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cipherscan
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Fix dhparam size detection in inter and modern levels

This commit is contained in:
Julien Vehent 2014-10-17 11:09:28 -04:00
parent 28c6c2488b
commit a11b594ab4
1 changed files with 11 additions and 9 deletions
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20
analyze.py
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@ -146,9 +146,10 @@ def is_intermediate(results):
if conn['sigalg'][0] not in ['sha256WithRSAEncryption', 'sha384WithRSAEncryption', 'sha512WithRSAEncryption']:
logging.debug(conn['sigalg'][0] + ' is a not an intermediate signature')
has_sha256 = False
if conn['cipher'][0:2] == 'DHE':
if conn['pfs'] != 'DH,2048bits':
logging.debug(conn['pfs']+ ' is not a good DH parameters for the old configuration')
if 'DHE' in conn['cipher'][0:3]:
dhparam = conn['pfs'].split(',')[1].split('b')[0]
if int(dhparam) < 2048:
logging.debug(conn['pfs']+ ' is not a good DH parameters for the intermediate configuration')
inter = False
has_dhparam = False
if conn['ocsp_stapling'] == 'False':
@ -172,7 +173,7 @@ def is_intermediate(results):
if not has_sha256:
failures[lvl].append("consider using a SHA-256 certificate")
if not has_dhparam:
failures[lvl].append("use a DH parameter of 2048 bits")
failures[lvl].append("use a DH parameter of 2048 bits or more")
inter = False
if not has_ocsp:
failures[lvl].append("consider enabling OCSP Stapling")
@ -201,10 +202,11 @@ def is_modern(results):
logging.debug(conn['sigalg'][0] + ' is a not an modern signature')
modern = False
has_sha256 = False
if conn['cipher'][0:2] == 'DHE':
if conn['pfs'] != 'DH,2048bits':
logging.debug(conn['pfs']+ ' is not a good DH parameters for the old configuration')
inter = False
if 'DHE' in conn['cipher'][0:3]:
dhparam = conn['pfs'].split(',')[1].split('b')[0]
if int(dhparam) < 2048:
logging.debug(conn['pfs']+ ' is not a good DH parameters for the modern configuration')
modern = False
has_dhparam = False
if conn['ocsp_stapling'] == 'False':
has_ocsp = False
@ -221,7 +223,7 @@ def is_modern(results):
failures[lvl].append("use a SHA-256 certificate")
modern = False
if not has_dhparam:
failures[lvl].append("use a DH parameter of 2048 bits")
failures[lvl].append("use a DH parameter of 2048 bits or more")
modern = False
if not has_ocsp:
failures[lvl].append("consider enabling OCSP Stapling")