-
Notifications
You must be signed in to change notification settings - Fork 2
/
Copy pathcvedatafeed.py
1348 lines (1261 loc) · 45.8 KB
/
cvedatafeed.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
import os, sys
from os import listdir
from os.path import isfile, join
from urllib.parse import urlparse
from flask import Flask
from flask_pymongo import PyMongo
import requests
import logging
from datetime import datetime, timedelta, timezone
import datetime
import time
from zipfile import ZipFile
import shutil
import json
from threading import Thread
import threading
import _thread
import base64
import traceback
app = Flask(__name__)
app.config["MONGO_URI"] = os.environ.get('MONGODB_URI', "mongodb://127.0.0.1:27017/cvedata")
mongo = PyMongo(app)
env_loglevel = os.environ.get('LOG_LEVEL', "INFO")
if env_loglevel == "ERROR":
loglevel = logging.ERROR
elif env_loglevel == "DEBUG":
loglevel = logging.DEBUG
else:
loglevel = logging.INFO
env_logfile = os.environ.get('LOG_FILE', False)
if env_logfile:
loghandler = [ logging.FileHandler("debug.log"), logging.StreamHandler()]
else:
loghandler = [ logging.StreamHandler()]
logging.basicConfig(
level=loglevel,
format="%(asctime)s [%(levelname)s] %(message)s",
handlers=loghandler
)
def saveConfigkey(configname, value):
findrecord = {}
findrecord['name'] = configname
newvalues = { "$set": { "value": value } }
mongo.db.configuration.update_one(findrecord, newvalues, upsert=True)
def getConfigkey(configname):
findrecord = {}
findrecord['name'] = configname
result = mongo.db.configuration.find_one(findrecord)
if result == None:
return "0"
else:
return result['value']
def saveStatistic(statname, value):
findrecord = {}
findrecord['statname'] = statname
newvalues = { "$set": { "value": value } }
mongo.db.statistics.update_one(findrecord, newvalues, upsert=True)
def getStatistic(statname):
findrecord = {}
findrecord['statname'] = statname
result = mongo.db.statistics.find_one(findrecord)
if result == None:
return "0"
else:
return result['value']
def getCveList(nameid):
findrecord = {}
findrecord['nameid'] = nameid
result = mongo.db.cvelists.find_one(findrecord)
if result == None:
return "0"
else:
return result['cves']
def updateVulTypeCollection(cveid, vultype):
try:
if vultype[0] != "None":
for t in vultype:
findrecord = {}
findrecord['vultype'] = t
if mongo.db.vultypes.count_documents(findrecord) == 0:
findrecord['cves'] = [cveid]
findrecord['numberofcve'] = 1
mongo.db.vultypes.insert_one(findrecord)
else:
newvalues = { "$addToSet": { "cves": cveid } }
mongo.db.vultypes.update_one(findrecord, newvalues)
newvalues = { "$inc": { "numberofcve": 1 } }
mongo.db.vultypes.update_one(findrecord, newvalues)
except Exception as e:
logging.error("Exception in updateVulTypeCollection %s" % e)
def getCVEtitle(cvejson):
fmvultype = ""
for t in cvejson["vultype"]:
if fmvultype != "":
fmvultype = fmvultype + ", "
fmvultype = fmvultype + t.replace("_", " ").replace("-", " ").replace("\\","").replace("/","").replace("..",":").strip().title()
if len(cvejson["affected"]) == 0:
strproduct = "Unknown"
else:
aff = cvejson["affected"][0]
ar = aff.split(":")
strproduct = "%s_%s" % (ar[1], ar[2])
strproduct = strproduct.replace("_", " ").replace("-", " ").replace("\\","").replace("/","").replace("..",":").strip().title()
cvetitle = "%s: %s vulnerability on %s" % (cvejson["CVEID"], fmvultype, strproduct)
return cvetitle
def insertNewCVE(cvejson):
try:
cvetitle = getCVEtitle(cvejson)
cvejson["title"] = cvetitle
return mongo.db.cves.insert_one(cvejson).inserted_id
except Exception as e:
logging.error("Exception in insertNewCVE %s" % e)
return -1
def replaceCVE(cveid, newcve):
try:
cvetitle = getCVEtitle(newcve)
newcve["title"] = cvetitle
findrecord = {}
findrecord['CVEID'] = cveid
