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164 Web Application Penetration Testing Preferred Cipher Suite: None Accepted Cipher Suite(s): None Undefined - An unexpected error happened: None * SSLV3 Cipher Suites : Rejected Cipher Suite(s): Hidden Preferred Cipher Suite: RC4-SHA 128 bits HTTP 200 OK Accepted Cipher Suite(s): CAMELLIA256-SHA 256 bits HTTP 200 OK RC4-SHA 128 bits HTTP 200 OK CAMELLIA128-SHA 128 bits HTTP 200 OK Undefined - An unexpected error happened: None * TLSV1_1 Cipher Suites : Rejected Cipher Suite(s): Hidden Preferred Cipher Suite: None Accepted Cipher Suite(s): None Undefined - An unexpected error happened: ECDH-RSA-AES256-SHA socket.timeout - timed out ECDH-ECDSA-AES256-SHA socket.timeout - timed out * TLSV1_2 Cipher Suites : Rejected Cipher Suite(s): Hidden Preferred Cipher Suite: None Accepted Cipher Suite(s): None Undefined - An unexpected error happened: ECDH-RSA-AES256-GCM-SHA384 socket.timeout - timed out ECDH-ECDSA-AES256-GCM-SHA384 socket.timeout - timed out RC4-SHA 128 bits Timeout on HTTP GET Accepted Cipher Suite(s): CAMELLIA256-SHA 256 bits HTTP 200 OK RC4-SHA 128 bits HTTP 200 OK CAMELLIA128-SHA 128 bits HTTP 200 OK Undefined - An unexpected error happened: ADH-CAMELLIA256-SHA socket.timeout - timed out SCAN COMPLETED IN 9.68 S ------------------------ Example 7. Testing SSL/TLS with testssl.sh Testssl.sh [38] is a Linux shell script which provides clear output to facilitate good decision making. It can not only check web servers but also services on other ports, supports STARTTLS, SNI, SPDY and does a few check on the HTTP header as well. It’s a very easy to use tool. Here’s some sample output (without colors): user@myhost: % testssl.sh owasp.org ############################################# ########### testssl.sh v2.0rc3 (https: /testssl.sh) ($Id: testssl.sh,v 1.97 2014/04/15 21:54:29 dirkw Exp $) This program is free software. Redistribution + modification under GPLv2 is permitted. USAGE w/o ANY WARRANTY. USE IT AT YOUR OWN RISK! Note you can only check the server against what is available (ciphers/protocols) locally on your machine ############################################# ########### Using “OpenSSL 1.0.2-beta1 24 Feb 2014” on “myhost://bin/openssl64” Testing now (2014-04-17 15:06) ---> owasp.org:443 Testing Protocols Preferred Cipher Suite: SSLv2 SSLv3 NOT offered (ok) offered
165 Web Application Penetration Testing TLSv1 offered (ok) TLSv1.1 offered (ok) TLSv1.2 offered (ok) SPDY/NPN not offered --> Testing standard cipher lists Null Cipher NOT offered (ok) Anonymous NULL Cipher NOT offered (ok) Anonymous DH Cipher NOT offered (ok) 40 Bit encryption NOT offered (ok) 56 Bit encryption NOT offered (ok) Export Cipher (general) NOT offered (ok) Low ( Testing server defaults (Server Hello) Negotiated protocol Negotiated cipher TLSv1.2 AES128-GCM-SHA256 Server key size 2048 bit TLS server extensions: server name, renegotiation info, session ticket, heartbeat Session Tickets RFC 5077 300 seconds --> Testing specific vulnerabilities Heartbleed (CVE-2014-0160), experimental NOT vulnerable (ok) Renegotiation (CVE 2009-3555) NOT vulnerable (ok) CRIME, TLS (CVE-2012-4929) NOT vulnerable (ok) --> Checking RC4 Ciphers RC4 seems generally available. Now testing specific ciphers... Hexcode Cipher Name KeyExch. Encryption Bits --------------------------------------------------------- ----------- [0x05] RC4-SHA RSA RC4 128 RC4 is kind of broken, for e.g. IE6 consider 0x13 or 0x0a --> Testing HTTP Header response HSTS no Server Apache Application (None) --> Testing (Perfect) Forward Secrecy (P)FS) no PFS available Done now (2014-04-17 15:07) ---> owasp.org:443
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