig.out.test$n.3 > /dev/null || ret=1
grep "; COOKIE:" dig.out.test$n.3 > /dev/null && ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.3 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.3 > /dev/null || ret=1
grep 'TSIG.*NOERROR' dig.out.test$n.1 > /dev/null || ret=1
#TCP
$DIG $DIGOPTS @10.53.0.10 -y $key +tcp tsig. > dig.out.test$n.5
grep "status: NOERROR" dig.out.test$n.5 > /dev/null || ret=1
grep "$pat" dig.out.test$n.5 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.5 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.5 > /dev/null && ret=1
grep 'TSIG.*NOERROR' dig.out.test$n.1 > /dev/null || ret=1
$DIG $DIGOPTS @10.53.0.10 -y $key +tcp tcponly.tsig > dig.out.test$n.6
grep "status: NOERROR" dig.out.test$n.6 > /dev/null || ret=1
grep "$pat" dig.out.test$n.6 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.6 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.6 > /dev/null && ret=1
grep 'TSIG.*NOERROR' dig.out.test$n.1 > /dev/null || ret=1
$DIG $DIGOPTS @10.53.0.10 -y $key +tcp nocookie.tsig > dig.out.test$n.7
grep "status: NOERROR" dig.out.test$n.7 > /dev/null || ret=1
grep "; COOKIE:" dig.out.test$n.7 > /dev/null && ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.7 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.7 > /dev/null && ret=1
grep 'TSIG.*NOERROR' dig.out.test$n.1 > /dev/null || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=`expr $status + $ret`
n=`expr $n + 1`
echo_i "check that missing COOKIE with a valid TSIG signed response does not trigger TCP fallback ($n)"
ret=0
pat='10\.53\.0\.10 .*\[cookie=................................\] \[ttl'
# prime EDNS COOKIE state
$DIG $DIGOPTS @10.53.0.1 tsig. > dig.out.test$n.1
grep "status: NOERROR" dig.out.test$n.1 > /dev/null || ret=1
rndc_dumpdb ns1
grep "$pat" ns1/named_dump.db.test$n > /dev/null || ret=1
# check the disabled server response
nextpart ns1/named.run >/dev/null
$DIG $DIGOPTS @10.53.0.1 nocookie.tsig > dig.out.test$n.2
grep "status: NOERROR" dig.out.test$n.2 > /dev/null || ret=1
grep 'A.10\.53\.0\.9' dig.out.test$n.2 > /dev/null || ret=1
grep 'A.10\.53\.0\.10' dig.out.test$n.2 > /dev/null || ret=1
nextpart ns1/named.run > named.run.test$n
count=$(grep -c ') [0-9][0-9]* NOERROR 0' named.run.test$n)
test $count -eq 2 || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=`expr $status + $ret`
fi
echo_i "exit status: $status"
[ $status -eq 0 ] || exit 1