The information on 64 Block ciphers using SSLv2 in the SWEET32
paper is sparse. Maybe becuase SSLv2 is the bigger problem.
For completeness also SSLv2 ciphers were added to the SWEET32 check.
It fixes finally #613.
Also with --ssl-native when no ciphers or only a handlful of ciphers
are supplied by openssl there's a "Local problem" warning issued and
the test aborted as the results would make much sense otherwise.
A few peices of documenation of parameters and return conditions
for sslv2_sockets() and has_server_protocol() was added.
This fixes#1157.
* Move IDEA to the same category as 3DES
* Rename the category to 3DES_IDEA (JSON)
* Rename 128 Bit category to AVERAGE (JSON)
* Move 256 Bit CBC ciphers into this category too
* Remove category HIGH
Furthermore:
* Code readability improvements, especially in run_cipherlists()
* fix minor bugs (e.g. aNULL ciphers were used in higher categories when --ssl-native was supplied)
* rearrange order for sub_cipherlists()
* proper documentation for arguments of sub_cipherlists() in run_cipherlists()
* add "$cve" "$cwe" arguments to fileout in sub_cipherlists() -- (was passed before but not used)
* change debugging leftover filenames for sub_cipherlists to the JSON identifier
In case where the OpenSSL version used cannot successfully do openssl s_client
connects there are a few problems, see #1087.
This PR partly addresses them by
* changing the logic of HTTP header failure: we don't terminate anymore but
continue with a warning message
* we try to find out what the reason was: If it is a missing curve we signal
it back to the user
* we keep track in a global variable KNOWN_OSSL_PROB. It's not being used yet
on all connects as it has not been decided whether we do a connect despite
we know if there's a problem or rather not.
* Give hints to the user for resumption tests, secure renegotiation, CRIME and BREACH.
For the latter --assume-http needs to be supplied for any output.
Also: for finding the OPTIMAL_PROTO now (unless --ssl-native is being used)
sockets are the default which removes in cases where an openssl s_client
connect fails, the initial message 'doesn't seem to be a TLS/SSL enabled server'
and prompt 'Really proceed ? ("yes" to continue)'. For STARTTLS this needs
to be done as well.
Here a minor bug was fixed: when openssl s_client connect in determine_optimal_proto()
succeeded without a protocol supplied, OPTIMAL_PROTO wasn't set. A statement was
added but now it is only being used when --ssl-native was supplied.
Leftover for this workaround is to find out why the number of certificate retrieved is
zero in those cases, despite the fact that there's a valid 'host_certificate.pem' from
tls_socket() calls. Thus still run_server_defaults() stops after 'TLS clock skew'
as certificate_info() is not being called in run_server_defaults(). For now in
those cases 'Problem: Host certificate found but we can't continue with "server defaults"'
is being printed.
In general for the future it would be great if we could e.g. retrieve the header over
TLS sockets.
To finalize #1157 following was done
* move 3DES one line above
* put 128 bit CBC ciphers (ARIA, Camellie and AES) SEED and IDEA into 128Bit
* the remaining 256 bit ciphers NOT supporting AEAD Mac into high
Also 128 bit ciphers are getting a small complaint (LOW, yellow) if
available instead of red (for SEED and IDEA before)
To ease the (future) output rated_output() is included, but it's not being used
yet.
Also often I have docker hosts for testing. If I use them while the external
network is down, I still experience DNS timeouts. I added for dig
timeout values which proved to be reasonable in my tests with and
without network.
Also if an IPv4 or an IPv6 address was supplied testssl.sh doesn't
do (futile) DNS lookups anymore.
... to enable checks whether a curve has been detected by sockets
won't be detected and/or makes problems with remaining openssl
s_client + other calls
Related to #1087
This PR addresses the problem (#1037) that if a hostname resolves to multiple IP
addresses only the first one is being scanned as this IP isn't reachable and the
scan terminated here and didn't continue with the 2nd, 3rd etc.
Same applied to scans with --mx.
This based on the global MULTIPLE_CHECKS which is set to true whenever
such a scan is started.
One minor point: Also if the last IP isn't reachable the output will say
"proceeding with next:". I guess that should be clear looking at the (different outputs).
This PR also fixes a scan problem with a single cipher/pattern (-x/--single-cipher):
previously where only one IP was scanned.
Furthermore some redundant quotes were removed.
This commit addresses #934. It adds a line in the log/csv output
and a json object named "scanProblem" when either the function
fatal() is being called and it logs the reason of the fatal error.
.. based on https://github.com:/drwetter/openssl-1.0.2.bad
plus the patch fedora-dirk-ipv6.patch applied.
In addition to Peter Mosman's branch the brauch and as a result the binaries
contain following additional STARTTLS features: LMTP, NNTP, IRC .
