bionic (1) sslscan.1.gz

NAME

       sslscan - Fast SSL/TLS scanner

SYNOPSIS

       sslscan [options] [host:port | host]

DESCRIPTION

       This manual page documents briefly the sslscan command

       sslscan queries SSL/TLS services, such as HTTPS, in order to determine the ciphers that are supported.

       SSLScan  is  designed  to  be  easy,  lean and fast. The output includes preferred ciphers of the SSL/TLS
       service, and text and XML output formats are supported. It is TLS SNI aware when used  with  a  supported
       version of OpenSSL.

       Output is colour coded to indicate security issues. Colours are as follows:

       Red Background  NULL cipher (no encryption)
       Red             Broken cipher (<= 40 bit), broken protocol (SSLv2 or SSLv3) or broken certificate signing
       algorithm (MD5)
       Yellow          Weak cipher (<= 56 bit or RC4) or weak certificate signing algorithm (SHA-1)
       Purple          Anonymous cipher (ADH or AECDH)

OPTIONS

       --help
              Show summary of options

       --version
              Show version of program

       --targets=<file>
              A file containing a list of hosts to check. Hosts can be supplied with ports (i.e. host:port). One
              target per line

       --ipv4
              Force IPv4 DNS resolution.  Default is to try IPv4, and if that fails then fall back to IPv6.

       --ipv6
              Force IPv6 DNS resolution.  Default is to try IPv4, and if that fails then fall back to IPv6.

       --show-certificate
              Display certificate information.

       --no-check-certificate
              Don't flag certificates signed with weak algorithms (MD5 and SHA-1) or short (<2048 bit) RSA keys

       --show-client-cas
              Show  a  list  of  CAs  that  the  server  allows  for  client  authentication.  Will be blank for
              IIS/Schannel servers.

       --show-ciphers
              Show a complete list of ciphers supported by sslscan

       --show-cipher-ids
              Print the hexadecimal cipher IDs

       --show-times
              Show the time taken for each handshake in milliseconds. Note that only a single  request  is  made
              with each cipher, and that the size of the ClientHello is not constant, so this should not be used
              for proper benchmarking or performance testing.

              You might want to also use --no-cipher-details to make the output a bit clearer.

       --ssl2
              Only check SSLv2 ciphers
              Note that this option may not be available if system OpenSSL does not support SSLv2. Either  build
              OpenSSL  statically  or rebuild your system OpenSSL with SSLv2 support. See the readme for further
              details.

       --ssl3
              Only check SSLv3 ciphers
              Note that this option may not be available if system OpenSSL does not support SSLv3. Either  build
              OpenSSL  statically  or rebuild your system OpenSSL with SSLv3 support. See the readme for further
              details.

       --tls10
              Only check TLS 1.0 ciphers

       --tls11
              Only check TLS 1.1 ciphers

       --tls12
              Only check TLS 1.2 ciphers

       --tlsall
              Only check TLS ciphers (versions 1.0, 1.1 and 1.2)

       --ocsp
              Display OCSP status

       --pk=<file>
              A file containing the private key or a PKCS#12 file containing a private key/certificate pair  (as
              produced by MSIE and Netscape)

       --pkpass=<password>
              The password for the private key or PKCS#12 file

       --certs=<file>
              A file containing PEM/ASN1 formatted client certificates

       --no-ciphersuites
              Do not scan for supported ciphersuites.

       --no-renegotiation
              Do not check for secure TLS renegotiation

       --no-compression
              Do not check for TLS compression (CRIME)

       --no-heartbleed
              Do not check for OpenSSL Heartbleed (CVE-2014-0160)

       --starttls-ftp
              STARTTLS setup for FTP

       --starttls-irc
              STARTTLS setup for IRC

       --starttls-imap
              STARTTLS setup for IMAP

       --starttls-pop3
              STARTTLS setup for POP3

       --starttls-smtp
              STARTTLS setup for SMTP
              Note that some servers hang when we try to use SSLv3 ciphers over STARTTLS. If you scan hangs, try
              using the --tlsall option.

       --starttls-psql
              STARTTLS setup for PostgreSQL

       --starttls-xmpp
              STARTTLS setup for XMPP

       --xmpp-server
              Perform a server-to-server XMPP connection. Try this if --starttls-xmpp is failing.

       --rdp
              Send RDP preamble before starting scan.

       --http
              Makes a HTTP request after a successful connection and returns the server response code

       --no-cipher-details
              Hide NIST EC curve name and EDH/RSA key length. Requires  OpenSSL  >=  1.0.2  (so  if  you  distro
              doesn't ship this, you'll need to statically build sslscan).

       --bugs
              Enables workarounds for SSL bugs

       --timeout=<sec>
              Set  socket  timeout.  Useful  for  hosts  that  fail to respond to ciphers they don't understand.
              Default is 3s.

       --sleep=<msec>
              Pause between connections. Useful on STARTTLS SMTP services, or anything  else  that's  performing
              rate limiting. Default is disabled.

       --xml=<file>
              Output results to an XML file

       --no-colour
              Disable coloured output.

EXAMPLES

       Scan a local HTTPS server
              sslscan localhost
              sslscan 127.0.0.1
              sslscan 127.0.0.1:443
              sslscan [::1]
              sslscan [::1]:443

AUTHOR

       sslscan was originally written by Ian Ventura-Whiting <fizz@titania.co.uk>.
       sslscan was extended by Jacob Appelbaum <jacob@appelbaum.net>.
       sslscan was extended by rbsec <robin@rbsec.net>.
       This manual page was originally written by Marvin Stark <marv@der-marv.de>.

                                                December 30, 2013                                     SSLSCAN(1)