Re: Authentication flaw in APS-Soft DTE Axiom (CVE-2012-2455)

[Tomas Rzepka <tomas () certezza net>]

Hello list,

It has come to my attention that this vulnerability disclosure has been misinterpreted by some.  12.3.3 is NOT affected 
by this vulnerability!

Best regards,
Tomas Rzepka

-----Original Message-----
From: full-disclosure-bounces () lists grok org uk [mailto:full-disclosure-bounces () lists grok org uk] On Behalf Of 
Tomas Rzepka
Sent: den 6 september 2012 16:56
To: full-disclosure () lists grok org uk
Subject: [Full-disclosure] Authentication flaw in APS-Soft DTE Axiom (CVE-2012-2455)

Release date: 2012-09-06
Discovered by: Tomas Rzepka, Certezza AB, http://www.certezza.net
Vendor: Advanced Productivity Software (http://www.aps-soft.com) Versions Affected: Versions prior 12.3.3
Type: Authentication
Severity: High
CVSS Base Score: 8.5 (AV:N/AC:L/Au:N/C:C/I:P/A:N)
CVE: CVE-2012-2455

----------------
Description
----------------
In a penetration test we discovered a security flaw in DTE Axiom Mobile Solution.
The security vulnerability can cause customers loss of sensitive data, such as usernames, customer relations and 
projects.

Advanced Productivity Software DTE Axiom has a server application that can be published on the Internet to give users 
of iPhone/iPad and Black Berry access to the time tracking system. User is deployed by enabling the feature on each 
user in the backend administration. The user gets an e-mail from the system which contains two links. One link to 
download the application (from Apple AppStore). The other link is to feed the smart phone application with 
configuration such as server address, username, database and registration ID (GUID). The application communicates with 
the server over HTTPS.

Although the application has a registration ID to identify each device it is never used. By posting applicable HTTP 
parameters to the application server, anyone with knowledge how the application works can extract and alter information 
about users, customers, projects, etc., without being authenticated to the server. We only had access to an iPhone/iPad 
device so we could not test the Black Berry functionality and it does not use the same API. The security issue does not 
exist in the Black Berry API according to the vendor.

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Mitigation
----------------
Vendor has released a new version (12.3.3) which fixes this specific issue.

----------------
Timeline
----------------
2012-05-07: Vendor disclosures
2012-05-07: Vendor response
2012-09-04: Fix released
2012-09-06: Public disclosure

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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/