See also #741, #559, #1093, #179
As noted in #1157 the logic of different cipher suites put to categories
needed an improvement.
This commit addresses it by moving first RC2 and RC4 cipher suites to
the low category.
More to follow.
This commit fixes#1163 which lead to the misleading output when
a TLS 1.3 enabled server had no preferences for the TLS 1.3 ciphers
but for anything below (like currently for testssl.NET).
The TLS 1.3 handshake in sockets plus the following openssl handshake
was moved to the top in run_server_preference() so that it can be better
determined whether TLS 1.3 is available. If this section's outcome is
TLS 1.3 is negotiated a single TLS 1.3 handshake with 5 ciphers only is
done forward and reverse. The resulting ciphers are later on compared
whether there's a cipher order for TLS 1.3.
Basically this section should be redone, so that all openssl handshakes
are replaced by sockets. As this would consume more time as it appears
reasonable at this point of time, this was not done yet. A starting point
for this would be tls13_list_fwd + reverse. After release of 3.0 90%
of the code will be replaced anyway.
DHE-RSA-SEED-SHA and SEED-SHA was added to the reverse and forward lists
as some old openssl versions + apache use it.
Also:
Googles ALPN_PROTO grpc-exp was added (to be reconsidered at some certain point)
Some redundant quotes in double square brackets were removed.
All "do_*" variables are now in quotes when tested w if or [[
The HTML manual is now post processed through tidy
which removes the problem of ">" not HTML encoded.
--color 0 is now explicitly mentioned to avoid escaped codes in the
output.
Minor changes wrt certificate stores
Reflect we're at 3.0rcX, 2.9.5 is past, 2.8 not supported
Removed features from 2.9.5. Added all(?-->David?) features implemented
in 2.9dev.
Mention docker image
Clarify when testssl.sh should be mentioned (license).
This is an update of the root certificate stores. Date from each store
is from yesterday.
Description update.
Also the Java certificate store was added. Previously Java was omitted
as it appeared not to be complete. I tested successfully this store.
Review: grammar, spelling. Errorneous and obsolete description.
Some items reordered.
Updated: to reflect the current capabilities.
Moreover: (Almost) complete the tuning variables section.
This addresses #1169: When using JSON as output format when mass testing
AND we have a non-fatal condition when e.g. openssl lacks support for
something it led to an invalid JSON as the warning was put into file w/o
a trailing comma.
The commit removes the warning to be put into the output. We still have the
message on screen + in HTML which is not as optimal as it could be.
Also I did some cleanups related to redundant double quotes I stumbled over while
fixing this.
As a kind of a pre-warning this commit allows the n-1 connection problem to
give feedback on the screen (that wasn't working before).
Also the message on the screen is now more clear and the manpage
gives better advice.
Related to #1172
.. after some discussion. As TLS 1.3 is not tested here
any RFC 7919 primes using this protocol will not show
up (they in in run_pfs() though). To avoid misunderstandings
" DH key detected with <= TLS 1.2" is now being printed.
This commit addresses #179 and implements NNTP via STARTTLS. I did
a few tests and it did work so far.
However the binary support needs to be done. I backported in my
fork of @PeterMosmans tree the section from OpenSSL 1.1.1 -- but
it didn't work, see https://github.com/openssl/openssl/issues/7722.
I just tried to patch it as I suggested and it worked then. My
patch is pushed soon after to https://github.com/drwetter/openssl-1.0.2.bad,
however I'll better wait for the official OPenSSL 1.1.1 patch.
This commit finalizes #1139. It displays the DH groups
in both run_logjam() and run_pfs() in a simlilar manner
(except the FFDHE groups).
A common small function pr_dh() was introduced which prints
out the dh group and in round brackets colored DH bits.
This commit finally fixes#547 and makes XMPP handshakes at least
as fast as the other STARTTLS handshakes.
It utilizes dd to read from the file descriptor. In all tests
I ran so far it didn't cause any problems. There's a potential
problem though that dd might block.
This PR fixes#924 and does some foundation for #547. It's a
somewhat preliminary push of code and further work for #547 is required.
XMPP is now similar programmed as other STARTTLS handshakes with the exception
that it is not line based but stream based. That is still the catch here and
needs to be addressed: STARTTLS protocols like IMAP + SMTP use
starttls_full_read() which reads lines until the line is completely received or
the timeout was encountered.
The new function ``starttls_io()`` however does a wait (fixed value: 1 second)
as there's no lf or terminator.
The XMPP STARTTLS handshakes are now the same as in OpenSSL.
There are redundant functions in this code which will be removed later.
Also at some places a hint for lmtp was missing which was added.
The cipher suites names in the RFCs stem (mostly) from IANA, see
https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4
This PR corrects that in places visible to the user. For backwards
compatibility the cmd line switches still work as before, but there's
a preference to IANA. The RFC naming is labeled as to be retired
in the future.
