Same as #2014, this is for 3.0 though.
OpenSSL shows certificate serial numbers >35 with a LF (0A). Testssl.sh
just output that which makes JSON invalid and displays the LF in the terminal
too.
This PR fixes that (#2010) by adding text filters so that the
serial number is not a multiline string.
Also this PR introduces a new function: a size check of the cert serial.
Below 8 bytes the CAB Forum's lower limit is hit which says the entropy
from a CSPRNG should be at least 64 bits. It is assumed that below 8 bytes
length this requirement isn't possible to meet (needs to be clarified with
Shannon, 8 bytes seems to low to me).
The high threshold is according to RFC 5280, Section-4.1.2.2 .
See also #2013.
The output has changed, so that on the terminal the serial has one line,
SHA1 and SHA256 each one line. The new json key is "cert_serialNumberLen".
Newer configuration files from openssl may include statements
which aren't compatible with our supplied old openssl version.
This commit adds an autodetection of such a file and uses a
openssl.cnf provided by this project then.
The openssl.cnf is from a Debian Jessie package.
See also #1987
A longer while back the section ~ "Testing standard ciphers" was
renamed to "Testing cipher categories". However the internal help
didn't reflect that.
This fixes that, including an addtion to the documentation.
Note: the help still lists "-s --std, --standard" as a cmd line
switch.
Similar to #1972.
* the ignore ~/.digrc option from dig is now parsed from the builtin help
* there was a potential DNS call which is now avoided
* the +noidnout check is now parsed from the builtin help
* the OPENSSL_CONF="" in check_resolver_bins() was moved a few lines higher to avoid other errors in the terminal
* redo check for noidnout by also using the help function of dig
See also #1949
get_server_certificate() includes a few calls to tls_sockets() in which the response will be TLS 1.3 and in which the response will be useless if it cannot be decrypted (since the goal is to obtain the server's certificate). So, these calls to tls_sockets() should specify "all+" rather than "all".
If the order of the cmdline is '-U --ids-friendly' then we need to make sure we catch --ids-friendly. Normally we do not,
see #1717. The following statement makes sure. In the do-while + case-esac loop the check for --ids-friendly will be
executed again, but it does not hurt
Newer dig versions have an option to ignore $HOME/.digrc, older
don't.
This commit adds a patch checking for the availability of
such an option and uses it by default.
If doesn't exist then still dig is used and can still lead to
wrong output. Unfortunately Debian-based distros are not very
good at this. Debian 10, Ubuntu 18.04 still use dig 9.11, whereas
Opensuse 15.2 has 9.16.
Debian 11 and Ubuntu 20.04 use that too.
Thus to be considered for the stable 3.0-branch: move
dig in the resolver functions a couple of lines down.
As mentioned in #1931 the port detection for nmap greppable files
leaves space for improvements.
Ths PR adds a pattern detection of ssl and https in the forth or fifth
parameter of an open port, so those ports will be added to a scan when
a nmap greppable output file is supplied as input to testssl.sh .
Also it does minor code adjustments to utils/gmap2testssl.sh .
Same as #1938, only for 3.0.