return mongo.db.cves.replace_one(findrecord, newcve)
except Exception as e:
logging.error("Exception in replaceCVE %s" % e)
return -1
def getCVE(cveid):
findrecord = {}
findrecord['CVEID'] = cveid
result = mongo.db.cves.find_one(findrecord)
if result == None:
return 0
else:
return result
def checkCveExist(cveid):
findrecord = {}
findrecord['CVEID'] = cveid
return mongo.db.cves.count_documents(findrecord)
# cpe 2.3 parser processing
def getCompressCpeStr(Cpestr):
arrstr = Cpestr.replace("\\:", "..").split(':')
if(len(arrstr) < 7 or arrstr[0] != 'cpe' or arrstr[1] != '2.3'):
logging.error("Wrong format in getCompressCpeStr with %s" % Cpestr)
return Cpestr
else:
version = arrstr[5]
for i in range(6,len(arrstr)):
if(arrstr[i]!='*'):
version = version + '_' + arrstr[i]
else:
continue
return "%s:%s:%s:%s" % (arrstr[2], arrstr[3], arrstr[4], version)
# method: del/add
def getNewScoreAvg(method, lstscore, curavg, numberofcve, jsoncve):
keyscore = str(int(jsoncve["baseScore"]))
if keyscore == "10":
keyscore = "9"
if keyscore in lstscore.keys():
ototal = lstscore[keyscore]
if method == "add":
lstscore[keyscore] = ototal + 1
elif method == "del":
lstscore[keyscore] = ototal - 1
else:
if method == "add":
lstscore[keyscore] = 1
if method == "add":
newavg = (curavg * numberofcve + jsoncve["baseScore"]) / (numberofcve + 1)
elif method == "del":
if (numberofcve - 1) == 0:
newavg = 0
else:
newavg = (curavg * numberofcve - jsoncve["baseScore"]) / (numberofcve - 1)
return {"scorestat": lstscore, "avgscore": newavg}
def getNewVultypeStat(method, curstat, jsoncve):
lstvultype = ["dos", "code_execution", "memory_corruption", "sql_injection", "xss", "path_traversal", "bypass_something", "information_exposure", "privilege_escalation", "other"]
vultype = jsoncve["vultype"]
cveid = jsoncve["CVEID"]
aid = cveid.split("-")
year = int(aid[1])
foundindex = -1
existstat = {}
for i in range(len(curstat)):
if curstat[i]["year"] == year:
foundindex = i
existstat = curstat[i]
break
if foundindex == -1:
newstat = {}
newstat["year"] = year
newstat["vuls"] = {}
for vul in lstvultype:
if vul in vultype:
newstat["vuls"][vul] = 1
else:
newstat["vuls"][vul] = 0
if method == "add":
curstat.append(newstat)
else:
newstat = existstat.copy()
for vul in vultype:
if method == "add":
newstat["vuls"][vul] = existstat["vuls"][vul] + 1
elif method == "del":
newstat["vuls"][vul] = existstat["vuls"][vul] - 1
curstat[foundindex] = newstat
return curstat
def addCveidtoVersion(versionstr, jsoncve):
Cveid = jsoncve["CVEID"]
findrecord = {}
findrecord['versionid'] = versionstr
if mongo.db.versions.count_documents(findrecord) == 0:
#findrecord['cves'] = [Cveid]
findrecord['numberofcve'] = 1
keyscore = str(int(jsoncve["baseScore"]))
findrecord['scorestat'] = {}
findrecord['scorestat'][keyscore] = 1
findrecord['avgscore'] = jsoncve["baseScore"]
newstat = getNewVultypeStat("add", [], jsoncve)
findrecord['vulstat'] = newstat
mongo.db.versions.insert_one(findrecord)
findlist = {}
findlist["nameid"] = versionstr
newlist = { "$set": { "cves": [Cveid] } }
mongo.db.cvelists.update_one(findlist, newlist, upsert=True)
else:
cursor = mongo.db.versions.find_one(findrecord)
newscore = getNewScoreAvg("add", cursor["scorestat"], cursor["avgscore"], cursor["numberofcve"], jsoncve)
newstat = getNewVultypeStat("add", cursor["vulstat"], jsoncve)
newvalues ={}
#newvalues["$addToSet"] = { "cves": Cveid }
newvalues["$inc"] = { "numberofcve": 1 }
setstat = { "vulstat": newstat }
newvalues["$set"] = {**newscore, **setstat}
mongo.db.versions.update_one(findrecord, newvalues)
newlist = {}
newlist["$addToSet"] = { "cves": Cveid }
findlist = {}
findlist["nameid"] = versionstr
mongo.db.cvelists.update_one(findlist, newlist)
def delCveidfromVersion(versionstr, jsoncve):
Cveid = jsoncve["CVEID"]