SSLabs API only added one newer version of Chrome (70) and one newer version
of Firefox (62).
Thus the wishlist gets longer (c15e0425dc).
Missing is Android 8 and 9, OpenSSL 1.1.1, Safari on OSX 11 and 12. Java 10
and 11.
Fix#1104
In addition to 7d36ba9a2e which
added new SSLv2 ciphers to the ciphers file this commit adds those
ciphers also to those functions where needed.
Also it does some housekeeping. [[ doesn't require strings on
the right hand side to be quoted, see bash hackers wiki.
PR #1114 brought #1139 a good step forward. This commit adds
a few tweaks to it:
* the groups in run_pfs() are now also italic, except FFDHE groups
* renaming FF groups to DH groups to provide consistency with the
remainder of testssl.sh
* JSON identifier was renamed from DHE_groups to DH_GROUPS
Open points:
* in run_logjam() there's no warning at all regarding e.g. dh512.badssl.com.
Reading the Logjam paper in section 3.5., first couple of paragraphs we
should warn at least against 512 bits here too.
* how do we treat/label 768 bit and 1024 bit in run_logjam() which comes from
unknown groups? Looks like the paper only was concerned about precompuation.
* In run_logjam() is the bit length not colored but in run_pfs() it is.
* Notation: when do we label FF groups / DH parameter ephemeral?
* Code in run_pfs() and run_logjam() can be merged more.
There are a couple of old SSLv2 ciphers which haben't been included in
etc/cipher-mapping.txt . This PR updates the file. Names were derived
from the (old) OpenSSL / SSLeay source code.
In addition TLS_NULL_WITH_NULL_NULL (>=SSLv3 cipher) was added.
ToDo: Review functions to be updated to use those ciphers.
Some SSLv2 ciphers were missing (see openssl/ssl/ssl2.h and
SSLeay (ssl.h + ssl_lib.c).
Also in this list security bit strength None were renamed to '0',
encryption None to Null.
.. otherwise we'll hit too soon the threshold: Logic: by specifying
a timeout a user indicates that there might be a problem.
Also fatal() now supports a hint which is printed in normal
text (to stderr)
Some Cyrus IMAD if configured with SSL_CTX_set_cipher_list(context, "!TLSv1")
and similar respond with a plaintext 'a002 NO Starttls negotiation failed"
when a not-supported protocol is detected, see #1082.
This PR fixes this by detecting (also) this downgrade. As a precaution
It still issues a warning as this is seems a special configuration.
Looking @ pending #1114 two improvements were done:
1) Keep the status of DH group detected (<name> or "Unknown DH group")
as well as the bit length
2) move the detection to a separate function get_common_prime()
There's still room for improvements when run_pfs() will take
over a part.
Also double code (my bad) from run_logjam() was move to a separate function.
As #1146 noted some installations miss hexdump. Better practice
is to check before what's needed albeit the error message when
a binary is missing does give the user a hint.
Currently the client simulation is based on the handshake data
from SSLlabs which is purely focussed on HTTP -- as SSLlabs does
HTTP only.
In #540 there was a PR addressing the fact that the data is not
what is claims to be -- the handshake of Android 7 seems to be
Chrome for Android and not Android itself.
This PR tries at least to modify the headline for client simulations.
This PR addresses the remaining TCP fragmentation by piping the line buffered
internal print through cat, see also #1130.
It extends 1b52834 which was the same doing for Linux and
OpenBSD.
This PR also consolidates the last remaining low level socket calls
in client_simulation_sockets() into socksend_clienthello().
An negative performance effect is barely measurable.
It also does a check whether the fd 5 is taken by a tty as
I see this while writing the commit message ;-). We might
want to make that line better instead of just echoing. :-)
* Put all low level socket related functions close to each other
* removed socksend2 as it was not used and outdated looking forward
* socksend_sslv2_clienthello() renamed to socksend_clienthello() as
it wasn't particular SSLv2 related
* removed the low level socket calls from socksend_tls_clienthello()
and called socksend_clienthello() instead
* renamed socksend_tls_clienthello() to prepare_tls_clienthello()
as it is not a low level function anymore
This commit adds LMTP to the STARTTLS protocols
supported. It requires an openssl version which
supports this which is either openssl 1.1.1
or a backported version 1.0.2 (binary is in
process).
A check is in place whetrher the binary supports
this.
Furthermore some framework additions were made for
further STARTTLS protocols like IRC and NNTP.
Instead of checking via uname for Linux this commit does a check
whether the outcome for an external printf is what is expected. This
makes it more compatible e.g. with OpenBSD which surprisingly works
similar like the GNU counterpart.
Also it checks all external printfs installed wther it's the
"right one" to use. Previously it stopped just at the first one
and if this was "wrong", bash's printf was used.
Dirk Wetter