Sense of Security - Security Advisory - SOS-13-001

vendor:

Active Directory Sync (GADS) Tool

by:

Nathaniel Carew

7,5

CVSS

HIGH

Exposure of sensitive information

not provided

CWE

Product Name: Active Directory Sync (GADS) Tool

Affected Version From: All versions up to 3.1.3

Affected Version To: 3.1.3

Patch Exists: YES

Related CWE: not yet assigned

CPE: not provided

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows, Linux, Solaris

2013

Sense of Security – Security Advisory – SOS-13-001

Due to a weakness in the way the Java encryption algorithm (PBEwithMD5andDES) has been implemented in the GADS tool all stored credentials can be decrypted into plain-text. This includes all of the encrypted passwords stored in any end-users saved XML configuration file, such as Active Directory accounts, SMTP, Proxy details, LDAP and OAuth tokens, etc.

Mitigation:

Upgrade to version 3.1.6

Source

Exploit-DB raw data:

Sense of Security - Security Advisory - SOS-13-001

Release Date.              03-Apr-2013
Last Update.               -              
Vendor Notification Date.  03-Sep-2012
Product.                   Google Active Directory Sync (GADS) Tool 
Platform.                  Windows, Linux, Solaris
Affected versions.         All versions up to 3.1.3
Severity Rating.           High
Impact.                    Exposure of sensitive information
Attack Vector.             From local without authentication
Solution Status.           Upgrade to version 3.1.6
CVE reference.             CVE - not yet assigned

Details.
Due to a weakness in the way the Java encryption algorithm
(PBEwithMD5andDES) has been implemented in the GADS tool all 
stored credentials can be decrypted into plain-text. This
includes all of the encrypted passwords stored in any end-users
saved XML configuration file, such as Active Directory accounts,
SMTP, Proxy details, LDAP and OAuth tokens, etc.

Proof of Concept.
Using the following information from the XML and GADS tool to
decrypt all encrypted passwords from any XML:

1. The hard coded salt: 
   SALT[] = { -87, -101, -56, 50, 86, 53, -29, 3 }
2. The hard coded DES interation count: 
   ITERATION_COUNT = 20
3. The Secret key derived from the uniqueID value in the XML: 
   6512630db9a74d90a5531f574b85f398
4. The cipher-text from the XML: 
   <encryptedAdminPassword>1edOUtamjNA=</encryptedAdminPassword>
5. The algorithm: PBEwithMD5andDES

The decrypted value is: winning!

Solution.
Upgrade to version 3.1.6

Discovered by.
Nathaniel Carew from Sense of Security Labs.

About us.
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The latest version of this advisory can be found at:
http://www.senseofsecurity.com.au/advisories/SOS-13-001.pdf

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