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1) #!/usr/bin/python -tO
2) 
3) # freewvs 0.1 - the free web vulnerability scanner
4) #
5) # http://source.schokokeks.org/freewvs/
6) #
7) # Copyright 2007 Hanno Boeck, schokokeks.org <hanno@schokokeks.org>
8) #
9) # Contributions by
10) # Fabian Fingerle <fabian@datensalat.eu>
11) #
12) # This program is free software: you can redistribute it and/or modify
13) # it under the terms of the GNU General Public License as published by
14) # the Free Software Foundation, either version 3 of the License, or
15) # (at your option) any later version.
16) #
17) # This program is distributed in the hope that it will be useful,
18) # but WITHOUT ANY WARRANTY; without even the implied warranty of
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19) # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.    See the
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20) # GNU General Public License for more details.
21) #
22) # You should have received a copy of the GNU General Public License
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23) # along with this program.    If not, see <http://www.gnu.org/licenses/>.
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24) 
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25) import ConfigParser, os, glob, pprint, re, optparse, sys, gettext
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26) 
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27) gettext.textdomain('freewvs')
28) _ = gettext.gettext
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29) 
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30) def versioncompare(safe_version, find_version):
31)     if safe_version == [""]:
32)         return True
33)     for i in range(min(len(find_version), len(safe_version))):
34)         if int(find_version[i])<int(safe_version[i]):
35)             return True
36)         if int(find_version[i])>int(safe_version[i]):
37)             return False
38)     return (len(find_version)<len(safe_version))
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39) 
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40) def vulnprint(appname, version, safeversion, vuln, vfilename, subdir, fancy):
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41)     appdir = '/'.join(os.path.abspath(vfilename).split('/')[:-1-subdir])
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42)     if fancy:
43)         print _("Directory: %(appdir)s") % vars()
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44)         if safeversion!="ok":
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45)             if safeversion!="":
46)                 print _("Vulnerable %(appname)s %(version)s found, please update to " \
47)                         "%(safeversion)s or above.") % vars()
48)             else:
49)                 print _("Vulnerable %(appname)s %(version)s found, no fixed version available." \
50)                         ) % vars()
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51)             if vuln[:3] == "CVE":
52)                 print _("http://cve.mitre.org/cgi-bin/cvename.cgi?name=%(vuln)s") \
53)                         % vars()
54)             else:
55)                 print (vuln)
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56)         else:
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57)             print _("%(appname)s %(version)s found." ) % vars()
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58)         print
59)     else:
60)         print "%(appname)s %(version)s (%(safeversion)s) %(vuln)s %(appdir)s" \
61)               % vars()
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62) 
63) pp = pprint.PrettyPrinter(indent=4)
64) 
65) # Command-line options
66) parser = optparse.OptionParser()
67) parser.add_option("-a", "--all", action="store_true", dest="ALL",
68)                   help="Show all webapps found, not just vulnerable")
69) parser.add_option("-d", "--debug", action="store_true", dest="DEBUG",
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70)                   help="Show lots of debugging output, mainly useful"+ \
71)                   "for development")
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72) parser.add_option("-f", "--fancy", action="store_true", dest="FANCY",
73)                   help="Show more fancy output")
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74) opts, args = parser.parse_args()
75) 
76) # Parse vulnerability database
77) config = ConfigParser.ConfigParser()
78) config.read(glob.glob('/usr/share/freewvs/*.freewvs'))
79) config.read(glob.glob('/usr/local/share/freewvs/*.freewvs'))
80) config.read(glob.glob(os.path.dirname(sys.argv[0])+'/freewvsdb/*.freewvs'))
81) 
82) vdb = []
83) for sect in config.sections():
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84)     item = {}
85) 
86)     # base options
87)     item['name'] = sect
88)     item['safe'] = config.get(sect, 'safe')
89)     item['file'] = config.get(sect, 'file')
90)     item['vuln'] = config.get(sect, 'vuln')
91)     item['subdir'] = int(config.get(sect, 'subdir'))
92) 
93)     # match magic
94)     item['variable'] = []
95)     for var in config.get(sect,'variable').split(","):
96)         item['variable'].append(re.compile(re.escape(var)+
97)                                 r"[^0-9.]*[.]*([0-9.]*[0-9])[^0-9.]"))
98) 
99)     # optional options
100)     if config.has_option(sect,'extra_match'):
101)         item['extra_match'] = config.get(sect,'extra_match')
102)     else:
103)         item['extra_match'] = False
104)     if config.has_option(sect,'add_minor'):
105)         item['add_minor'] = config.get(sect,'add_minor')
106)     else:
107)         item['add_minor'] = False
108)     if config.has_option(sect,'old_safe'):
109)         item['old_safe'] = config.get(sect,'old_safe').split(",")
110)     else:
111)         item['old_safe'] = []
112) 
113)     vdb.append(item)
114) if opts.DEBUG:
115)     pp.pprint(vdb)
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116) 
117) 
118) # start the search
119) 
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120) for fdir in args:
121)     for root, NULL, files in os.walk(fdir):
122)         for filename in files:
123)             for item in vdb:
124)                 if filename == item['file']:
125)                     mfile = os.path.join(root, filename)
126)                     file = open(mfile)
127)                     filestr = file.read()
128)                     file.close()
129) 
130)                     if item['extra_match']:
131)                         ematch = (filestr.find(item['extra_match']) != -1)
132)                     else:
133)                         ematch = True
134) 
135)                     findversion = []
136)                     for var in item['variable']:
137)                         var = var.search(filestr)
138)                         if not var:
139)                             findversion = False
140)                             break
141)                         else:
142)                             findversion.append(var.group(1))
143) 
144)                     if findversion and ematch:
145)                         findversion = '.'.join(findversion)
146) 
147)                         # Very ugly phpbb workaround
148)                         if item['add_minor']:
149)                             findversion = findversion.split('.')
150)                             findversion[-1] = str(int(findversion[-1])+
151)                                             int(item['add_minor']))
152)                             findversion = '.'.join(findversion)
153) 
154)                         if not (versioncompare(item['safe'].split('.'), \
155)                                 findversion.split('.'))) or \
156)                                 item['old_safe'].count(findversion)>0:
157)                             if opts.ALL:
158)                                 if opts.DEBUG:
159)                                     print "File "+mfile
160)                                 vulnprint(item['name'], findversion, \
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161)                                           "ok", "", mfile, item['subdir'], \
162)                                           opts.FANCY)
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163)                         else:
164)                             if opts.DEBUG:
165)                                 print "File "+mfile
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166)                             safev="0"
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167)                             for ver in item['old_safe']:
168)                                 if (versioncompare(ver.split('.'), \
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169)                                     findversion.split('.') ) and \
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170)                                     !versioncompare(ver.split('.'), \
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171)                                     safev.split('.')) ):
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172)                                     safev=ver
173)                             if safev=="":
174)                                 safev=item['safe']
175) 
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176)                             vulnprint (item['name'], findversion, \
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177)                                        safev, item['vuln'], \
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178)                                        mfile, item['subdir'], opts.FANCY)