findrecord = {}
findrecord['versionid'] = versionstr
cursor = mongo.db.versions.find_one(findrecord)
if cursor != None:
newscore = getNewScoreAvg("del", cursor["scorestat"], cursor["avgscore"], cursor["numberofcve"], jsoncve)
newstat = getNewVultypeStat("del", cursor["vulstat"], jsoncve)
newvalues ={}
newvalues["$inc"] = { "numberofcve": -1 }
setstat = { "vulstat": newstat }
#setcve = { "cves": newlst }
#newvalues["$set"] = {**newscore, **setstat, **setcve}
newvalues["$set"] = {**newscore, **setstat}
mongo.db.versions.update_one(findrecord, newvalues)
currentlst = getCveList(versionstr)
newlst = list(set(currentlst) - set([Cveid]))
newlist = {}
newlist["$set"] = { "cves": newlst }
findlist = {}
findlist["nameid"] = versionstr
mongo.db.cvelists.update_one(findlist, newlist)
def addCveidtoProduct(productstr, versionstr, jsoncve):
Cveid = jsoncve["CVEID"]
findrecord = {}
findrecord['productid'] = productstr
if mongo.db.products.count_documents(findrecord) == 0:
#findrecord['cves'] = [Cveid]
findrecord['versions'] = [versionstr]
findrecord['numberofcve'] = 1
keyscore = str(int(jsoncve["baseScore"]))
findrecord['scorestat'] = {}
findrecord['scorestat'][keyscore] = 1
findrecord['avgscore'] = jsoncve["baseScore"]
newstat = getNewVultypeStat("add", [], jsoncve)
findrecord['vulstat'] = newstat
mongo.db.products.insert_one(findrecord)
findlist = {}
findlist["nameid"] = productstr
newlist = { "$set": { "cves": [Cveid] } }
mongo.db.cvelists.update_one(findlist, newlist, upsert=True)
else:
cursor = mongo.db.products.find_one(findrecord)
newscore = getNewScoreAvg("add", cursor["scorestat"], cursor["avgscore"], cursor["numberofcve"], jsoncve)
newstat = getNewVultypeStat("add", cursor["vulstat"], jsoncve)
newvalues ={}
#setcve = { "cves": Cveid }
setversion = { "versions": versionstr }
#newvalues["$addToSet"] = {**setcve, **setversion}
newvalues["$addToSet"] = {**setversion}
newvalues["$inc"] = { "numberofcve": 1 }
setstat = { "vulstat": newstat }
newvalues["$set"] = {**newscore, **setstat}
mongo.db.products.update_one(findrecord, newvalues)
newlist = {}
newlist["$addToSet"] = { "cves": Cveid }
findlist = {}
findlist["nameid"] = productstr
mongo.db.cvelists.update_one(findlist, newlist)
def delCveidfromProduct(productstr, jsoncve):
Cveid = jsoncve["CVEID"]
findrecord = {}
findrecord['productid'] = productstr
cursor = mongo.db.products.find_one(findrecord)
if cursor != None:
newscore = getNewScoreAvg("del", cursor["scorestat"], cursor["avgscore"], cursor["numberofcve"], jsoncve)
newstat = getNewVultypeStat("del", cursor["vulstat"], jsoncve)
newvalues ={}
newvalues["$inc"] = { "numberofcve": -1 }
setstat = { "vulstat": newstat }
#setcve = { "cves": newlst }
#newvalues["$set"] = {**newscore, **setstat, **setcve}
newvalues["$set"] = {**newscore, **setstat}
mongo.db.products.update_one(findrecord, newvalues)
currentlst = getCveList(productstr)
newlst = list(set(currentlst) - set([Cveid]))
newlist = {}
newlist["$set"] = { "cves": newlst }
findlist = {}
findlist["nameid"] = productstr
mongo.db.cvelists.update_one(findlist, newlist)
def addCveidtoVendor(vendorstr, productstr, jsoncve):
Cveid = jsoncve["CVEID"]
findrecord = {}
findrecord['vendorid'] = vendorstr
if mongo.db.vendors.count_documents(findrecord) == 0:
#findrecord['cves'] = [Cveid]
findrecord['products'] = [productstr]
findrecord['numberofcve'] = 1
keyscore = str(int(jsoncve["baseScore"]))
findrecord['scorestat'] = {}
findrecord['scorestat'][keyscore] = 1
findrecord['avgscore'] = jsoncve["baseScore"]
newstat = getNewVultypeStat("add", [], jsoncve)
findrecord['vulstat'] = newstat
mongo.db.vendors.insert_one(findrecord)
findlist = {}
findlist["nameid"] = vendorstr
newlist = { "$set": { "cves": [Cveid] } }
mongo.db.cvelists.update_one(findlist, newlist, upsert=True)
