Tried, Tested and Proven

Vulnerability title: Database Credentials Leak In Oracle Demantra

CVE: CVE-2013-5795
Vendor: Oracle
Product: Demantra
Affected version: 12.2.1
Fixed version: N/A
Reported by: Oliver Gruskovnjak


Demantra has a backend function that allows anyone to retrieve the database instance name and the corresponding credentials.

The target URL is:

Now the UAK key is calculated statically:

  String encryptedPassword = new String(CryptographicService.encodeHashStringHex("er6Us8wB", "SHA-256"));

      StringBuffer tmp = new StringBuffer("sge");

      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:
[+] Decrypted string is:

Together with the authentication bypass this can be exploited unauthenticated as well.


A remote, unauthenticated attacker could exploit this issue in combination with other found issues, to extract the database credentials and instance name.


Exploit code is not required.


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