REDCap Cross Site Scripting

🗓️ 19 Jul 2019 00:00:00Reported by Dylan GarnaudType

packetstorm🔗 packetstormsecurity.com👁 218 Views

REDCap Cross Site Scripting found in versions 9.x.x before 9.1.2 and 8.x.x before 8.10.2, allows stored XSS via project name, calendar events, CSV upload, survey queue, and survey management system

Reporter	Title	Published	Views	Family All 11
0day.today	REDCap < 9.1.2 - Cross-Site Scripting Vulnerability	19 Jul 201900:00	–	zdt
Circl	CVE-2019-13029	19 Mar 202520:18	–	circl
CVE	CVE-2019-13029	11 Jul 201918:52	–	cve
Cvelist	CVE-2019-13029	11 Jul 201918:52	–	cvelist
Exploit DB	REDCap < 9.1.2 - Cross-Site Scripting	19 Jul 201900:00	–	exploitdb
EUVD	EUVD-2019-4597	7 Oct 202500:30	–	euvd
exploitpack	REDCap 9.1.2 - Cross-Site Scripting	19 Jul 201900:00	–	exploitpack
NVD	CVE-2019-13029	11 Jul 201919:15	–	nvd
OSV	CVE-2019-13029	11 Jul 201919:15	–	osv
Prion	Cross site scripting	11 Jul 201919:15	–	prion

`# Exploit Title: REDCap < 9.1.2 - Cross-Site Scripting  
# Date: 2019-07-19  
# Exploit Author: Dylan GARNAUD & Alexandre ZANNI (https://pwn.by/noraj) - Pentesters from Orange Cyberdefense France  
# Vendor Homepage: https://projectredcap.org  
# Software Link: https://projectredcap.org  
# Version: Redcap 9.x.x before 9.1.2 and 8.x.x before 8.10.2  
# Tested on: 9.1.0  
# CVE: CVE-2019-13029  
# Security advisory: https://gitlab.com/snippets/1874216  
  
### Stored XSS n°1 – Project name (found by Dylan GARNAUD)  
  
Most JavaScript event are blacklisted but not all. As a result we found one event that was not blacklisted and successfully used it.  
  
- Where? In project name  
- Payload: `<BODY onKeyPress=alert("xss")>`  
- Details: Since it is an *onkeypress* event, it is triggered whenever the user touch any key and since the XSS payload is stored in the project name it appears in several pages.  
- Privileges: It requires admin privileges to store it.  
- Location example: https://redcap.XXX/redcap/redcap_v9.1.0/ProjectSetup/index.php?pid=16&msg=projectmodified  
  
### Stored XSS n°2 – Calendar (found by Dylan GARNAUD)  
  
- Where? Calendar event  
- Payload: `<BODY onKeyPress=alert("xss")>`  
- Privileges: It requires admin privileges to store it.  
- Location example: https://redcap.XXX/redcap/redcap_v9.1.0/Calendar/index.php?pid=16&view=week&month=7&year=2019&day=12  
  
### Stored XSS n°3 – CSV upload (found by Dylan GARNAUD)  
  
- Where? Wherever there is a CSV upload feature with displayed parsed results  
- Payload:  
```csv  
record_id,my_first_instrument_complete,body_onkeypressalertxssinstrumetn_complete  
<script>alert("upload xss")</script>,,  
```  
- Details: Once the malicious CSV is uploaded, the parsed content is inserted into a HTML table where the XSS will be triggered.  
- Privileges: It requires admin privileges to store it.  
- URL examples of execution:  
+ https://redcap.XXX/redcap/redcap_v9.1.0/index.php?pid=16&route=DataComparisonController:index  
+ https://redcap.XXX/redcap/redcap_v9.1.0/DataQuality/index.php?pid=16  
  
### Stored XSS n°4 – Survey queue (found by Alexandre ZANNI)  
  
- Where? In the Survey Queue (choose a Projet > Project Home and Design > Design > Survey Queue)  
- Payload: `</textarea><svg/onload='alert("XSS survey queue")'>`  
- Privileges: It requires admin privileges to store it.  
- Location example: https://redcap.XXX/redcap/redcap_v9.1.0/Design/online_designer.php?pid=16  
  
### Stored XSS n°5 – Survey (found by Alexandre ZANNI)  
  
- Where? In the survey management system.  
+ Store: One has to select a project, go in the *Designer* section, choose *Survey Settings* and then store the payload in the WYSIWYG editor section named *Survey Instructions* (the same happens for *Survey Completion Text*).  
+ Execute: Anyone who consults the survey, for example https://redcap.XXX/redcap/surveys/?s=88XF8CRJH4, will trigger the XSS.  
- Payload:  
```html  
<HTML><BODY><?xml:namespace prefix="t" ns="urn:schemas-microsoft-com:time"><?import namespace="t" implementation="#default#time2"><t:set attributeName="innerHTML" to="XSS<SCRIPT DEFER>javascript:alert('Survey XSS')</SCRIPT>"></BODY></HTML>  
```  
- Privileges:  
+ Store: It requires admin privileges to store it.  
+ Execute: Any unauthenticated user that can consult a survey.  
`

19 Jul 2019 00:00Current

5.2Medium risk

Vulners AI Score5.2

EPSS0.02469