else:
cursor = mongo.db.vendors.find_one(findrecord)
newscore = getNewScoreAvg("add", cursor["scorestat"], cursor["avgscore"], cursor["numberofcve"], jsoncve)
newstat = getNewVultypeStat("add", cursor["vulstat"], jsoncve)
newvalues ={}
#newvalues["$addToSet"] = {**setcve, **setproduct}
newvalues["$addToSet"] = { "products": productstr }
newvalues["$inc"] = { "numberofcve": 1 }
setstat = { "vulstat": newstat }
newvalues["$set"] = {**newscore, **setstat}
mongo.db.vendors.update_one(findrecord, newvalues)
newlist = {}
setcve = { "cves": Cveid }
newlist["$addToSet"] = {**setcve}
findlist = {}
findlist["nameid"] = vendorstr
mongo.db.cvelists.update_one(findlist, newlist)
def delCveidfromVendor(vendorstr, jsoncve):
Cveid = jsoncve["CVEID"]
findrecord = {}
findrecord['vendorid'] = vendorstr
cursor = mongo.db.vendors.find_one(findrecord)
if cursor != None:
newscore = getNewScoreAvg("del", cursor["scorestat"], cursor["avgscore"], cursor["numberofcve"], jsoncve)
newstat = getNewVultypeStat("del", cursor["vulstat"], jsoncve)
newvalues ={}
newvalues["$inc"] = { "numberofcve": -1 }
setstat = { "vulstat": newstat }
#newvalues["$set"] = {**newscore, **setstat, **setcve}
newvalues["$set"] = {**newscore, **setstat}
mongo.db.vendors.update_one(findrecord, newvalues)
currentlst = getCveList(vendorstr)
newlst = list(set(currentlst) - set([Cveid]))
newlist = {}
newlist["$set"] = setcve = { "cves": newlst }
findlist = {}
findlist["nameid"] = vendorstr
mongo.db.cvelists.update_one(findlist, newlist)
# recursive function
# return list compressed CpeStr
def getAllcpeUriFromConf(ConJson, retCpeUri):
if type(ConJson) == dict:
for k in ConJson.keys():
if k == "cpe23Uri":
retCpeUri.append(getCompressCpeStr(ConJson[k]))
return retCpeUri
else:
retCpeUri = getAllcpeUriFromConf(ConJson[k], retCpeUri)
elif type(ConJson) == list:
for i in ConJson:
retCpeUri = getAllcpeUriFromConf(i, retCpeUri)
elif type(ConJson) == str or type(ConJson) == bool:
pass
else:
logging.error("Wrong format getAllcpeUriFromConf %s" % ConJson)
return retCpeUri
import re
def testFilter(typestr, arrfilter):
cvefiles = [f for f in listdir("CVEData") if isfile(join("CVEData", f))]
arr = []
for cvefile in cvefiles:
print("[+] %s" % cvefile)
with open("CVEData/" + cvefile, 'r') as file:
cvedata = [json.loads(line) for line in file]
numcve = 0
for cve in cvedata:
try:
numcve = numcve + 1
if numcve == 2000:
break
if "Vulnerability Type(s)" in cve.keys():
if typestr in cve["Vulnerability Type(s)"].lower():
cvejs = getCVE(cve["CVE ID"])
arr.append(cvejs["cve"]["description"]["description_data"][0]["value"].lower())
except Exception as e:
logging.error("Exception in getTypeFilter %s" % e)
pass
im = 0
for a in arr:
bfound = False
for b in arrfilter:
if len(re.findall(b,a))>0:
bfound = True
break
if bfound:
im = im + 1
else:
logging.info(a)
logging.info("out: %d/%d" % (im, len(arr)))
def checkKeywordinDescription(desc, kws):
bfound = False
for kw in kws:
if len(re.findall(kw, desc)) > 0:
bfound = True
break
return bfound
#testFilter("exec code",[r"(code|command).*(execution|execute)", r"(execution|execute).*(code|command)"])
#out: 10552/10552
#testFilter("dos",[r"denial of service"])
#out: 8260/8260
#testFilter("overflow",[r"overflow", r"(restrict|crash|invalid|violat|corrupt).*(buffer|stack|heap|memory)", r"(buffer|stack|heap|memory).*(restrict|crash|invalid|violat|corrupt)"])
#out: 5242/5814
#memory corruption
#https://www.cvedetails.com/cwe-details/120/cwe.html
#https://www.cvedetails.com/cwe-details/119/cwe.html
#https://www.cvedetails.com/cwe-details/190/cwe.html
#testFilter("sql",[r"sql injection"])
#https://www.cvedetails.com/cwe-details/89/cwe.html
#testFilter("xss",[r"xss"])
#https://www.cvedetails.com/cwe-details/79/cwe.html
#Dir. Trav.
#testFilter("dir. trav",[r"directory traversal"])
#https://www.cvedetails.com/cwe-details/22/cwe.html
#testFilter("bypass",[r"bypass"])
#testFilter("info",[r"man-in-the-middle"])
#https://www.cvedetails.com/cwe-details/200/cwe.html
#testFilter("priv",[r"(gain|escalat).*privil", r"privil.*(gain|escalat)"])
#out: 1910/1910
def getVulTypeFromCVE(cve):
logging.info("Get Vul type of %s" % cve["CVEID"])
try:
cvedesc = cve["cve"]["description"]["description_data"][0]["value"].lower()
except Exception:
return ["None"]
try:
cvecwe = cve["cve"]["problemtype"]["problemtype_data"][0]["description"][0]["value"].lower()
except Exception:
cvecwe = "None"
vultype = []
#code_execution
if checkKeywordinDescription(cvedesc, [r"(code|command).*(execution|execute)", r"(execution|execute).*(code|command)"]):
vultype.append("code_execution")
#dos
if checkKeywordinDescription(cvedesc, [r"denial of service"]):
vultype.append("dos")
#memory_corruption
if cvecwe in ["cwe-119", "cwe-120", "cwe-190"]:
vultype.append("memory_corruption")
elif checkKeywordinDescription(cvedesc, [r"overflow", r"(restrict|crash|invalid|violat|corrupt).*(buffer|stack|heap|memory)", r"(buffer|stack|heap|memory).*(restrict|crash|invalid|violat|corrupt)"]):
vultype.append("memory_corruption")
#sql_injection
if cvecwe == "cwe-89":
vultype.append("sql_injection")
#xss
if cvecwe == "cwe-79":
vultype.append("xss")
#path_traversal
if cvecwe == "cwe-22":
vultype.append("path_traversal")
elif checkKeywordinDescription(cvedesc, [r"directory traversal"]):
vultype.append("path_traversal")
#bypass_something
if checkKeywordinDescription(cvedesc, [r"bypass"]):
vultype.append("bypass_something")
#information_exposure
if cvecwe == "cwe-200":
vultype.append("information_exposure")
elif checkKeywordinDescription(cvedesc, [r"man-in-the-middle"]):
vultype.append("information_exposure")
#privilege_escalation
if checkKeywordinDescription(cvedesc, [r"(gain|escalat).*privil", r"privil.*(gain|escalat)"]):
vultype.append("privilege_escalation")
if len(vultype) == 0:
vultype.append("other")
logging.info("Vultype is %s" % vultype)
return vultype
# Main function in convert cve json to mongodb
# return integer: number of cve imported, return -1 if error
def importCVEFromJsonfile(JsonfilePath):
logging.info("importCVEFromJsonfile start with file %s" % JsonfilePath)
if not os.path.isfile(JsonfilePath):
logging.error("File %s is not exist" % JsonfilePath)
return -1
# read file to json
with open(JsonfilePath, encoding="utf8") as f:
nvddata = json.load(f)
if 'CVE_Items' not in nvddata.keys():
logging.error("Wrong format, not exist CVE_Items property")
return -2
lstcvejson = nvddata['CVE_Items']
logging.info("Loaded %d records" % len(lstcvejson))
# foreach cve record
# 1. create cve record info: id, original properties
# 2. get list affect version from orginal configurations properties
retcount = 0
for cvejson in lstcvejson:
try:
# keep raw data and get up some importance properties to first level properties
cveid = cvejson['cve']['CVE_data_meta']['ID']
logging.info("Processing ID %s" % cveid)
if 'impact' not in cvejson.keys() or 'baseMetricV2' not in cvejson['impact'].keys():
logging.info("The CVE %s has not any information" % cveid)
continue
if checkCveExist(cveid):
logging.info("CVE %s is existing!" % cveid)
continue
if 'baseMetricV3' in cvejson['impact'].keys():
cvejson['baseScore'] = cvejson['impact']['baseMetricV3']['cvssV3']['baseScore']
cvejson['vectorString'] = cvejson['impact']['baseMetricV3']['cvssV3']['vectorString']
else:
cvejson['baseScore'] = cvejson['impact']['baseMetricV2']['cvssV2']['baseScore']
cvejson['vectorString'] = cvejson['impact']['baseMetricV2']['cvssV2']['vectorString']
cvejson['CVEID'] = cveid
vultype = getVulTypeFromCVE(cvejson)
cvejson['vultype'] = vultype
cvejson['history'] = ["Created at %s from %s" % (datetime.datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"), os.path.basename(JsonfilePath))]
lstcpe = []
cvejson['affected'] = getAllcpeUriFromConf(cvejson['configurations'], lstcpe)
cveobjid = insertNewCVE(cvejson)
if cveobjid == -1:
time.sleep(1)
# retry
cveobjid = insertNewCVE(cvejson)
if cveobjid == -1:
exit(-1)
updateVulTypeCollection(cvejson["CVEID"], vultype)
# 3. push cveid to vendors, product and version collections
for versionstr in cvejson['affected']:
# 3.1 push to versions
addCveidtoVersion(versionstr, cvejson)
arraf = versionstr.split(':')
vendorstr = arraf[1]
productstr = "%s:%s:%s" % (arraf[0], arraf[1], arraf[2])
# 3.2 push to product
addCveidtoProduct(productstr, versionstr, cvejson)
# 3.3 push to vendor
addCveidtoVendor(vendorstr, productstr, cvejson)
retcount = retcount + 1
except Exception as e:
logging.error("Exception in importCVEFromJsonfile %s" % e)
traceback.print_exc()
pass
logging.info("importCVEFromJsonfile done with file %s" % JsonfilePath)
return retcount
def updateCVEFromJsonfile(JsonfilePath):
logging.info("Starting updateCVEFromJsonfile with file %s" % JsonfilePath)
if not os.path.isfile(JsonfilePath):
logging.error("File %s is not exist" % JsonfilePath)
return -1
# read file to json
with open(JsonfilePath, encoding="utf8") as f:
nvddata = json.load(f)
if 'CVE_Items' not in nvddata.keys():
logging.error("Wrong format, not exist CVE_Items property")
return -2
lstcvejson = nvddata['CVE_Items']
logging.info("Loaded %d records" % len(lstcvejson))
# foreach cve record
# 1. get cve record info: id, original properties
# 2. get list affect version object id from orginal configurations properties
retcount = 0
updatecount = 0
lastcveupdate = []
for cvejson in lstcvejson:
try:
# keep raw data and get up some importance properties to first level properties
cveid = cvejson['cve']['CVE_data_meta']['ID']
logging.info("Processing ID %s" % cveid)
if 'impact' not in cvejson.keys() or 'baseMetricV2' not in cvejson['impact'].keys():
logging.info("The CVE %s has not any information" % cveid)
continue
if 'baseMetricV3' in cvejson['impact'].keys():
cvejson['baseScore'] = cvejson['impact']['baseMetricV3']['cvssV3']['baseScore']
cvejson['vectorString'] = cvejson['impact']['baseMetricV3']['cvssV3']['vectorString']
else:
cvejson['baseScore'] = cvejson['impact']['baseMetricV2']['cvssV2']['baseScore']
cvejson['vectorString'] = cvejson['impact']['baseMetricV2']['cvssV2']['vectorString']
cvejson['CVEID'] = cveid
vultype = getVulTypeFromCVE(cvejson)
cvejson['vultype'] = vultype
lstcpe = []
cvejson['affected'] = getAllcpeUriFromConf(cvejson['configurations'], lstcpe)
existcve = getCVE(cveid)
if existcve == 0:
# add new cve
logging.info("CVE %s is not exist => add new" % cveid)
cvejson['history'] = ["Created at %s from %s" % (datetime.datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"), os.path.basename(JsonfilePath))]
if len(lastcveupdate) >= 20:
lastcveupdate.pop(0)
lastcveupdate.append({"CVEID": cveid, "timeupdate": cvejson['lastModifiedDate']})
cveobjid = insertNewCVE(cvejson)
if cveobjid == -1:
time.sleep(1)
# retry
cveobjid = insertNewCVE(cvejson)
if cveobjid == -1:
exit(-1)
updateVulTypeCollection(cvejson["CVEID"], vultype)
# 3. push cveid to vendors, product and version collections
for versionstr in cvejson['affected']:
# 3.1 push to versions
addCveidtoVersion(versionstr, cvejson)
arraf = versionstr.split(':')
vendorstr = arraf[1]
productstr = "%s:%s:%s" % (arraf[0], arraf[1], arraf[2])
# 3.2 push to product
addCveidtoProduct(productstr, versionstr, cvejson)
# 3.3 push to vendor
addCveidtoVendor(vendorstr, productstr, cvejson)
retcount = retcount + 1
else:
# check latest
if existcve['lastModifiedDate'] == cvejson['lastModifiedDate']:
logging.info("Update CVE %s is not new!" % cveid)
continue
# update
existcve['history'].append("Updated at %s from %s" % (datetime.datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"), os.path.basename(JsonfilePath)))
cvejson['history'] = existcve['history']
if len(lastcveupdate) >= 20:
lastcveupdate.pop(0)
lastcveupdate.append({"CVEID": cveid, "timeupdate": cvejson['lastModifiedDate']})
newversions = []
newproducts = []
newvendors = []
for versionstr in cvejson['affected']:
newversions.append(versionstr)
arraf = versionstr.split(':')
vendorstr = arraf[1]
productstr = "%s:%s:%s" % (arraf[0], arraf[1], arraf[2])
newproducts.append(productstr)
newvendors.append(vendorstr)
existversions = []
existproducts = []
existvendors = []
for versionstr in existcve['affected']:
existversions.append(versionstr)
arraf = versionstr.split(':')
vendorstr = arraf[1]
productstr = "%s:%s:%s" % (arraf[0], arraf[1], arraf[2])
existproducts.append(productstr)
existvendors.append(vendorstr)
# 3.2.2. get removed version, removed product and removed vendor => remove
for oldversion in list(set(existversions) - set(newversions)):
delCveidfromVersion(oldversion, cvejson)
logging.debug("Removed version %s for cve %s" % (oldversion, cveid))
for oldproduct in list(set(existproducts) - set(newproducts)):
delCveidfromProduct(oldproduct, cvejson)
logging.debug("Removed product %s for cve %s" % (oldproduct, cveid))
for oldvendor in list(set(existvendors) - set(newvendors)):
delCveidfromVendor(oldvendor, cvejson)
logging.debug("Removed vendor %s for cve %s" % (oldvendor, cveid))
# 3.2.3. get added version => add
for newversion in list(set(newversions) - set(existversions)):
addCveidtoVersion(newversion, cvejson)
arraf = newversion.split(':')
vendorstr = arraf[1]
productstr = "%s:%s:%s" % (arraf[0], arraf[1], arraf[2])
# 3.2 push to product
addCveidtoProduct(productstr, newversion, cvejson)
# 3.3 push to vendor
addCveidtoVendor(vendorstr, productstr, cvejson)
replaceCVE(cveid, cvejson)
updatecount = updatecount + 1
except Exception as e:
logging.error("Exception in importCVEFromJsonfile %s" % e)
pass
logging.info("updateCVEFromJsonfile done with file %s: %d cve imported and %d cve updated" % (JsonfilePath, retcount, updatecount))
# save statistics last cve update
if(len(lastcveupdate) == 20):
saveStatistic("lastcveupdate", lastcveupdate)
else:
existlastcve = getStatistic("lastcveupdate")
if existlastcve == "0":
saveStatistic("lastcveupdate", lastcveupdate)
else:
lencur = len(lastcveupdate)
for i in range(lencur-1):
if len(existlastcve) >= 20:
existlastcve.pop(0)
existlastcve.append(lastcveupdate[lencur - i - 1])
saveStatistic("lastcveupdate", existlastcve)
countCveSynced = getConfigkey("countcvesynced")
if countCveSynced == "0":
saveConfigkey("countcvesynced", retcount)
else:
saveConfigkey("countcvesynced", retcount + countCveSynced)
return retcount
# I. Import offline
def importCVEOffline(cvefolder):
logging.info("Starting import CVE from file in folder %s" % cvefolder)
if not os.path.isdir(cvefolder):
logging.error("Folder %s is not exits" % cvefolder)
return 0
cvefiles = [f for f in listdir(cvefolder) if isfile(join(cvefolder, f))]
importedcvecount = 0
try:
lstthread = []
for cvefile in cvefiles:
t = threading.Thread(target=importCVEFromJsonfile, args=(join(cvefolder, cvefile),))
lstthread.append(t)
for t in lstthread:
t.start()
for t in lstthread:
t.join()
fixdoublerecord() # cause multi thread
except Exception as e:
logging.error("Error with exception: %s" % e)
exit(0)
saveConfigkey("createdtime", datetime.datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"))
saveConfigkey("lastupdated", datetime.datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"))
logging.info("Import CVE from file in folder %s DONE with %d cves" % (cvefolder, importedcvecount))
def downloadUnzipFile(url, folder):
try:
logging.info("Downloading from %s to %s" % (url, folder))
filename = os.path.basename(urlparse(url).path)
r = requests.get(url, allow_redirects=True)
if r.status_code != 200:
logging.info("The url %s is not found" % url)
return ""
with open(folder + filename, 'wb') as f:
f.write(r.content)
with ZipFile(folder + filename, 'r') as zip:
zip.extractall(folder)
os.remove(folder + filename)
logging.info("Download done at %s" % folder + os.path.splitext(filename)[0])
return folder + os.path.splitext(filename)[0]
except Exception as e:
logging.error("Exception in downloadFile %s" % e)
return ""
# II. Import online
def importCVEOnline():
# clean db
collist = mongo.db.list_collection_names()
if "configuration" in collist:
mongo.db.configuration.delete_many({})
else:
newcol = mongo.db["configuration"]
if "cves" in collist:
mongo.db.cves.delete_many({})
else:
newcol = mongo.db["cves"]
if "products" in collist:
mongo.db.products.delete_many({})
else:
newcol = mongo.db["products"]
if "vendors" in collist:
mongo.db.vendors.delete_many({})
else:
newcol = mongo.db["vendors"]
if "versions" in collist:
mongo.db.versions.delete_many({})
else:
newcol = mongo.db["versions"]
if "vultypes" in collist:
mongo.db.vultypes.delete_many({})
else:
newcol = mongo.db["vultypes"]
if "statistics" in collist:
mongo.db.vultypes.delete_many({})
else:
newcol = mongo.db["statistics"]
cvefolder = "/tmp/cvedownload/"
if os.path.isdir(cvefolder):
shutil.rmtree(cvefolder)
os.mkdir(cvefolder)
# download cve from nvd
logging.info("Starting download all cve data from NVD to %s" % cvefolder)
baseUrl = "https://nvd.nist.gov/feeds/json/cve/1.1/nvdcve-1.1-%d.json.zip"
cveYear = 2002
while True:
if downloadUnzipFile(baseUrl % cveYear, cvefolder) == "":
break
cveYear = cveYear + 1
logging.info("Download DONE all cve data from NVD to %s" % cvefolder)
# import folder to mongo
importCVEOffline(cvefolder)
def getHashMetaOnline(url):
logging.info("Starting getHashMetaOnline from %s" % url)
try:
res = requests.get(url)
bodyres = res.text
arhash = bodyres.split("sha256:")
if len(arhash) != 2:
logging.error("The meta data in %s is wrong format!" % url)
return 0
logging.info("DONE getHashMetaOnline from %s" % url)
return arhash[1].strip()
except Exception as e:
logging.error("Exception in getHashMetaOnline: %s" % e)
return 0
# III. Update
def updateCVEOnline():
logging.info("Starting update CVE Online")
# 1. check last syntime, if over 8 days, the process will be exit
lastupdated = getConfigkey("lastupdated")
if lastupdated == "0":
logging.error("Please synchronize data from NVD first!")
return 0
lastupdateobj = datetime.datetime.strptime(lastupdated, "%Y-%m-%dT%H:%M:%SZ")
if (datetime.datetime.now() - lastupdateobj).days >= 7:
logging.error("Data is out of date (over 7days), please recreate date from NVD!")
return 0
# 2. check recent added
cvefolder = "/tmp/updatedownload/"
if os.path.isdir(cvefolder):
shutil.rmtree(cvefolder)
os.mkdir(cvefolder)
# 2.1. check hash
nvdhash = getHashMetaOnline("https://nvd.nist.gov/feeds/json/cve/1.1/nvdcve-1.1-recent.meta")
lastrecenthash = getConfigkey("lastrecenthash")
# 2.2. import new cve if hash changed
if nvdhash != lastrecenthash:
filedownload = downloadUnzipFile("https://nvd.nist.gov/feeds/json/cve/1.1/nvdcve-1.1-recent.json.zip", cvefolder)
if filedownload == "":
logging.error("Cannot download recent file")
return 0
importedcvecount = importCVEFromJsonfile(filedownload)
countCveSynced = getConfigkey("countcvesynced")
if countCveSynced == "0":
saveConfigkey("countcvesynced", importedcvecount)
else:
saveConfigkey("countcvesynced", importedcvecount + countCveSynced)
saveConfigkey("lastrecenthash", nvdhash)
# 3. check cve modified
# 3.1. check hash
nvdhash = getHashMetaOnline("https://nvd.nist.gov/feeds/json/cve/1.1/nvdcve-1.1-modified.meta")
lastmodifiedhash = getConfigkey("lastmodifiedhash")
# 3.2. if hash changed, foreach cve
if nvdhash != lastmodifiedhash:
filedownload = downloadUnzipFile("https://nvd.nist.gov/feeds/json/cve/1.1/nvdcve-1.1-modified.json.zip", cvefolder)
if filedownload == "":
logging.error("Cannot download modified file")
return 0
importedcvecount = updateCVEFromJsonfile(filedownload)
countCveSynced = getConfigkey("countcvesynced")
if countCveSynced == "0":
saveConfigkey("countcvesynced", importedcvecount)
else:
saveConfigkey("countcvesynced", importedcvecount + countCveSynced)
saveConfigkey("lastmodifiedhash", nvdhash)
saveConfigkey("lastupdated", datetime.datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"))
logging.info("DONE update CVE Online")
def syncvultype():
logging.info("sync vultype Starting...")
# load vultype
vultypes = mongo.db.vultypes.find({})
## sort
sortedtypes = []
for vultype in vultypes:
logging.info("Sorting %s" % vultype["vultype"])
vultype["cves"].sort()
new = {}
new["vultype"] = vultype["vultype"]
new["cves"] = vultype["cves"]
sortedtypes.append(new)
# vendors
vendors = mongo.db.vendors.find({})
for vendor in vendors:
logging.info("Updating vendor %s" % vendor['vendorid'])
vendorvuls = []
sortedcve = vendor["cves"].copy() # outofdate struct
sortedcve.sort()
for vultype in sortedtypes:
vulcom = list(set(vultype["cves"]).intersection(sortedcve))
new = vultype.copy()
new["cves"] = vulcom
vendorvuls.append(new)
statistics = []
for year in range(1999, datetime.date.today().year+1):
stat = {}
stat["year"] = year
cvestr = "cve-%d" % year
stat["vuls"] = {}
for vultype in vendorvuls:
count = 0
for cve in vultype["cves"]:
if cve.lower().startswith(cvestr):
count = count + 1
# new = {}
# new[vultype["vultype"]] = count
# stat["vuls"].append(new)
stat["vuls"][vultype["vultype"]] = count
statistics.append(stat)
# update to db
findrecord = {}
findrecord['vendorid'] = vendor['vendorid']
newvalues = { "$set": { "vulstat": statistics } }
#logging.info("Statistics %s" % statistics)
mongo.db.vendors.update_one(findrecord, newvalues)
# products
products = mongo.db.products.find({})
for product in products:
logging.info("Updating product %s" % product['productid'])
productvuls = []
sortedcve = product["cves"].copy()
sortedcve.sort()
for vultype in sortedtypes:
vulcom = list(set(vultype["cves"]).intersection(sortedcve))
new = vultype.copy()
new["cves"] = vulcom
productvuls.append(new)
statistics = []
for year in range(1999, datetime.date.today().year+1):
stat = {}
stat["year"] = year